BEGIN:VCALENDAR METHOD:PUBLISH PRODID:www-physik-nat-fau-de//Events//DE VERSION:2.0 BEGIN:VEVENT SUMMARY:Physikalisches Kolloquium: Prof. Dr. John Goold - A unificatio n of Mpemba effects: classical and quantum UID:040000008200E00074C5B7101A82E00800000000C028F253F73CDC010000000000 00000010000000BEB060FEC9762C43927071AB32719CD2 DESCRIPTION:Titel: A unification of Mpemba effects: classical and quan tum Abstract: The Mpemba effect originally referred to the observation that\, under certain thermalizing dynamics\, initially hotter samples can cool faster than colder ones. This effect has since been generali zed to other anomalous relaxation behaviours even beyond classical dom ains\, such as symmetry restoration in quantum systems. This talk will focus on the background to the phenomena and explain tools that can b e used to see many of these observation under the same lens using tool s from open quantum systems and quantum information theory.t.b.a. Spre cher / Speaker: Prof. Dr. John Goold\, Trinity College Dublin Kontakt / Contact: Prof. Dr. Daniele Fausti DTSTART:20251210T113000Z DTEND:20251210T123000Z LOCATION:Hörsaal A\, Staudtstr. 5\, 91058 Erlangen DTSTAMP:20260307T174710Z END:VEVENT BEGIN:VEVENT SUMMARY:Physikalisches Kolloquium: Dr. Wolfgang Wieland - On the Light Cone Structure of Quantum Spacetime Geometry UID:040000008200E00074C5B7101A82E00800000000A01E3455F73CDC010000000000 00000010000000BEB060FEC9762C43927071AB32719CD2 DESCRIPTION:Titel: On the Light Cone Structure of Quantum Spacetime Ge ometry Abstract: In Einstein’\;s theory of general relativity\, t he causal structure of spacetime is itself dynamical. Causality is enc oded into the geometry of light cones that bend under the influence of gravity. Quantum theory\, on the other hand\, tells us that nature is intrinsically probabilistic. A sharply defined causal structure\, as it appears in classical general relativity\, contradicts quantum theor y. A more general framework is needed. This colloquium outlines a rese arch programme in quantum gravity to develop a mathematical understand ing of the causal structure at the quantum level. This is\, in fact\, a problem common to different approaches to quantum gravity\, from hol ography\, to the perturbative S-matrix approach and loop quantum gravi ty. After a brief introduction into the conceptual aspects of the topi c\, several recent results on this frontier will be presented. First\, the construction of physical observables using the light cone geometr y is explained. Then\, building upon earlier results in loop quantum g ravity\, the description is taken to the quantum level. Finally\, the talk presents recent developments on how a fundamental quantum discret eness of geometry can alter the spectrum of highly luminous gravitatio nal wave events. The talk is based on arXiv:arXiv:2504.10802\,2402.125 78\, 2401.17491\, 2104.05803. Sprecher / Speaker: Dr. Wolfgang Wieland (Heisenberg Fellow\, FAU) Kontakt / Contact: Department Physik\, Prof . Dr. K. Giesel DTSTART:20251217T113000Z DTEND:20251217T123000Z LOCATION:Hörsaal A\, Staudtstr. 5\, 91058 Erlangen DTSTAMP:20260307T174710Z END:VEVENT BEGIN:VEVENT SUMMARY:Physikalisches Kolloquium: Johannes Zeiher - Understanding\, c ontrolling and creating many-body systems atom by atom UID:040000008200E00074C5B7101A82E008000000007005E957F73CDC010000000000 00000010000000BEB060FEC9762C43927071AB32719CD2 DESCRIPTION:Titel: Understanding\, controlling and creating many-body systems atom by atom Abstract: Microscopic control and readout of indi vidual quanta has been one of the driving forces behind advances in qu antum science and technology in recent years\, leading to spectacular breakthroughs across quantum simulation\, quantum computing\, quantum optics\, and quantum metrology. In my talk\, I will present recent res ults on quantum-gas microscopy of many-body systems both in and out of equilibrium. In particular\, I will discuss an experiment demonstrati ng strongly constrained out-of-equilibrium transport and the emergence of Hilbert space fragmentation in two-dimensional tilted Hubbard syst ems. In the second part of my talk\, I will introduce a hybrid experim ental platform based on the alkaline-earth atom strontium. By directly loading thousands of individually addressable atoms from a magneto-op tical trap into an optical lattice\, we achieve high-fidelity\, low-lo ss imaging and iterative assembly of atom arrays. For applications in quantum computing and simulation\, we encode a qubit in the metastable fine-structure states of strontium\, demonstrating long coherence tim es\, high-fidelity control\, and fast initialization via coherent thre e-photon coupling from the ground state. I will conclude by outlining our ongoing work on a new experimental platform that integrates an opt ical resonator with tweezer-trapped atoms\, enabling novel light-matte r interfaces for quantum simulators and quantum computers. Sprecher / Speaker: Prof. Johannes Zeiher( LMU München & Max Planck Institut fü r Quantenoptik) Kontakt / Contact: Prof. Dr. Michael Hartmann DTSTART:20260107T113000Z DTEND:20260107T123000Z LOCATION:Hörsaal A\, Staudtstr. 