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UID:DSC-20794
DTSTART;TZID=Europe/Berlin:20240416T145000
SEQUENCE:1713245815
TRANSP:OPAQUE
DTEND;TZID=Europe/Berlin:20240416T162000
URL:https://dresden-science-calendar.org/calendar/en/detail/20794
LOCATION:TUD\,    
SUMMARY:Physics Colloquium / Prof. Peter Schlagheck: Quantum simulation of 
 chaos
CLASS:PUBLIC
DESCRIPTION:Speaker: \nInstitute of Speaker: \nTopics:\nWillkommen\n Locati
 on:\n  Name: TUD ()\n  Street:   \n  City:  \n  Phone: \n  Fax: \nDescript
 ion: <p>Event announcement as pdf-Download (https://tu-dresden.de/mn/phys
 ik/ressourcen/dateien/physikalisches-kolloquium/2024-04-16-Phys_Kolloq-Sch
 lagheck-SoSe2024.pdf).</p>  <p><strong>Abstract</strong>: The second quan
 tum revolution has given birth to a number of novel tools and techniques t
 hat are about to have some effect on our everyday life in the near future.
  Among those new tools figures quantum simulation\, i.e.\, the possibility
  to better understand the quantum dynamics in a complicated system (e.g. i
 n a biochemical context) by emulating the essential ingredients of that sy
 stem within a different quantum system that is under very good experimenta
 l control. State-of-the-art platforms for quantum simulations\, using phot
 ons\, trapped ions\, ultracold atoms\, or superconducting qubits\, share t
 he common feature that they are very complex and involve many degrees of f
 reedom. Quite unsurprisingly\, pioneering studies with such quantum simula
 tion platforms were therefore focused on obtaining a better understanding 
 of the generic properties of complex quantum many-body systems and their r
 elation with the notions of integrability or chaos. In my talk\, I will ad
 dress these quantum signatures of chaos in the specific context of ultraco
 ld bosonic atoms confined within optical lattices\, theoretically describe
 d by Bose-Hubbard systems which feature a well-defined classical counterpa
 rt. I will specifically focus on deviations from the quantum-classical cor
 respondence in this context\, owing to many-body quantum interference effe
 cts. Those deviations can be rather subtle\, if induced by the presence of
  discrete symmetries or time-reversal invariance\, or rather important\, a
 s exemplified by scars\, i.e.\, eigenstates that are strongly localized in
  phase space and thereby defy thermalisation despite global chaos. Being a
 ware of these generic phenomena will be of key importance for the concepti
 on and handling of efficient quantum simulators.</p>  <p><strong>Short bio
 </strong>: 1996-1999: PhD in physics at TU München / 1999-2001: Postdoc
  at Université Paris Sud / 2001- 2008: Assistant position (including hab
 ilitation) at Universität Regensburg / 2008-2009: Guest professor at Uni
 versity of Lund (Sweden) / since 2009: Faculty member at Université de L
 iège.</p>
DTSTAMP:20260619T010800Z
CREATED:20240413T054011Z
LAST-MODIFIED:20240416T053655Z
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