Robert Weis

Publications

Preprints/Journal publications/Book contributions/Proceedings

2022

  • Anomalous scaling at non-thermal fixed points of the sine-Gordon model
    By P. Heinen, A.N. Mikheev, T. Gasenzer,
       (KIP, Univ. of Heidelberg, Germany), Dec 2022. 20 pp., 2 figs.
       arXiv:2212.01163 [cond-mat.quant-gas] [Abstract, PDF, Other Formats]

  • Non-thermal fixed points of universal sine-Gordon coarsening dynamics
    By P. Heinen, A.N. Mikheev, C.-M. Schmied, T. Gasenzer,
       (KIP, Univ. of Heidelberg, Germany), Dec 2022. 15 pp., 7 figs.
       arXiv:2212.01162 [cond-mat.quant-gas] [Abstract, PDF, Other Formats]

  • Complex Langevin approach to interacting Bose gases
    By P. Heinen,1 T. Gasenzer,1,2,
       (1KIP, Heidelberg Univ., Germany; 2 ITP, Heidelberg Univ.), Apr 2022. 16 pp., 15 figs.
       arXiv:2204.10661 [cond-mat.quant-gas] [Abstract, PDF, Other Formats]

2021

  • Monte Carlo sampling of complex actions in extended state spaces
    By L. Kades,1 M. Gärttner,2,3,1 T. Gasenzer,3,1,4 J.M. Pawlowski1,4,
       (1ITP, Heidelberg Univ., Germany; 2 PI, Heidelberg Univ.; 3KIP, Heidelberg Univ.; 4EMMI Darmstadt, Germany), Jun 2021. 29 pp., 9 figs.
    Published in Phys. Rev. E 105: 045315, 2022
       Abstract    Full Text: [ PDF (1.2 MB) ]   
       arXiv:2106.09367 [hep-lat] [Abstract, PDF, Other Formats]

2020

  • Vortex motion quantifies strong dissipation in a holographic superfluid
    By P. Wittmer,1,2 C.-M. Schmied,2,3 T. Gasenzer,1,2,3 C. Ewerz1,2,
       (1ITP, Univ. of Heidelberg, Germany; 2EMMI Darmstadt, Germany; 3KIP, Univ. of Heidelberg, Germany), Nov 2020. 16 pp., 6 figs.
    Published in Phys. Rev. Lett. 127: 101601, 2021
       Abstract    Full Text: [ PDF (0.9 MB) ]   Additional Video Material
       arXiv:2011.12968 [hep-th] [Abstract, PDF, Other Formats]

  • Spiking neuromorphic chip learns entangled quantum states
    By S. Czischek,1 A. Baumbach,1 S. Billaudelle,1 B. Cramer,1 L. Kades,2 J. M. Pawlowski,2 M. K. Oberthaler,1 J. Schemmel,1 M. A. Petrovici,3,1 T. Gasenzer,1,2 M. Gärttner1,2,
       (1KIP, Univ. of Heidelberg, Germany; 2ITP, Heidelberg Univ., Germany; 3Dept. of Physiology, Univ. of Bern, Switzerland), Aug 2020. 11 pp., 5 figs.
    Published in SciPost Phys. 12: 039, 2022
       Abstract    Full Text: [ PDF (6.3 MB) ]   
       arXiv:2008.01039 [cs.ET] [Abstract, PDF, Other Formats]

  • Collisions of three-component vector solitons in Bose-Einstein condensates
    By S. Lannig,1 C.-M. Schmied,1 M. Prüfer,1 P. Kunkel,1 R. Strohmaier,1 H. Strobel,1 T. Gasenzer,1 P. G. Kevrekidis,2 M. K. Oberthaler1,
       (1KIP, Heidelberg Univ., Germany; 2Department of Mathematics and Statistics, U Mass, Amherst, USA), May 2020. 9 pp., 5 figs.
    Published in Phys. Rev. Lett. 125: 170401, 2020
       Abstract    Full Text: [ PDF (1.9 MB) ]   
       arXiv:2005.13278 [cond-mat.quant-gas] [Abstract, PDF, Other Formats]

2019

  • A Conjecture on the Minimal Size of Bound States
    By B. Freivogel,1 T. Gasenzer,2,3 A. Hebecker,3 S. Leonhardt3,
       (1ITP, Univ. Amsterdam, The Netherlands; 2KIP, Heidelberg Univ., Germany; 3ITP, Heidelberg Univ., Germany), Dec 2019. 41 pp., 7 figs.
    Published in SciPost Phys. 8: 058, 2020
       Abstract    Full Text: [ PDF (354 kB) ]   
       arXiv:1912.09485 [hep-th] [Abstract, PDF, Other Formats]

  • Sampling scheme for neuromorphic simulation of entangled quantum systems
    By S. Czischek,1 J.M. Pawlowski,2 T. Gasenzer,1 M. Gärttner1,
       (1KIP, Heidelberg Univ., Germany; 2ITP, Heidelberg Univ., Germany), Jul 2019. 15 pp., 7 figs. Editors' suggestion Nov. 13, 2019
    Published in Phys. Rev. B 100: 195120, 2019
       Abstract    Full Text: [ PDF (2.6 MB) ]   
       arXiv:1907.12844 [quant-ph] [Abstract, PDF, Other Formats]

  • Stability analysis of ground states in a one-dimensional trapped spin-1 Bose gas
    By C.-M. Schmied,1,2 T. Gasenzer,1 M. K. Oberthaler,1 P. G. Kevrekidis2,
       (1KIP, Heidelberg Univ., Germany; 2Department of Mathematics and Statistics, U Mass, Amherst, USA), May 2019. 17 pp., 13 figs.
    Published in CNSNS 83: 105050, 2019
       Abstract    Full Text: [ PDF (1.7 MB) ]   
       arXiv:1905.03069 [cond-mat.quant-gas] [Abstract, PDF, Other Formats]