5\, 91058 Erlangen DTSTAMP:20260307T174710Z END:VEVENT BEGIN:VEVENT SUMMARY:Physikalisches Kolloquium: Prof. Dr. Christophe Szwaj - Single -shot electro-optic detection of THz pulses UID:040000008200E00074C5B7101A82E00800000000E08FA95BF73CDC010000000000 00000010000000BEB060FEC9762C43927071AB32719CD2 DESCRIPTION:Titel: Single-shot electro-optic detection of THz pulses A bstract: t.b.a. Sprecher / Speaker: Prof. Dr. Christophe Szwaj\, Unive rsité de Lille Kontakt / Contact: Prof. Dr. Nicolas Joly DTSTART:20260128T113000Z DTEND:20260128T123000Z LOCATION:Hörsaal A\, Staudtstr. 5\, 91058 Erlangen DTSTAMP:20260307T174710Z END:VEVENT BEGIN:VEVENT SUMMARY:Physikalisches Kolloquium: Prof. Dr. Benoît Ladoux - Active m atter in action: How living cells move\, jostle\, and organize (Antrit tsvorlesung) UID:040000008200E00074C5B7101A82E00800000000D0255859F73CDC010000000000 00000010000000BEB060FEC9762C43927071AB32719CD2 DESCRIPTION:Titel: Active matter in action: How living cells move\, jo stle\, and organize (Antrittsvorlesung) Abstract: t.b.a. Sprecher / Sp eaker: Prof. Dr. Benoît Ladoux\, Max-Planck-Zentrum für Physik und M edizin\, Erlangen Kontakt / Contact: Dekanat/ Prof. Dr. Jürgen Schatz DTSTART:20260114T113000Z DTEND:20260114T123000Z LOCATION:Hörsaal A\, Staudtstr. 5\, 91058 Erlangen DTSTAMP:20260307T174710Z END:VEVENT BEGIN:VEVENT SUMMARY:Physikalisches Kolloquium: Prof. Dr. Francesco Piazza - Non-eq uilibrium as a resource: Non-thermal steady-states of cavity-quantum-m aterials UID:040000008200E00074C5B7101A82E00800000000F06B7D5AF73CDC010000000000 00000010000000BEB060FEC9762C43927071AB32719CD2 DESCRIPTION:Titel: Non-equilibrium as a resource: Non-thermal steady-s tates of cavity-quantum-materials Abstract: Coupling a system to two d ifferent baths can lead to novel phenomena escaping the constraints of thermal equilibrium. In quantum materials inside optical cavities\, t his feature can be exploited as electrons and cavity-photons are easil y pulled away from their mutual equilibrium\, even in the steady state . This offers new routes for a non-invasive control of material proper ties and functionalities. Motivated by recent experimental puzzles ari sing with transition-metal-dichalcogenides inside Fabry-Perot cavities \, we show how the absence of thermal equilibrium between electrons an d photons leads to qualitative modifications of the material’\;s properties in two different ways: 1) the electron distribution shows e nhanced fluctuations near the Fermi surface due to the breaking of det ailed balance\; 2) the scattering between electrons in the steady stat e acquires a genuinely non-thermal component which can for instance en hance the tendency to pair and become superconducting. Sprecher / Spea ker: Prof. Dr. Francesco Piazza\, Universität Augsburg Kontakt / Cont act: Prof. Dr. Daniele Fausti DTSTART:20260121T113000Z DTEND:20260121T123000Z LOCATION:Hörsaal A\, Staudtstr. 5\, 91058 Erlangen DTSTAMP:20260307T174710Z END:VEVENT BEGIN:VEVENT SUMMARY:Physikalisches Kolloquium: Prof. Silke Weinfurtner - Exploring Classical and Quantum Fields in Curved Spacetimes: Lab-Based Investig ations into Black Holes and Early Universe Physics UID:040000008200E00074C5B7101A82E00800000000D059E45CF73CDC010000000000 00000010000000BEB060FEC9762C43927071AB32719CD2 DESCRIPTION:Titel: Exploring Classical and Quantum Fields in Curved Sp acetimes: Lab-Based Investigations into Black Holes and Early Universe Physics Abstract: Exploring the dynamics of the early universe and bl ack holes unveils profound insights into the interplay between general relativity and classical/quantum fields. Important phenomena emerge w hen gravitational and/or field interactions are strong\, and/or when q uantum effects become prominent. Notable examples include Hawking̵ 7\;s proposal on the evaporation of black holes\, Penrose’\;s con jecture on the spin-down of rotating black holes\, and Kofman’\;s proposal on particle production during preheating. Despite their sign ificance\, observing these phenomena directly remains elusive. In this presentation\, I will report on recent advancements in investigating these processes in laboratory experiments involving normal and quantum liquids. Sprecher / Speaker: Prof. Silke Weinfurtner\, University of Nottingham Kontakt / Contact: Prof. Dr. Kristina Giesel DTSTART:20260204T113000Z DTEND:20260204T123000Z LOCATION:Hörsaal A\, Staudtstr. 5\, 91058 Erlangen DTSTAMP:20260307T174710Z END:VEVENT END:VCALENDAR