Simulation of partial entanglement with nonsignaling resources

Details Simulation of partial entanglement with nonsignaling resources Simulation of partial entanglement with nonsignaling resources

2008-03-16

arxiv.org/abs/0803.2359v2

Phys. Rev. A 78, 052111 (2008)

Physics

Quantum Physics

6 pages, 2 figures

Scientific paper

10.1103/PhysRevA.78.052111

With the goal of gaining a deeper understanding of quantum non-locality, we decompose quantum correlations into more elementary non-local correlations. We show that the correlations of all pure entangled states of two qubits can be simulated without communication, hence using only non-signaling resources. Our simulation model works in two steps. First, we decompose the quantum correlations into a local and a non-local part. Second, we present a model for simulating the nonlocal part using only non-signaling resources. In our model partially entangled states require more nonlocal resources than maximally entangled states, but the less the state is entangled, the less frequently must the nonlocal resources be used.

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