Current and entanglement in a Bose-Hubbard lattice

TL;DR

This paper investigates how entanglement is generated between two atomic species in an optical lattice, using current as an indicator, and explores the thermalization process related to this entanglement.

Contribution

It introduces a method to detect entanglement via current measurements and links thermalization dynamics to entanglement evolution in a Bose-Hubbard lattice.

Findings

Current serves as a good indicator of entanglement generation

Thermalization is closely related to current evolution

Entanglement can be controlled by managing interspecies interactions

Abstract

We study the generation of entanglement for interacting cold atoms in an optical lattice. The entanglement is generated by managing the interaction between two distinct atomic species. It is found that the current of one of the species can be used as a good indicator of entanglement generation. The thermalization process between the species is also shown to be closely related to the evolution of the current.