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PRODID:-//Nonequilibrium quantum and statistical physics - ECPv4.6.21//NONSGML v1.0//EN
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X-WR-CALNAME:Nonequilibrium quantum and statistical physics
X-ORIGINAL-URL:https://chaos.fmf.uni-lj.si
X-WR-CALDESC:Events for Nonequilibrium quantum and statistical physics
BEGIN:VEVENT
DTSTART;TZID=Europe/Ljubljana:20180227T140000
DTEND;TZID=Europe/Ljubljana:20180227T160000
DTSTAMP:20180817T205513
CREATED:20180226T085026Z
LAST-MODIFIED:20180226T085308Z
UID:613-1519740000-1519747200@chaos.fmf.uni-lj.si
SUMMARY:Maram Akila: Getting a Foot into Many-Body Quantum Chaos
DESCRIPTION:In the limit of small ħ\, e.g. short wavelengths\, semi-classical theory provides a connection between the spectrum of a quantum mechanical system and the periodic orbits of its classical counter part. While this is well established for systems with few degrees of freedom the extension to many-body systems is challenging as the system dimension N turns into an additional large parameter. For a long chain of interacting kicked tops short time spectral information may be obtained using a duality relation between the temporal and spatial evolution. This allows a direct comparison to the classical periodic orbits of the system. It reveals that this class of system possesses non-isolated orbit manifolds whose contributions to the trace formula are strongly dominant. For large N their presence leads to remarkably strong spectral fluctuations\, which are not recovered by conventional semi-classical theory. \n* Maram Akila\, Universität Duisburg-Essen \n\n
URL:https://chaos.fmf.uni-lj.si/?tribe_events=maram-akila-getting-a-foot-into-many-body-quantum-chaos
LOCATION:Jadranska 19\, Ljubljana\, Slovenia
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