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DTSTAMP:20260424T143422Z
UID:1710153000@ist.ac.at
DTSTART:20240311T113000
DTEND:20240311T123000
DESCRIPTION:Speaker: Dieter Jaksch\nhosted by Maksym Serbyn\nAbstract: The 
 assumption that physical systems relax to a stationary state in the long-t
 ime limit underpins statistical physics and much of our intuitive understa
 nding of scientific phenomena. For isolated systems\, this follows from th
 e eigenstate thermalization hypothesis. When an environment is present the
  expectation is that all of phase space is explored\, eventually leading t
 o stationarity.In this talk\, I will identify and discuss simple and gener
 ic conditions for dissipation to prevent a quantum many-body system from e
 ver reaching a stationary state [1]. These “dynamical symmetries” go 
 beyond dissipative quantum state engineering approaches towards controllab
 le long-time non-stationary dynamics typically associated with macroscopic
  complex systems. The resulting coherent and oscillatory evolution constit
 utes a dissipative version of a quantum time-crystal.I will show how such 
 dissipative dynamics can be engineered and studied with fermionic ultracol
 d atoms in optical lattices using current technology. Furthermore\, I disc
 uss how dissipation leads to long-range quantum coherence\, complexity\, a
 nd η-pairing indicating a superfluid state in these setups [2] and the p
 otential connection to driving induced superconductivity [3\, 4]. Finally
 \, I will connect these ideas to a more general theory of synchronization 
 in quantum systems [5] and quantum dynamics on graphs with long-ranged int
 eractions [6]References1. B. Bua\, J. Tindall\, and D. Jaksch\, Complex co
 herent quantum many-body dynamics through dissipation\, Nature Communicati
 ons 10\, 1730 (2019)2. J. Tindall\, B. Bua\, J. R. Coulthard\, and D. Jaks
 ch\, Heating-Induced Long-Range η-Pairing in the Hubbard Model\,  Physic
 al Review Letters 123\,  030603 (2019)3. J. Tindall\, F. Schlawin\, M. Bu
 zzi\, D. Nicoletti\, J. R. Coulthard\, H. Gao\, A. Cavalleri\, M. Sentef a
 nd D. Jaksch\, Dynamical Superconductivity in a Frustrated Many-Body Syste
 m\, Physical Review Letters 125\,  137001 (2020)4. J. Tindall\, F. Schlaw
 in\, M. Sentef and D. Jaksch\, Analytical Solution for the Steady States o
 f the Driven Hubbard model\, Phys. Rev. B 103\, 035146 (2021)5. B. Buca\, 
 C. Booker and D. Jaksch\, Algebraic Theory of Quantum Synchronization and 
 Limit Cycles under Dissipation\, SciPost Phys. 12\, 097 (2022).6. Joseph T
 indall\, Amy Searle\, Abdulla Alhajri\, Dieter Jaksch\, Quantum Physics in
  Connected Worlds\, Nature Communications 13\, 7445 (2022).
LOCATION:Raiffeisen Lecture Hall\, ISTA
ORGANIZER:maria.arias.sutil@ista.ac.at
SUMMARY:Dieter Jaksch: Dissipation induced non-stationary complex quantum d
 ynamics
URL:https://talks-calendar.ista.ac.at/events/4243
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