Eur. Phys. J. D (2013) 67: 193
https://doi.org/10.1140/epjd/e2013-40131-5

Regular Article

Steady state genuine multipartite entanglement in harmonic oscillator ensembles with a common environment

¹ Centre for Engineered Quantum Systems, Department of Physics and Astronomy, Macquarie University, NSW 2109, Sydney, Australia
² CSIRO Materials Science and Engineering, P.O. Box 218, NSW 2070 Lindfield, Australia

^a e-mail: mdelanty@gmail.com

Received: 8 March 2013
Received in final form: 22 June 2013
Published online: 25 September 2013

Abstract

Steady state entanglement in ensembles of harmonic oscillators with a common squeezed reservoir is studied. Under certain conditions the ensemble features genuine multipartite entanglement in the steady state. Several analytic results regarding the bipartite and multipartite entanglement properties of the system are derived. We also discuss a possible experimental implementation which may exhibit steady state genuine multipartite entanglement.