  • Violation of single-length scaling dynamics via spin vortices in an isolated spin-1 Bose gas
    By C.-M. Schmied,1,2 T. Gasenzer,1 P. B. Blakie2,
       (1KIP, Heidelberg Univ., Germany; 2Dodd-Walls Centre for Photonic and Quantum Technologies, University of Otago, New Zealand), Apr 2019. 9 pp., 6 figs.
    Published in Phys. Rev. A 100: 033603, 2019
       Abstract    Full Text: [ PDF (6 MB) ]   
       arXiv:1904.13222 [cond-mat.quant-gas] [Abstract, PDF, Other Formats]

2018

2017

  • Spatially distributed multipartite entanglement enables Einstein-Podolsky-Rosen steering of atomic clouds
    By P. Kunkel, M. Prüfer, H. Strobel, D. Linnemann, A. Frölian, T. Gasenzer, M. Gärttner, M. K. Oberthaler,
       (KIP, Univ. of Heidelberg, Germany), Aug 2017. 27 pp., 10 figs. Suppl. Mat.; Science Perspective by D. Cavalcanti.
    Published in Science 360: 413, 2018
       Abstract    Full Text: [ PDF (496 kB) ]   
       arXiv:1708.02407 [cond-mat.quant-gas] [Abstract, PDF, Other Formats]

  • Quantum quench dynamics of the attractive one-dimensional Bose gas via the coordinate Bethe ansatz
    By J. C. Zill,1 T. M. Wright,1 K. V. Kheruntsyan,1 T. Gasenzer,2,3 and M. J. Davis1,4,
       (1U Queensland, Brisbane, Australia; 2KIP, Univ. of Heidelberg, Germany; 3EMMI Darmstadt, Germany; 4JILA, UC Boulder, U.S.A.), May 2017. 36 pp., 11 figs.
    Published in SciPost Phys. 4: 011, 2018
       Abstract    Full Text: [ PDF (3.3 MB) ]   
       arXiv:1705.09168 [cond-mat.quant-gas] [Abstract, PDF, Other Formats]

  • Universal equilibrium scaling functions at short times after a quench
    By M. Karl,1,2 H. Cakir,1,2 J. C. Halimeh,3 M. K. Oberthaler,1,2 M. Kastner,4,5 T. Gasenzer1,2,
       (1KIP, Univ. of Heidelberg, Germany; 2EMMI Darmstadt, Germany; 3Physics Dept. & A. Sommerfeld C., LMU, München, Germany; 4NITheP, Stellenbosch, SA; ITP, 5Univ. of Stellenbosch, SA), Apr 2017. 11 pp., 8 figs.
    Published in Phys. Rev. E 96: 022110, 2017
       Abstract    Full Text: [ PDF (662 kB) ]   
       arXiv:1704.03517 [cond-mat.stat-mech] [Abstract, PDF, Other Formats]

2016

  • Aus dem Gleichgewicht - Stillstand und Dynamik
    By T. Gasenzer,
       (KIP, Univ. of Heidelberg, Germany), Dec 2016. 8 pp.; Beitrag zum Forschungsmagazin der Univ. Heidelberg
    Published in Ruperto Carola 9: 18, 2016
       Abstract    Full Text: [ PDF (200 kB) ]   
  • Strongly anomalous non-thermal fixed point in a quenched two-dimensional Bose gas
    By M. Karl,1,2,3 T. Gasenzer1,3,
       (1KIP, and 2ITP, Univ. of Heidelberg; Germany; and 3EMMI Darmstadt, Germany), Nov 2016. 17 pp., 12 figs.
    Published in New J. Phys. 19: 093014, 2017
       Abstract    Full Text: [ PDF (45 MB) ]   Additional and Video Material
       arXiv:1611.01163 [cond-mat.quant-gas] [Abstract, PDF, Other Formats]

  • Prethermalization and universal dynamics in near-integrable quantum systems
    By T. Langen,1 T. Gasenzer,2 J. Schmiedmayer3,
       (1JILA, CU and NIST, Boulder, USA; 2KIP, Univ. of Heidelberg, and EMMI, Darmstadt, Germany; 3Atominstitut, TU Wien, Austria), Mar 2016. 36 pp., 12 figs.; review article for special issue of JSTAT on Quantum Integrability in Out of Equilibrium Systems; comments are welcome
    Published in JSTAT 064009, 2016
       Abstract    Full Text: [ PDF (4.9 MB) ]   
       arXiv:1603.09385 [cond-mat.quant-gas] [Abstract, PDF, Other Formats]

  • Formation of Bose-Einstein condensates
    By M. J. Davis,1,2 T. M. Wright,1 T. Gasenzer,3,4 S. A. Gardiner,5 N. P. Proukakis6,
       (1U Queensland, Brisbane, Australia; 2JILA, UC Boulder, U.S.A., 3KIP, Univ. of Heidelberg, Germany; 4EMMI Darmstadt, Germany; 5JQC, Durham Univ., UK; 6JQC, Newcastle Univ., UK), Jan 2016. 15 pp., 4 figs. In: Proc. Int. Workshop Univ. Themes in BEC, Leiden, NL.
    Universal Themes of Bose-Einstein Condensation. N. Proukakis, D. Snoke, P. Littlewood, eds. Cambridge: Cambridge University Press 2017
       arXiv:1601.06197 [cond-mat.quant-gas] [Abstract, PDF, Other Formats]

  • Geometric phases causing lifetime modifications of metastable states of hydrogen
    By M.-I. Trappe,1,2 P. Augenstein,3 M. DeKieviet,3 T. Gasenzer,2,4,5 and O. Nachtmann2,
       (1CQT, National Univ. Singapore, Singapore; 2ITP; 3PI, and 4KIP, Univ. of Heidelberg, Germany; 5EMMI Darmstadt, Germany), Jan 2016. 15 pp., 18 figs.
    Published in Eur. Phys. J. D 70: 76, 2016
       Abstract    Full Text: [ PDF (1,02 MB) ]   
       arXiv:1601.02286 [physics.atom-ph] [Abstract, PDF, Other Formats]

