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SUMMARY:Metastability in open quantum dynamics - Dr Katarzyna Macieszczak\
 , University of Nottingham
DTSTART:20180125T141500Z
DTEND:20180125T151500Z
UID:TALK96241@talks.cam.ac.uk
CONTACT:Austen Lamacraft
DESCRIPTION:In this talk we discuss metastability in open quantum systems 
 with Markovian dynamics. Metastability is a common phenomenon in which the
  system's initial relaxation into long-lived metastable states is followed
  by the decay to a true stationary state at much longer times. For Markovi
 an dynamics this separation of timescales necessarily requires a splitting
  in the spectrum of the dynamics generator. We show how to exploit this sp
 litting in order to unfold the structure of the metastable manifold and th
 e effective dynamics within [1]. We illustrate the method by exploring lon
 g-lived features of a quantum Ising chain with dissipation [2] and of a qu
 antum glass model introduced in [3].\n \nReferences:\n[1] K. Macieszczak\,
  M. Guta\, I. Lesanovsky\, J. P. Garrahan\, Phys. Rev. Lett. 116\, 240404 
 (2016).\n[2] D. C. Rose\, K. Macieszczak\, I. Lesanovsky\, J. P. Garrahan\
 , Phys. Rev. E 94\, 052132 (2016).\n[3] B. Olmos\, I. Lesanovsky\, and J. 
 P. Garrahan\, Phys. Rev. Lett. 109\, 020403 (2012).
LOCATION:TCM Seminar Room\, Cavendish Laboratory
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