Bounds on the entanglement entropy by the number entropy in non-interacting fermionic systems

Entanglement in a pure state of a many-body system can be characterized by the R\'enyi entropies $S^{(\alpha)}=\ln\textrm{tr}(\rho^\alpha)/(1-\alpha)$ of the reduced density matrix $\rho$ of a subsystem. These entropies are, however, difficult to access experimentally and can typically be deter...

Full description

Bibliographic Details
Main Author: Maximilian Kiefer-Emmanouilidis, Razmik Unanyan, Jesko Sirker, Michael Fleischhauer
Format: Article
Language:English
Published: SciPost 2020-06-01
Series:SciPost Physics
Online Access:https://scipost.org/SciPostPhys.8.6.083

Similar Items