  • A coordinate Bethe ansatz approach to the calculation of equilibrium and nonequilibrium correlations of the one-dimensional Bose gas
    By J. C. Zill,1 T. M. Wright,1 K. V. Kheruntsyan,1 T. Gasenzer,2,3 and M. J. Davis1,4,
       (1U Queensland, Brisbane, Australia; 2KIP, Univ. of Heidelberg, Germany; 3EMMI Darmstadt, Germany; 4JILA, UC Boulder, U.S.A.), Jan 2016. 17 pp., 8 figs.
    Published in New. J. Phys. 18: 045010, 2016
       Abstract    Full Text: [ PDF (1.3 MB) ]   
       arXiv:1601.00434 [cond-mat.quant-gas] [Abstract, PDF, Other Formats]

2015

  • Build-up of the Kondo effect from real-time 2PI effective action for the Anderson impurity model
    By S. Bock,1,3 A. Liluashvili,1,3 and T. Gasenzer1,2,3,
       (1ITP and 2KIP, Univ. of Heidelberg, Germany; 1EMMI Darmstadt, Germany), Dec 2015. 25 pp., 20 figs.
    Published in Phys. Rev. B 94: 045108, 2016
       Abstract    Full Text: [ PDF (3.0 MB) ]   
       arXiv:1512.06127 [cond-mat.mes-hall] [Abstract, PDF, Other Formats]

  • Observation of scaling in the dynamics of a strongly quenched quantum gas
    By E. Nicklas,1 M. Karl,1 M. Höfer,1 A. Johnson,2 W. Muessel,1 H. Strobel,1 J. Tomkovic,1 T. Gasenzer,1 and M. K. Oberthaler1,
       (1KIP, Univ. of Heidelberg, Germany; 2Laboratoire Charles-Fabry, Palaiseau, France), Sep 2015. 10 pp., 4 figs.
    Published in Phys. Rev. Lett. 115: 245301, 2015
       Abstract    Full Text: [ PDF (515 kB) ]   
       arXiv:1509.02173 [cond-mat.quant-gas] [Abstract, PDF, Other Formats]

  • Experimental characterization of a quantum many-body system via higher-order correlations
    By T. Schweigler,1 V. Kasper,2 S. Erne,1,2 I. Mazets,1 B. Rauer,1 F. Cataldini,1 T. Langen,1 T. Gasenzer,3 J. Berges,2 J. Schmiedmayer1,
       (1Atominstitut, TU Wien, Austria; 2ITP, Univ. of Heidelberg, Germany; 3KIP, Univ. of Heidelberg, Germany), May 2015. 10 pp., 6 figs.; News and Views by I. Spielman.
    Published in Nature 545: 323, 2017
       Abstract    Full Text: [ PDF (5.7 MB) ]   
       arXiv:1505.03126 [cond-mat.quant-gas] [Abstract, PDF, Other Formats]

2014

  • Experimental Observation of a Generalized Gibbs Ensemble
    By T. Langen,1 S. Erne,1,2,3 R. Geiger,1 B. Rauer,1 T. Schweigler,1 M. Kuhnert,1 W. Rohringer,1 I.E. Mazets,1,4,5 T. Gasenzer,2,3 J. Schmiedmayer1,
       (1Atominstitut, TU Wien, Austria; 2ITP, Univ. of Heidelberg, Germany; 3EMMI, GSI, Darmstadt, Germany; 4Wolfgang Pauli Institute, Vienna, Austria; 5Ioffe Physico-Technical Institute, St. Petersburg, Russia), Nov 2014. 9 pp., 4 figs.; Science Perspective by I. Spielman; Press release; Featured in KITP newsletter Spring 2018 (PDF).
    Published in Science 348: 185, 2015
       Abstract    Full Text: [ PDF (1 MB) ]   
       arXiv:1411.7185 [cond-mat.quant-gas] [Abstract, PDF, Other Formats]

  • Non-Thermal Fixed Point in a Holographic Superfluid
    By C. Ewerz, T. Gasenzer, M. Karl, and A. Samberg,
       (ITP & KIP, Univ. of Heidelberg, Germany; and EMMI Darmstadt, Germany), Oct 2014. 32 pp., 8 figs., Online video material
    Published in JHEP 05: 070, 2015
       Abstract    Full Text: [ PDF (1.7 MB) ]   Online Video Material
       arXiv:1410.3472 [hep-th] [Abstract, PDF, Other Formats]

  • Relaxation dynamics of the Lieb-Liniger gas following an interaction quench: A coordinate Bethe-ansatz analysis
    By J. C. Zill,1,2,3 T. M. Wright,1 K. V. Kheruntsyan,1 T. Gasenzer,2,3 and M. J. Davis1,
       (1U Queensland, Australia; 2ITP and CQD, Univ. of Heidelberg, Germany; and 3EMMI Darmstadt, Germany), Jul 2014. 18 pp., 9 figs.
    Published in Phys. Rev. A 91: 023611, 2015
       Abstract    Full Text: [ PDF (2.2 MB) ]   
       arXiv:1407.4998 [cond-mat.quant-gas] [Abstract, PDF, Other Formats]

  • Anomalous scaling at non-thermal fixed points of Burgers' and Gross-Pitaevskii turbulence
    By S. Mathey, T. Gasenzer, and J.M. Pawlowski,
       (ITP and CQD, Univ. of Heidelberg, Germany; and EMMI Darmstadt, Germany), May 2014. 21 pp., 12 figs.
    Published in Phys. Rev. A 92: 023635, 2015
       Abstract    Full Text: [ PDF (1.1 MB) ]   
       arXiv:1405.7652 [cond-mat.quant-gas] [Abstract, PDF, Other Formats]

