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VERSION:2.0
PRODID:-//Nonequilibrium quantum and statistical physics - ECPv4.5.3//NONSGML v1.0//EN
CALSCALE:GREGORIAN
METHOD:PUBLISH
X-WR-CALNAME:Nonequilibrium quantum and statistical physics
X-ORIGINAL-URL:http://chaos.fmf.uni-lj.si
X-WR-CALDESC:Events for Nonequilibrium quantum and statistical physics
BEGIN:VEVENT
DTSTART;TZID=UTC+0:20170713T140000
DTEND;TZID=UTC+0:20170713T160000
DTSTAMP:20180223T200015
CREATED:20170712T052912Z
LAST-MODIFIED:20170725T044050Z
UID:406-1499954400-1499961600@chaos.fmf.uni-lj.si
SUMMARY:Szabolcs Vajna: Replica resummation of the Baker-Campbell-Hausdorff series
DESCRIPTION:We developed a novel perturbative expansion for the effective Hamiltonian governing the dynamics of periodically kicked systems in the small parameter of the kick strength. The expansion is based on the replica trick\, and is formally equivalent to the infinite resummation of the Baker-Campbell-Hausdorff series in the non-kicked Hamiltonian\, while taking finite order terms in the kicks. As an application of the replica expansion\, we study the heating properties of a periodically kicked spin chain. We demonstrate that even away from the high frequency driving limit\, the heating rate is at least stretched exponentially suppressed in the kick strength. This leads to a long pre-thermal regime\, where the dynamics is governed by the effective Hamiltonian obtained from the expansion.\n\n\n* Szabolcs Vajna\, Faculty of Mathematics and Physics\, University of Ljubljana
URL:http://chaos.fmf.uni-lj.si/?tribe_events=szabolcs-vajna-replica-resummation-of-the-baker-campbell-hausdorff-series
LOCATION:Jadranska 19\, Ljubljana\, Slovenia
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