|author(s)||F. Cattani, C. Gross, M.K. Oberthaler, J. Ruostekoski|
|title||Measuring and engineering entropy and spin squeezing in weakly linked Bose-Einstein condensates|
|Keywords||Measuring and engineering entropy, spin squeezing, Bose-Einstein condensates|
|source||NEW JOURNAL OF PHYSICS Volume: 15, JUN 26 2013, 8 pages , arXiv:1302.3040|
We propose a method to infer the single-particle entropy of bosonic atoms in an optical lattice and to study the local evolution of entropy, spin squeezing, and entropic inequalities for entangle- ment detection in such systems. This method is based on experimentally feasible measurements of non-nearest-neighbour coherences. We study a specific example of dynamically controlling atom tunneling between selected sites and show that this could potentially also improve the metrologically relevant spin squeezing.
|URL||Measuring and engineering entropy and spin squeezing in weakly linked Bose-Einstein condensates,F. Cattani, C. Gross, M.K. Oberthaler, J. Ruostekoski|