2013

  • Universal scaling at non-thermal fixed points of a two-component Bose gas
    By M. Karl, B. Nowak, and T. Gasenzer,
       (ITP, Univ. of Heidelberg, Germany; and EMMI Darmstadt, Germany), Jul 2013. 13 pp., 12 figs.
    Published in Phys. Rev. A 88: 063615, 2013
       Abstract    Full Text: [ PDF (6.3 MB) ]   
       arXiv:1307.7368 [cond-mat] [Abstract, PDF, Other Formats]

  • Gauge turbulence, topological defect dynamics, and condensation in Higgs models
    By T. Gasenzer, L. McLerran, J. M. Pawlowski, D. Sexty,
       (ITP, Univ. of Heidelberg & EMMI Darmstadt, Germany; RIKEN BNL, U.S.A.; and China CNU, Wuhan, China), Jul 2013. 16 pp., 14 figs.
    Published in Nucl. Phys. A 930: 163, 2014
       Abstract    Full Text: [ PDF (3 MB) ]   
       arXiv:1307.5301 [hep-ph] [Abstract, PDF, Other Formats]

  • Non-thermal fixed points: universality, topology, & turbulence in Bose gases
    By B. Nowak, S. Erne, M. Karl, J. Schole, D. Sexty, and T. Gasenzer,
       (ITP, Univ. of Heidelberg, Germany; and EMMI Darmstadt, Germany), Feb 2013. 37 pp., 16 figs., in Strongly Interacting Quantum Systems out of Equilibrium, edited by T. Giamarchi, A. Millis, O. Parcollet, H. Saleur, L. Cugliandolo.
       Abstract    Full Text: [ PDF (Ebook) ]   
       arXiv:1302.1448 [cond-mat.quant-gas] [Abstract, PDF, Other Formats]

  • Tuning universality far from equilibrium
    By M. Karl, B. Nowak, and T. Gasenzer,
       (ITP, Univ. of Heidelberg, Germany; and EMMI Darmstadt, Germany), Feb 2013. 8 pp., 5 figs.
    Published in Sci. Rep. 3: 2394, 2013
       Abstract    Full Text: [ PDF (705 kB) ]   
       arXiv:1302.1122 [cond-mat.quant-gas] [Abstract, PDF, Other Formats]

2012

  • Universal dynamics on the way to thermalisation
    By B. Nowak, Jan Schole and T. Gasenzer,
       (ITP, Univ. of Heidelberg, Germany; and EMMI Darmstadt, Germany), June 2012. 5 pp., 6 figs.
    Published in New. J. Phys. 16: 093052, 2014
       Abstract    Full Text: [ PDF (2.03 MB) ]   
       arXiv:1206.3181 [cond-mat.quant-gas] [Abstract, PDF, Other Formats]

  • Finite-size effects in strongly interacting Rydberg gases
    By M. Gärttner1,2, K. P. Heeg1, T. Gasenzer1,2, and J. Evers1,
       (1: MPI f. Kernphysik, Heidelberg; 2: ITP, Univ. of Heidelberg, Germany; and EMMI Darmstadt, Germany), May 2012. 9 pp., 7 figs.
    Published in Phys. Rev. A 86: 033422, 2012
       Abstract    Full Text: [ PDF (714 kB) ]   
       arXiv:1205.4953 [physics.atom-ph] [Abstract, PDF, Other Formats]

  • Critical Dynamics of a Two-dimensional Superfluid near a Non-Thermal Fixed Point
    By J. Schole, B. Nowak, and T. Gasenzer,
       (ITP, Univ. of Heidelberg, Germany; and EMMI Darmstadt, Germany), Apr 2012. 9 pp., 11 figs.
    Published in Phys. Rev. A 86: 013624, 2012
       Abstract    Full Text: [ PDF (1.44 MB) ]   
       arXiv:1204.2487 [cond-mat.quant-gas] [Abstract, PDF, Other Formats]

  • Nonthermal fixed points and solitons in a one-dimensional Bose gas
    By M. Schmidt, S. Erne, B. Nowak, D. Sexty, and T. Gasenzer,
       (ITP, Univ. of Heidelberg, Germany; and EMMI Darmstadt, Germany), Mar 2012. 12 pp., 11 figs.
    Published in New J. Phys. 14: 075005, 2012
       Abstract    Full Text: [ PDF (1.1 MB) ]   
       arXiv:1203.3651 [cond-mat.quant-gas] [Abstract, PDF, Other Formats]

  • Dynamic formation of Rydberg aggregates at off-resonant excitation
    By M. Gärttner1,2, K. P. Heeg1, T. Gasenzer1,2, and J. Evers1,
       (1: MPI f. Kernphysik, Heidelberg; 2: ITP, Univ. of Heidelberg, Germany; and EMMI Darmstadt, Germany), Mar 2012. 5 pp., 4 figs.
    Published in Phys. Rev. A 88: 043410, 2013
       Abstract    Full Text: [ PDF (974 kB) ]   
       arXiv:1203.2884 [physics.atom-ph] [Abstract, PDF, Other Formats]

2011

  • Nonthermal fixed points, vortex statistics, and superfluid turbulence in an ultracold Bose gas
    By B. Nowak, J. Schole, D. Sexty, and T. Gasenzer,
       (ITP, Univ. of Heidelberg, Germany; and EMMI Darmstadt, Germany), Nov 2011. 20 pp., 23 figs.
    Published in Phys. Rev. A 85: 043627, 2012
       Abstract    Full Text: [ PDF (11.6 MB) ]   
       arXiv:1111.6127 [cond-mat.quant-gas] [Abstract, PDF, Other Formats]

  • Charge separation in Reheating after Cosmological Inflation
    By T. Gasenzer, B. Nowak, and D. Sexty,
       (ITP, Univ. of Heidelberg, Germany; and EMMI Darmstadt, Germany), Aug 2011. 4 pp., 6 figs.
    Published in Phys. Lett. B 710: 500, 2012
       Abstract    Full Text: [ PDF (628 kB) ]   Online Video Material
       arXiv:1108.0541 [hep-ph] [Abstract, PDF, Other Formats]

