Detecting many-body entanglements in noninteracting ultracold atomic fermi gases

TL;DR

This paper investigates how to detect many-body entanglement in ultracold atomic Fermi gases through time-of-flight momentum correlations, drawing analogies to black hole entropy and proposing experimental detection methods.

Contribution

It introduces a novel approach to identify many-body entanglement in noninteracting Fermi gases using TOF momentum correlations, inspired by black hole entropy analogies.

Findings

Proposes TOF momentum correlations as a signature of entanglement.

Draws analogy between particle-hole correlations and black hole entropy.

Suggests experimental detection of many-body entanglement.

Abstract

We explore the possibility of detecting many-body entanglement using time-of-flight (TOF) momentum correlations in ultracold atomic fermi gases. In analogy to the vacuum correlations responsible for Bekenstein-Hawking black hole entropy, a partitioned atomic gas will exhibit particle-hole correlations responsible for entanglement entropy. The signature of these momentum correlations might be detected by a sensitive TOF type experiment.