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TZID:Europe/Paris
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BEGIN:VEVENT
UID:0-583@lptms.universite-paris-saclay.fr
DTSTART:20180227T110000Z
DTEND:20180227T113000Z
DTSTAMP:20180215T095913Z
URL:http://www.lptms.universite-paris-saclay.fr/seminars/seminaire-du-lptm
 s-andrea-de-luca/
SUMMARY:Séminaire du LPTMS: Andrea de Luca - LPTMS\, salle 201\, 2ème ét
 age\, Bât 100\, Campus d'Orsay - 27 Fév 18 11:00
DESCRIPTION:Solution of a minimal model for many-body quantum chaos\nAndrea
  de Luca (Rudolf Peierls Centre for Theoretical Physics\, Oxford Universit
 y\, UK)\nI present a minimal model for quantum chaos in a spatially extend
 ed many-body system. It consists of a chain of sites with nearest-neighbou
 r coupling under Floquet time evolution. Quantum states at each site span 
 a q-dimensional Hilbert space and time evolution for a pair of sites is ge
 nerated by a q2×q2 random unitary matrix. The Floquet operator is specifi
 ed by a quantum circuit\, in which each site is coupled to its neighbour o
 n one side during the first half of the evolution period\, and to its neig
 hbour on the other side during the second half of the period. I will intro
 duce a diagrammatic formalism useful to average the many-body dynamics ove
 r realisations of the random matrices. This approach leads to exact expres
 sions in the large-q limit and sheds light on the universality of random m
 atrices in many-body quantum systems and the ubiquitous entanglement growt
 h in out-of-equilibrium dynamics.
LOCATION:LPTMS\, salle 201\, 2ème étage\, Bât 100\, Campus d'Orsay\, 15 
 Rue Georges Clemenceau\, Orsay\, 91405\, France
GEO:48.698185;2.181768
X-APPLE-STRUCTURED-LOCATION;VALUE=URI;X-ADDRESS=15 Rue Georges Clemenceau\,
  Orsay\, 91405\, France;X-APPLE-RADIUS=100;X-TITLE=LPTMS\, salle 201\, 2è
 me étage\, Bât 100\, Campus d'Orsay:geo:48.698185,2.181768
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