  • Metastable states of hydrogen: their geometric phases and flux densities
    By T. Gasenzer, O. Nachtmann, and M.-I. Trappe,
       (ITP, Univ. of Heidelberg, Germany; and EMMI Darmstadt, Germany), Aug 2011. 28 pp., 12 figs.
    Published in Eur. Phys. J. D 66: 113, 2012
       Abstract    Full Text: [ PDF (588.6 kB) ]   
       arXiv:1107.6006 [physics.atom-ph] [Abstract, PDF, Other Formats]

  • Non-equilibrium Quantum Many-Body Dynamics: Functional Integral Approaches
    By C. Bodet, M. Kronenwett, B. Nowak, D. Sexty, and T. Gasenzer,
       (ITP, Univ. of Heidelberg, Germany; and EMMI Darmstadt, Germany), Dec 2010. 18 pp., 6 figs. In: Proc. Int. Workshop FINESS 2009, Durham, UK.
    Quantum Gases: Finite Temperature and Non-Equilibrium Dynamics (Vol. 1 Cold Atoms Series). N.P. Proukakis, S.A. Gardiner, M.J. Davis and M.H. Szymanska, eds. Imperial College Press, London 2013
       arXiv:1101.0397 [cond-mat.quant-gas] [Abstract, PDF, Other Formats]

2010

  • Superfluid Turbulence: Nonthermal Fixed Point in an Ultracold Bose Gas
    By B. Nowak, D. Sexty, and T. Gasenzer,
       (ITP, Univ. of Heidelberg, Germany; and EMMI Darmstadt, Germany), Dec 2010. 4 pp., 5 figs.
    Published in Phys. Rev. B 84: 020506(R), 2011
       Abstract    Full Text: [ PDF (422 kB) ]   
       arXiv:1012.4437 [cond-mat.quant-gas] [Abstract, PDF, Other Formats]

  • Real-time effective-action approach to the Anderson quantum dot
    By D. Sexty, T. Gasenzer, and J. M. Pawlowski,
       (ITP, Univ. of Heidelberg, Germany; and EMMI Darmstadt, Germany), Dec 2010. 12 pp., 13 figs.
    Published in Phys. Rev. B 83: 165315, 2011
       Abstract    Full Text: [ PDF (650 kB) ]   
       arXiv:1012.4293 [cond-mat.mes-hall] [Abstract, PDF, Other Formats]

  • Far-from-equilibrium dynamics of an ultracold Fermi gas
    By M. Kronenwett and T. Gasenzer,
       (ITP, Univ. of Heidelberg, Germany; and EMMI Darmstadt, Germany), Dec 2010. 20 pp., 11 figs.
    Published in Appl. Phys. B 102 (3): 469-488, 2011
       Abstract    Full Text: [ PDF (1.2 MB) ]   
       arXiv:1012.3874 [cond-mat.quant-gas] [Abstract, PDF, Other Formats]

  • Non-thermal equilibration of a one-dimensional Fermi gas
    By M. Kronenwett and T. Gasenzer,
       (ITP, Univ. of Heidelberg, Germany; and EMMI Darmstadt, Germany), Mar 2010. 4 pp., 4 figs.
       arXiv:1006.3330 [cond-mat.quant-gas] [Abstract, PDF, Other Formats]

  • Far-from-equilibrium quantum many-body dynamics
    By T. Gasenzer, S. Keßler, and J.M. Pawlowski,
       (ITP, Univ. of Heidelberg, Germany; and EMMI Darmstadt, Germany), Mar 2010. 20 pp., 6 figs.
    Published in Eur. Phys. J. C 70: 423, 2010
       Abstract    Full Text: [ PDF (801 kB) ]   
       arXiv:1003.4163 [cond-mat.quant-gas] [Abstract, PDF, Other Formats]

  • Longitudinal Atomic Beam Spin Echo Experiments: A possible way to study Parity Violation in Hydrogen
    By M. DeKieviet,1 T. Gasenzer,2,3 O. Nachtmann,2 M.-I. Trappe2,
       (1PI, Univ. Heidelberg, Germany; 2ITP, Univ. of Heidelberg, Germany; 3EMMI Darmstadt, Germany), Mar 2010. 6 pp., 4 figs. In: Proc. 4th International Workshop From Parity Violation to Hadronic Structure and more... PAVI09, Bar Harbor, ME.
    Published in Hyperfine Interactions 200 (1-3):35, 2011
       Abstract    Full Text: [ PDF (246 kB) ]   
       arXiv:1003.0622 [cond-mat.quant-gas] [Abstract, PDF, Other Formats]

  • Two-mode Bose gas: Beyond classical squeezing
    By C. Bodet (1,3), J. Estève (2), M. K. Oberthaler (2,3), and T. Gasenzer (1,3),
       (1: ITP, Univ. of Heidelberg, Germany, 2: KIP, Univ. of Heidelberg, Germany, 3: EMMI Darmstadt, Germany), Feb 2010. 15 pp., 16 figs.
    Published in Phys. Rev. A 81: 063605, 2010
       Abstract    Full Text: [ PDF (1.741 kB) ]   
       arXiv:1002.2504 [cond-mat.quant-gas] [Abstract, PDF, Other Formats]

2009

  • Matter Wave Turbulence: Beyond Kinetic Scaling
    By C. Scheppach (1), J. Berges (2,3), and T. Gasenzer (1,3),
       (1: Univ. of Heidelberg, Germany, 2: TU Darmstadt, Germany, 3: EMMI Darmstadt, Germany), Dec 2009. 18 pp., 2 figs.
    Published in Phys. Rev. A 81: 033611, 2010
       Abstract    Full Text: [ PDF (390 kB) ]   
       arXiv:0912.4183 [cond-mat.quant-gas] [Abstract, PDF, Other Formats]

