BPK im Magnus-Haus
Physik in Berlin
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Berliner Physikalisches Kolloquium
im Magnus-Haus

Das Berliner Physikalische Kolloquium (BPK) im Magnus-Haus wurde 1998 von der Physikalischen Gesellschaft zu Berlin initiiert und wird in Gemeinschaft mit der Freien Universität Berlin, der Humboldt-Universität zu Berlin, der Technischen Universität Berlin und der Universität Potsdam mit Unterstützung durch die Wilhelm und Else Heraeus-Stiftung durchgeführt. Es findet - außer in den Monaten März, August und September - an jedem ersten oder zweiten Donnerstag im Monat statt.

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Berliner Physikalisches Kolloquium
im Wintersemester 2020/2021

Im Berliner Physikalische Kolloquium im Magnus-Haus wird

Prof. Dr. Giovanna Morigi,

Theoretische Physik, Fachrichtung Physik, Universit├Ąt des Saarlandes,


Vortragstitel: Quantum crystals of photons and atoms 
Termin: Donnerstag, 7. Januar 2021, 18:30 Uhr 
Moderation: Christiane Koch, Freie Universit├Ąt Berlin 
Ort: Magnus-Haus
Am Kupfergraben 7
10117 Berlin 


The formation of patterns in nature is often determined by the interplay of noise and interactions of different range. Numberless examples are encountered in everyday life and can be described classically. In the nano-world, where the laws of quantum physics are dominant, our understanding is still in its infancy. The dynamics of a quantum many-body system subject to interactions, dissipation and driving forces poses severe theoretical challenges. Understanding the quantum dynamics of these pattern formation processes is an important question of fundamental research and a crucial issue for quantum technological applications, where one aims at robust quantum coherent dynamics in systems of mesoscopic size. A promising and flourishing approach to tackle these questions is offered by the study of ultracold ensembles of atoms coupled to the light fields of high-finesse optical cavities. In these systems quantum structures of photons and atoms emerge from a quantum nonlinear interaction between scattering particles in the presence of noise and dissipation. The inter-atomic interactions are here mediated by multiple scattering of cavity photons and have a long-range character, which makes these systems a unique platform for shedding light into dynamics predicted in other fields of physics, ranging from nuclear physics, nonlinear dynamics, and astrophysics. In this talk I will discuss the basic physical mechanisms leading to crystalline structures of photons and atoms and will review insights gained by theoretical and experimental studies of these systems.

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