The most robust entangled state of light

Details The most robust entangled state of light The most robust entangled state of light

2004-12-31

arxiv.org/abs/quant-ph/0412221v2

Phys. Rev. A 71, 062322 (2005)

Physics

Quantum Physics

9 figures, 7 pages, 2 authors

Scientific paper

10.1103/PhysRevA.71.062322

We study how photon absorption losses degrade the bipartite entanglement of entangled states of light. We consider two questions: (i) what state contains the smallest average number of photons given a fixed amount of entanglement? and (ii) what state is the most robust against photon absorption? We explain why the two-mode squeezed state is the answer to the first question but not quite to the second question.

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