Nonlinear Sigma Models for Monitored Dynamics of Free Fermions

Nonlinear Sigma Models for Monitored Dynamics of Free Fermions

We derive field theory descriptions for measurement-induced phase transitions in free fermion systems. We focus on a multiflavor Majorana chain, undergoing Hamiltonian evolution with continuous monitoring of local fermion parity operators. Using the replica trick, we map the dynamics to the imaginar...

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Bibliographic Details
Main Authors:	Michele Fava, Lorenzo Piroli, Tobias Swann, Denis Bernard, Adam Nahum
Format:	Article
Language:	English
Published:	American Physical Society 2023-12-01
Series:	Physical Review X
Online Access:	http://doi.org/10.1103/PhysRevX.13.041045

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