Error message

Notice: Undefined offset: 0 in include() (line 35 of /home/it/www/www-icts/sites/all/themes/riley/templates/views/views-view-fields--related-file-field-collection-view.tpl.php).
Archak Purkayastha (Trinity College Dublin, Ireland)
Date & Time
Thu, 28 January 2021, 15:00 to 16:30
Online seminar

Obtaining dynamics of an interacting quantum many-body system connected to multiple baths initially at different, finite, temperatures and chemical potentials is a challenging problem. This I       s due to both the prevalence of strong correlations in the system and the infinite nature of the baths. Here we show that it is possible to accurately simulate the dynamics a wide class of such open quantum many-body systems with finite and rather small-sized baths, when the baths are refreshed to their original initial states periodically after a carefully chosen time interval. We show how this method, when combined with tensor network techniques, significantly simplifies the dynamics by allowing a continuous time non-Markovian dynamics to be mapped to a discrete time Markov process. We call this method: Periodically Refreshed Baths (PReB). We demonstrate that this method provides relatively easy access to numerically exact non-Markovian dynamics of open quantum many-body systems in parameter regimes where other numerical and analytical methods are known to struggle.

Please click on the link to join the meeting

Meeting ID: 986 1151 4187

Passcode: 063478