Entanglement Transition in a Monitored Free-Fermion Chain: From Extended Criticality to Area Law

• Published in: Physical review letters Vol. 126; no. 17; p. 170602
• Main Authors: Alberton, O, Buchhold, M, Diehl, S
• Format: Journal Article
• Language: English
• Published: United States 30.04.2021

We analyze the quantum trajectory dynamics of free fermions subject to continuous monitoring. For weak monitoring, we identify a novel dynamical regime of subextensive entanglement growth, reminiscent of a critical phase with an emergent conformal invariance. For strong monitoring, however, the dyna...