3 papers
quant-ph2024
The Fate of Entanglement
Gilles Parez, William Witczak-Krempa
Quantum entanglement manifests itself in non-local correlations between the constituents of a system. In its simplest realization, a measurement on one subsystem is affected by a p…
cond-mat.str-el2023
Entanglement negativity between separated regions in quantum critical systems
Gilles Parez, William Witczak-Krempa
We study the entanglement between disjoint subregions in quantum critical systems through the lens of the logarithmic negativity. We work with systems in arbitrary dimensions, incl…
hep-th2023
Reflected entropy and computable cross-norm negativity: Free theories and symmetry resolution
Clément Berthiere, Gilles Parez
We investigate a separability criterion based on the computable cross-norm (CCNR), and a related quantity called the CCNR negativity. We introduce a reflected version of the CCNR n…