paper

Distillability Criterion for all Bipartite Gaussian States

arXiv:quant-ph/0104072 · doi:10.1103/PhysRevLett.87.167904

Abstract

We prove that all inseparable Gaussian states of two modes can be distilled into maximally entangled pure states by local operations. Using this result we show that a bipartite Gaussian state of arbitrarily many modes can be distilled if and only if its partial transpose is not positive.

8 pages, corrected some typos, final version