  • Single-particle density matrix for a time-dependent strongly interacting one-dimensional Bose gas
    By R. Pezer (1), T. Gasenzer (2), and H. Buljan (1),
       (1: Univ. of Zagreb, Croatia, 2: Univ. of Heidelberg, Germany), Jul 2009. 7 pp., 2 figs.
    Published in Phys. Rev. A 80: 053616, 2009
       Abstract    Full Text: [ PDF (176 kB) ]   
       arXiv:0907.4608 [cond-mat.quant-gas] [Abstract, PDF, Other Formats]

  • A computer controlled pendulum with position readout
    By H. Hauptfleisch, T. Gasenzer, K. Meier, O. Nachtmann, and J. Schemmel,
       (Univ. of Heidelberg, Germany), May 2009. 9 pp., 9 figs.
    Published in Am. J. Phys. 78: 555, 2010
       Abstract    Full Text: [ PDF (2.2 MB) ]   
       arXiv:0905.2015 [physics.ed-ph] [Abstract, PDF, Other Formats]

2008

  • Ultracold gases far from equilibrium
    By Thomas Gasenzer,
       (ITP, Univ. of Heidelberg, Germany), Nov 2008. 59 pp., 26 figs. Lecture notes, 46. Int. Universitätswochen f. Theoret. Physik, Schladming, Austria, 2008
    Published in Eur. Phys. J. ST 168: 89, 2009
       Abstract    Full Text: [ PDF (1.8 MB) ]   
       arXiv:0812.0004 [cond-mat.other] [Abstract, PDF, Other Formats]

  • Parity Violation in Hydrogen and Longitudinal Atomic Beam Spin Echo I
    By T. Bergmann, T. Gasenzer, M. DeKieviet, O. Nachtmann, and M.-I. Trappe,
       (Univ. of Heidelberg, Germany), Mar 2008. 27 pp., 10 figs.
    Published in Eur. Phys. J. D 54: 551, 2009
       Abstract    Full Text: [ PDF (564 kB) ]   
       arXiv:0811.1460 [physics.atom-ph] [Abstract, PDF, Other Formats]

  • Free expansion of a Lieb-Liniger gas: Asymptotic form of the wave functions
    By D. Jukić (1), R. Pezer (1), T. Gasenzer (2,3), and H. Buljan (1),
       (1: Univ. of Zagreb, Croatia, 2: Univ. of Heidelberg, Germany, 3: KITP, Sta Barbara, CA), Apr 2008. 7 pp., 2 figs.
    Published in Phys. Rev. A 78: 053602, 2008
       Abstract    Full Text: [ PDF (542 kB) ]   
       arXiv:0804.2580 [cond-mat.other] [Abstract, PDF, Other Formats]

  • 2PI nonequilibrium versus transport equations for an ultracold Bose gas
    By A. Branschädel and T. Gasenzer,
       (University of Heidelberg, Germany), Jan 2008. 24 pp., 7 figs.
    Published in J. Phys. B 41: 135302, 2008
       Abstract    Full Text: [ PDF (1.08 MB) ]   
       arXiv:0801.4466 [cond-mat.other] [Abstract, PDF, Other Formats]

2007

  • Towards far-from-equilibrium quantum field dynamics: A functional renormalisation-group approach
    By T. Gasenzer, and J. M. Pawlowski,
       (ITP, Univ. of Heidelberg, Germany), Oct 2007. 6 pp., 5 figs.
    Published in Phys. Lett. B 670: 135, 2008
       Abstract    Full Text: [ PDF (394 kB) ]   
       arXiv:0710.4627 [cond-mat.other] [Abstract, PDF, Other Formats]

  • Fermi-Bose transformation for the time-dependent Lieb-Liniger gas
    By H. Buljan (1), R. Pezer (1), and T. Gasenzer (2),
       (1: Univ. of Zagreb, Croatia, 2: Univ. of Heidelberg, Germany), Sep 2007. 4 pp., 1 fig.
    Published in Phys. Rev. Lett. 100: 080406, 2008
       Abstract    Full Text: [ PDF (542 kB) ]   
       arXiv:0709.1444 [cond-mat.other] [Abstract, PDF, Other Formats]

  • Metastable states, the adiabatic theorem and parity violating geometric phases II
    By T. Bergmann, T. Gasenzer, and O. Nachtmann,
       (Univ. of Heidelberg, Germany), Mar 2007. 63 pp., 8 figs., 10 tables
    Published in Eur. Phys. J. D 45: 211, 2007
       Abstract    Full Text: [ PDF (742 kB) ]   
       arXiv:physics/0703276 [Abstract, PDF, Other Formats]

  • Metastable states, the adiabatic theorem and parity violating geometric phases I
    By T. Bergmann, T. Gasenzer, and O. Nachtmann,
       (Univ. of Heidelberg, Germany), Mar 2007. 30 pp.
    Published in Eur. Phys. J. D 45: 197, 2007
       Abstract    Full Text: [ PDF (211 kB) ]   
       arXiv:physics/0703275 [Abstract, PDF, Other Formats]

  • Quantum versus classical statistical dynamics of an ultracold Bose gas
    By J. Berges and T. Gasenzer,
       (ITP, Univ. of Heidelberg, Germany), Mar 2007. 19 pp., 10 figs.
    Published in Phys. Rev. A 76: 033604, 2007
       Abstract    Full Text: [ PDF (697 kB) ]   
       arXiv:cond-mat/0703163 [Abstract, PDF, Other Formats]

2006

2005

  • Non-perturbative dynamical many-body theory of a Bose-Einstein condensate
    By T. Gasenzer, J. Berges, M. G. Schmidt, and M. Seco,
       (ITP, Univ. of Heidelberg, Germany), Jul 2005. 20 pp., 12 figs.
    Published in Phys. Rev. A 72: 063604, 2005
       Abstract    Full Text: [ PDF (588 kB) ]   
       arXiv:cond-mat/0507480 [Abstract, PDF, Other Formats]

