Pantheon SEMPARIS Le serveur des séminaires parisiens Paris

Status Confirmed
Seminar Series FORUM-ENS
Subjects cond-mat.stat-mech
Date Thursday 1 June 2023
Time 12:30
Institute LPENS
Seminar Room L378
Speaker's Last Name Tilloy
Speaker's First Name Antoine
Speaker's Email Address
Speaker's Institution Mines ParisTech, INRIA
Title Variational method for low dimensional quantum/statistical field theories
Abstract I will explain why the variational method is particularly well suited to solve non-integrable quantum (statistical) field theories in 1+1 (2) dimensions. I will then specialize to a variational ansatz obtained from a continuum limit of tensor network states, which, with an additional twist, allows to find N-point correlation functions to essentially arbitrary precision for a large class of bosonic QFT/SFT. I will ultimately discuss the tremendous difficulties in extending this approach to higher dimensions.
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