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SUMMARY:Thermal Schrödinger Equation:  Efficient Tool for Simulation of M
 any-Body Quantum Dynamics at Finite Temperature
DTSTART:20191001T120000
DTEND:20191001T130000
DTSTAMP:20260410T222837Z
UID:b53761a73eed3e0e7f3c1f3cb2e5d06a16a40663e820f5cbd1c152ac
CATEGORIES:Conferences - Seminars
DESCRIPTION:Maxim F. Gelin\nDepartment of Chemistry\, Technische Universit
 ät München\, D-85747 Garching\, Germany\nMaxim F. Gelin\nDepartment of C
 hemistry\, Technische Universität München\, D-85747 Garching\, Germany\n
  \nI will give a brief overview of a recently developed wave-function-bas
 ed method for the simulation of quantum dynamics of systems with many degr
 ees of freedom at finite temperature. The method is inspired by the ideas 
 of Thermo Field Dynamics (TFD). As TFD\, the method is based on the doubli
 ng of the system’s degrees of freedom and thermal Bogoliubov transformat
 ion. As distinct from TFD\, the method implements the doubling of thermali
 zed degrees of freedom only\, and relies upon the explicitly constructed g
 eneralized thermal Bogoliubov transformation\, which is not restricted to 
 fermionic and bosonic degrees of freedom. The solution of TFD dynamic equa
 tions is based on a novel technique for the propagation of Tensor Trains (
 Matrix Product States). The methodology is illustrated by the simulation o
 f the exciton dynamics in the Fenna-Mathews-Olsen complex using a realisti
 c structured spectral density to model the electron-phonon interaction. Th
 e results of the simulations highlight the effect of specific vibrational 
 modes on the exciton dynamics and energy transfer process\, as well as cal
 l for careful modeling of electron-phonon couplings.\n 
LOCATION:BCH 3118 https://plan.epfl.ch/?room==BCH%203118
STATUS:CONFIRMED
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