Entangled states of dipolar bosons generated in a triple-well potential

TL;DR

This paper demonstrates how to generate and analyze entangled states of dipolar bosons in a triple-well potential, leveraging controllable long-range interactions and integrability for accurate time-evolution predictions.

Contribution

It introduces an integrable model for dipolar bosons in a triple-well, enabling analytical study of entanglement dynamics from non-entangled initial states.

Findings

Analytic formulas accurately predict entanglement evolution.

Integrability simplifies the analysis of complex many-body dynamics.

Controllable interactions allow tailored entangled state generation.

Abstract

We study the generation of entangled states using a device constructed from dipolar bosons confined to a triple-well potential. Dipolar bosons possess controllable, long-range interactions. This property permits specific choices to be made for the coupling parameters, such that the system is integrable. Integrability assists in the analysis of the system via an effective Hamiltonian constructed through a conserved operator. Through computations of fidelity we establish that this approach, to study the time-evolution of the entanglement for a class of non-entangled initial states, yields accurate approximations given by analytic formulae.