Physikalisches Kolloquium

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URL to ICS calendar of this seminar

Kirchhoff-Institut für Physik, Otto-Haxel-Hörsaal
Friday 17:15

12.10.2023 17:30
Prof. Kyle Cranmer, Department of Physics, University of Wisconsin - Madison
INF 308, Hörsaal 1
Kolloquium der 51. Heidelberger Graduiertentage - Hans Jensen Invited Lecture
20.10.2023 17:00
Prof. Dr. Peer Fischer, Institute for Molecular Systems Engineering and Advanced Materials, Heidelberg University
KIP, INF 227, Hörsaal 1
Microorganisms can move in complex media, respond to the environment and self-organize. The field of nano- and microrobotics takes inspiration from nature and strives to achieve these functions in synthetic systems. However, building synthetic motors and machines ‘bottom up’ such that they can mimic biological matter and function autonomously or such that they can be controlled externally, is challenging.   more...
27.10.2023 17:00
Prof. Dr. Karl-Heinz Kampert, Astroteilchenphysik, Bergische Universität Wuppertal
KIP, INF 227, Hörsaal 1
Cosmic Rays with energies beyond 1020 eV are regularly observed by the Pierre Auger Observatory covering an area of 3000 km2. They are known to be of extragalactic origin but despite enormous progress being made in recent years, Nature has not fully revealed their sources, yet. However, a simultaneous description of the observed energy spectrum, mass composition and arrival directions suggests powerful nearby Starburst Galaxies as a key contributor -- an observation that is independently supported by multi-messenger observations involving high energy photons and neutrinos. The enormous particle energies arriving at Earth can also be used to probe new particle and fundamental physics and a few examples will be presented.   more...
3.11.2023 17:00
Prof. Dr. Liu Hao Tjeng, Max Planck Institute for Chemical Physics of Solids, Dresden
KIP, INF 227, Hörsaal 1
The search for new quantum materials with novel properties is often focused on materials containing transition-metal, rare-earth and/or actinide elements. The presence of the atomic-like d or f orbitals provides a fruitful playground to generate novel phenomena. The intricate interplay of band formation with the local electron correlation and atomic multiplet effects leads to phases that are nearly iso-energetic, making materials’ properties highly tunable by doping, temperature, pressure or magnetic field. Understanding the behavior of the d and f electrons is essential for designing and controlling novel quantum materials. Therefore, identifying the d or f orbitals that actively participate in the formation of the ground state is crucial. So far, these orbitals have mostly been deduced from optical, X- ray and neutron spectroscopies in which spectra must be analyzed using theory or modelling. This, however, is also a challenge in and of itself, since ab-initio calculations hit their limits due to the many-body nature of the problem.   more...
10.11.2023 17:00
Prof. Dr. Volker Lindenstruth, Frankfurt Institute for Advanced Studies und GSI GmbH, Darmstadt
KIP, INF 227, Hörsaal 1
Emissions from the world's data centers exceed those from air travel. Even when renewable energy sources are used, a lot of waste heat is generated that heats up the environment. Consequently, energy efficiency is of paramount importance. There are three main areas of energy efficiency or Green IT: data center efficiency, computer architecture efficiency, and last but not least, algorithm efficiency.   more...
17.11.2023 17:00
Dr. John C. Mather, National Aeronautics and Space Administration, Goddard Space Flight Center
KIP, INF 227, Hörsaal 1
The James Webb Space Telescope was launched on Dec. 25, 2021, and commissioning was completed in early July 2022. With its 6.5 m golden eye, and cameras and spectrometers covering 0.6 to 28 µm, Webb is already producing magnificent images of galaxies, active galactic nuclei, star-forming regions, and planets. Scientists are hunting for some of the first objects that formed after the Big Bang, the first black holes (primordial or formed in galaxies), and beginning to observe the growth of galaxies, the formation of stars and planetary systems, individual exoplanets through coronography and transit spectroscopy, and all objects in the Solar System from Mars on out.   more...
24.11.2023 17:00
Prof. Dr. Michela Mapelli, Institut fuer Theoretische Astrophysik, Zentrum fuer Astronomie Heidelberg
KIP, INF 227, Hörsaal 1
The number of gravitational-wave detections approaches the 100 mark and starts revealing the big picture of binary black hole populations. Several detected black holes have mass in the lower (2-5 Msun) or upper (~60-120 Msun) mass gap, challenging models of stellar and binary evolution. Furthermore, evidence for unequal-mass systems and non-negligible spin misalignment advocate for unconventional scenarios of binary black hole formation. We recently proposed that the mass function of the LIGO-Virgo black holes evolves with redshift.   more...
1.12.2023 17:00
Prof. Dr. Andrey Surzhykov, Fundamentale Physik für Metrologie, Physikalisch-Technische Bundesanstalt, Braunschweig
KIP, INF 227, Hörsaal 1
A great deal of interest has recently arisen in high-precision atomic physics experiments aimed at searching for New Physics beyond the Standard Model. These experiments became feasible due to outstanding achievements in the field of quantum control of matter and light.   more...
8.12.2023 17:00
Prof. Dr. Christine Selhuber-Unkel, Institute for Molecular Systems Engineering and Advanced Materials (IMSEAM), Heidelberg
KIP, INF 227, Hörsaal 1
Living cells and their environments are examples of highly dynamic matter. For example, intracellular transport is based on diffusion, but also on active transport by molecular motors. Furthermore, the structure of a cell, its chemical content and also its mechanical properties can adapt at the timescale of seconds to minutes to external stimuli. Living cells also dynamically shape their extracellular surroundings. Hence, cells can be regarded as perfect examples of active, dynamic matter and can provide inspiration for shaping novel materials.   more...
15.12.2023 17:00
Prof. Dr. Metin Tolan, Universität Göttingen
INF 308, Hörsaal 1
Bitte beachten: Das Kolloquium findet im Hörsaal 1 in INF 308 statt !!
Jeder kennt James Bond, den smarten Geheimagenten, der von Q mit kleinen Gadgets versorgt wird, um seine Abenteuer zu bestehen. Doch wie viel Realität steckt hinter den Erfindungen von Tüftler Q? Funktionieren die Uhren von 007 wirklich? Wie schafft es Bond immer wieder, tödliche Situationen zu überleben? Kann sich ein Auto wirklich sieben Mal überschlagen? Muss James Bond Physiker sein, damit er seine waghalsigen Stunts überlebt?   more...
12.1.2024 17:00
Dr. Abu Sebastian, Distinguished Research Staff Member & Manager, IBM Research - Zurich
KIP, INF 227, Hörsaal 1
19.1.2024 17:00
Prof. Dr. Winfried Petry, TUM Emeritus of Excellence, Chair for Functional Materials & Emeritus Scientific Director ZWE FRM-II and MLZ, Technische Universität Muenchen
KIP, INF 227, Hörsaal 1
Festkolloquium anlässlich des 80. Geburtstags von Prof. Dr. Dirk Dubbers
26.1.2024 17:00
Prof. Dr. Belina von Krosigk, Kirchhoff-Institut für Physik, Universität Heidelberg
KIP, INF 227, Hörsaal 1
2.2.2024 17:00
Professor Dame Clare Grey, Department of Chemistry, University of Cambridge, UK
KIP, INF 227, Hörsaal 1