Regulating entanglement production in multitrap Bose-Einstein condensates

TL;DR

This paper explores how to control entanglement in a system of multiple Bose-Einstein condensate traps using a resonant external field, with potential applications in quantum information processing.

Contribution

It introduces a method to regulate entanglement production in multitrap Bose-Einstein condensates via a common resonant modulating field, demonstrating various regimes through numerical simulations.

Findings

Entanglement can be generated between traps using a resonant external field.

Regulation of entanglement is achievable by manipulating the external field parameters.

Numerical results illustrate different entanglement evolution regimes.

Abstract

A system of traps is considered, each containing a large number of Bose-condensed atoms. This ensemble of traps is subject to the action of an external modulating field generating nonequilibrium nonground-state condensates. When the frequency of the modulating field is in resonance with the transition frequency between two different topological coherent modes, each trap becomes an analog of a finite-level resonant atom. Similarly to the case of atoms in an electromagnetic resonant field, one can create entanglement between atomic traps subject to a common resonant modulating field generating higher coherent modes in each of the traps. A method is suggested for regulating entanglement production in such a system of multitrap and multimode Bose-Einstein condensates coupled through a common resonant modulating field. Several regimes of evolutional entanglement production, regulated by manipulating the external field, are illustrated by numerical calculations.