1211.4302 (A. A. Gangat et al.)

Multipartite entangled microwave and micromechanical squeezed
Schrödinger cats: a phase transition-based protocol    [PDF]

A. A. Gangat, I. P. McCulloch, G. J. Milburn

Here we present a novel scheme to generate, on demand, large amplitude multipartite squeezed entangled coherent states (ECSs) via a (pseudo-)quantum phase transition of the attractive Bose-Hubbard model. We show that current technology can be used to implement the scheme in a coupled array of superconducting non-linear microwave resonators tunably coupled to an array of uncoupled micromechanical oscillators. The result is an array of squeezed Schr\"{o}dinger cats that are non-locally entangled across a large number of microwave and/or micromechanical oscillators.

View original: http://arxiv.org/abs/1211.4302