2004

  • Photoassociation dynamics in a Bose-Einstein condensate
    By T. Gasenzer,
       (ITP, Univ. of Heidelberg, Germany), Jun 2004. 25 pp., 16 figs.
    Published in Phys. Rev. A 70: 043618, 2004
       Abstract    Full Text: [ PDF (294 kB) ]   
       arXiv:cond-mat/0406629 [Abstract, PDF, Other Formats]

  • High light intensity photoassociation in a Bose-Einstein condensate
    By T. Gasenzer,
       (ITP, Univ. of Heidelberg, Germany), Jan 2004. 4 pp., 4 figs.
    Published in Phys. Rev. A 70: 021603(R), 2004
       Abstract    Full Text: [ PDF (68 kB) ]   
       arXiv:cond-mat/0401219 [Abstract, PDF, Other Formats]

2003

  • Dynamics of correlations in atomic Bose-Einstein condensates
    By K. Goral (1), T. Köhler (1), T. Gasenzer (2), and K. Burnett (1),
       (1: University of Oxford, UK; 2: University of Heidelberg, Germany), Nov 2003. 5 pp., 1 fig.
    Published in J. Mod. Opt. 51: 1731, 2004
       Abstract    Full Text: [ PDF (229 kB) ]   
       arXiv:cond-mat/0311659 [Abstract, PDF, Other Formats]

  • Pulsed Raman output coupler for an atom laser
    By J. Ruostekoski (1), T. Gasenzer (2), and D.A.W. Hutchinson (3),
       (1: Univ. of Hertfortshire, UK; Univ. of Oxford, UK; 3: Univ. of Otago, NZ), Jul 2003. 4 pp., 4 figs.
    Published in Phys. Rev. A 68: 011604(R), 2003
       Abstract    Full Text: [ PDF (72 kB) ]   
       arXiv:cond-mat/0307585 [Abstract, PDF, Other Formats]

  • Heating and atom loss during upward ramps of Feshbach resonance levels in Bose-Einstein condensates
    By T. Köhler (1), K. Goral (1), T. Gasenzer (2),
       (1: University of Oxford, UK; 2: University of Heidelberg, Germany), Apr 2004. 11 pp., 7 figs.
    Published in Phys. Rev. A 70: 023613, 2004
       Abstract    Full Text: [ PDF (229 kB) ]   
       arXiv:cond-mat/0305060 [Abstract, PDF, Other Formats]

  • Long-range nature of Feshbach molecules in Bose-Einstein condensates
    By T. Köhler (1), T. Gasenzer, P. Julienne (2), and K. Burnett (1),
       (1: University of Oxford, UK; 2: NIST, Gaithersburg, U.S.A.), Feb 2003. 5 pp., 3 figs.
    Published in Phys. Rev. Lett. 91: 230401, 2003
       Abstract    Full Text: [ PDF (144 kB) ]   
       arXiv:cond-mat/0302082 [Abstract, PDF, Other Formats]

2002

  • Microscopic Theory of Oscillations between Atoms and Molecules in a Bose-Einstein Condensate
    By T. Köhler, T. Gasenzer, and K. Burnett,
       (University of Oxford, UK), . In: Proc. Int. Workshop on Cool Interactions, Heidelberg, Germany, 2002.
    Interactions in Ultracold Gases: From Atoms to Molecules. M. Weidemüller, C. Zimmermann (eds.) Wiley-VCH, Weinheim 2005
  • Microscopic theory of atom-molecule oscillations in a Bose-Einstein condensate
    By T. Köhler, T. Gasenzer, and K. Burnett,
       (1: University of Oxford, UK), Sep 2002. 18 pp., 20 figs.
    Published in Phys. Rev. A 67: 013601, 2003
       Abstract    Full Text: [ PDF (362 kB) ]   
       arXiv:cond-mat/0209100 [Abstract, PDF, Other Formats]

  • Limitations of squeezing due to collisional decoherence in Bose-Einstein condensates
    By T. Gasenzer,
       (Univ. of Oxford, UK), Feb 2002. 17 pp., 3 figs.
    Published in J. Phys. B: At. Mol. Opt. Phys. 35: 2337, 2002
       Abstract    Full Text: [ PDF (72 kB) ]   
       arXiv:quant-ph/0202012 [Abstract, PDF, Other Formats]

  • Limitations of light delay and storage times in electromagnetically induced transparency experiments with condensates
    By D.C. Roberts, T. Gasenzer, and K. Burnett,
       (Univ. of Oxford, UK), Jan 2002. 4 pp., 4 figs.
    Published in Phys. Rev. A 66: 023801, 2002
       Abstract    Full Text: [ PDF (65 kB) ]   
       arXiv:quant-ph/0201062 [Abstract, PDF, Other Formats]

2001

  • Exciting squeezed particles from condensates using Bragg scattering
    By D.C. Roberts, T. Gasenzer, and K. Burnett,
       (Univ. of Oxford, UK), Jan 2002. 5 pp., 2 figs.
    Published in J. Phys. B: At. Mol. Opt. Phys. 35: L113, 2002
       Abstract    Full Text: [ PDF (100 kB) ]   
       arXiv:quant-ph/0106060 [Abstract, PDF, Other Formats]

  • Limitations of entanglement between photons and atoms coupled out from a Bose-Einstein condensate
    By T. Gasenzer, D.C. Roberts, and K. Burnett,
       (Univ. of Oxford, UK), Jun 2001. 4 pp., 3 figs.
    Published in Phys. Rev. A 65: 021605(R), 2002
       Abstract    Full Text: [ PDF (72 kB) ]   
       arXiv:quant-ph/0106005 [Abstract, PDF, Other Formats]

1999

  • Large parity violating effects in atomic dysprosium with nearly degenerate Floquet eigenvalues
    By T. Gasenzer and O. Nachtmann,
       (Univ. of Heidelberg, Germany), Sep 1999. HD-THEP-99-21, 29 pp.
    Published in Eur. Phys. J. D 12: 95, 2000
       Abstract    Full Text: [ PDF (339 kB) ]   
       arXiv:hep-ph/9909358 [Abstract, PDF, Other Formats]

