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DTSTART:20260329T030000
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DTSTAMP:20260415T073805Z
UID:1779786000@ist.ac.at
DTSTART:20260526T110000
DTEND:20260526T120000
DESCRIPTION:Speaker: Jie Ren\nhosted by Maksym Serbyn\nAbstract: Abstract: 
 Understanding how complex systems transition between order and chaos is a 
 central challenge of nonequilibrium physics. While weak perturbations of c
 lassical integrable systems give rise to a mixed phase space of coexisting
  regular and chaotic trajectories\, analogous behavior in interacting quan
 tum many-body systems has remained elusive. Here we develop and experiment
 ally implement a hybrid quantum–classical feedback protocol that autonom
 ously discovers and stabilizes long-lived regular trajectories in a superc
 onducting quantum processor. Each iteration combines short-time quantum ev
 olution with classical optimization that projects the dynamics back onto a
  low-entanglement variational manifold\, effectively distilling coherence 
 from chaotic evolution. The stabilized trajectories reveal a quantum many-
 body mixed phase space emerging from nonlinear variational dynamics\, with
 out a direct analogue in classical or few-body quantum systems. Our result
 s establish a versatile framework for algorithmic discovery and control of
  coherent dynamics previously inaccessible to experiment. 
LOCATION:Office Bldg West / Ground floor / Heinzel Seminar Room (I21.EG.101
 )\, ISTA
ORGANIZER:Stephanie.Dolot@ist.ac.at
SUMMARY:Jie Ren: “Quantum many-body mixed phase space revealed by hybrid 
 feedback control"
URL:https://talks-calendar.ista.ac.at/events/6345
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