1998

  • Parity violating energy shifts in atoms, I
    By D. Bruß, T. Gasenzer and O. Nachtmann,
       (Univ. of Heidelberg, Germany), Feb 1998. HD-THEP-97-36, 71 pp.
    Published in Eur. Phys. J. D direct 2: 1, 1999
       Abstract    Full Text: [ PDF (815 kB) ]   
       arXiv:hep-ph/9802317 [Abstract, PDF, Other Formats]

1997

  • New observables for parity violation in atoms: Energy shifts in external electric fields
    By D. Bruß, T. Gasenzer, and O. Nachtmann,
       (Univ. of Heidelberg, Germany), Oct 1997. HD-THEP-97-52, 29 pp.
    Published in Phys. Lett. A 239: 81, 1998
       Abstract    Full Text: [ PDF (115 kB) ]   
       arXiv:hep-ph/9710461 [Abstract, PDF, Other Formats]

1995

  • Effective Hamiltonian for scalar theories in the Gaussian approximation
    By H.W.L. Naus, T. Gasenzer, and H.J. Pirner,
       (ITP, Univ. of Heidelberg, Germany), Jul 1995. HD-TVP-95-11, 32 pp.
    Published in Annalen der Physik 6: 287, 1997
       Abstract    Full Text: [ PDF (2.8 MB) ]   
       arXiv:hep-ph/9507357 [Abstract, PDF, Other Formats]

Parity violation in atoms

  • Metastable states of hydrogen: their geometric phases and flux densities
    By T. Gasenzer, O. Nachtmann, and M.-I. Trappe,
       (ITP, Univ. of Heidelberg, Germany; and EMMI Darmstadt, Germany), Aug 2011. 28 pp., 12 figs.
    Published in Eur. Phys. J. D 66: 113, 2012
       Abstract    Full Text: [ PDF (588.6 kB) ]   
       arXiv:1107.6006 [physics.atom-ph] [Abstract, PDF, Other Formats]

  • Parity Violation in Hydrogen and Longitudinal Atomic Beam Spin Echo I
    By T. Bergmann, T. Gasenzer, M. DeKieviet, O. Nachtmann, and M.-I. Trappe,
       (Univ. of Heidelberg, Germany), Mar 2008. 27 pp., 10 figs.
    Published in Eur. Phys. J. D 54: 551, 2009
       Abstract    Full Text: [ PDF (564 kB) ]   
       arXiv:0811.1460 [physics.atom-ph] [Abstract, PDF, Other Formats]

  • Metastable states, the adiabatic theorem and parity violating geometric phases II
    By T. Bergmann, T. Gasenzer, and O. Nachtmann,
       (Univ. of Heidelberg, Germany), Mar 2007. 63 pp., 8 figs., 10 tables
    Published in Eur. Phys. J. D 45: 211, 2007
       Abstract    Full Text: [ PDF (742 kB) ]   
       arXiv:physics/0703276 [Abstract, PDF, Other Formats]

  • Metastable states, the adiabatic theorem and parity violating geometric phases I
    By T. Bergmann, T. Gasenzer, and O. Nachtmann,
       (Univ. of Heidelberg, Germany), Mar 2007. 30 pp.
    Published in Eur. Phys. J. D 45: 197, 2007
       Abstract    Full Text: [ PDF (211 kB) ]   
       arXiv:physics/0703275 [Abstract, PDF, Other Formats]

  • Large parity violating effects in atomic dysprosium with nearly degenerate Floquet eigenvalues
    By T. Gasenzer and O. Nachtmann,
       (Univ. of Heidelberg, Germany), Sep 1999. HD-THEP-99-21, 29 pp.
    Published in Eur. Phys. J. D 12: 95, 2000
       Abstract    Full Text: [ PDF (339 kB) ]   
       arXiv:hep-ph/9909358 [Abstract, PDF, Other Formats]

  • Parity violating energy shifts in atoms, I
    By D. Bruß, T. Gasenzer and O. Nachtmann,
       (Univ. of Heidelberg, Germany), Feb 1998. HD-THEP-97-36, 71 pp.
    Published in Eur. Phys. J. D direct 2: 1, 1999
       Abstract    Full Text: [ PDF (815 kB) ]   
       arXiv:hep-ph/9802317 [Abstract, PDF, Other Formats]

  • New observables for parity violation in atoms: Energy shifts in external electric fields
    By D. Bruß, T. Gasenzer, and O. Nachtmann,
       (Univ. of Heidelberg, Germany), Oct 1997. HD-THEP-97-52, 29 pp.
    Published in Phys. Lett. A 239: 81, 1998
       Abstract    Full Text: [ PDF (115 kB) ]   
       arXiv:hep-ph/9710461 [Abstract, PDF, Other Formats]

Hamiltonian quantum field theory

  • Effective Hamiltonian for scalar theories in the Gaussian approximation
    By H.W.L. Naus, T. Gasenzer, and H.J. Pirner,
       (ITP, Univ. of Heidelberg, Germany), Jul 1995. HD-TVP-95-11, 32 pp.
    Published in Annalen der Physik 6: 287, 1997
       Abstract    Full Text: [ PDF (2.8 MB) ]   
       arXiv:hep-ph/9507357 [Abstract, PDF, Other Formats]

Physics Education

  • A computer controlled pendulum with position readout
    By H. Hauptfleisch, T. Gasenzer, K. Meier, O. Nachtmann, and J. Schemmel,
       (Univ. of Heidelberg, Germany), May 2009. 9 pp., 9 figs.
    Published in Am. J. Phys. 78: 555, 2010
       Abstract    Full Text: [ PDF (2.2 MB) ]   
       arXiv:0905.2015 [physics.ed-ph] [Abstract, PDF, Other Formats]

Conference proceedings