English

Simulation of two spin-$s$ singlet correlations for all $s$ involving spin measurements

Quantum Physics 2007-06-18 v1

Abstract

In a recent paper [A. Ahanj et al., quant-ph/0603053], we gave a classical protocol to simulate quantum correlations corresponding to the spin ss singlet state for the infinite sequence of spins satisfying 2s+1=2n2s+1 = 2^{n}. In the present paper, we have generalized this result by giving a classical protocol to exactly simulate quantum correlations implied by the spin-ss singlet state corresponding to all integer as well as half-integer spin values ss. The class of measurements we consider here are only those corresponding to spin observables, as has been done in the above-mentioned paper. The required amount of communication is found to be log2(s+1)\lceil {\rm log}_{2} (s + 1) \rceil in the worst case scenario, where x\lceil x \rceil is the least integer greater than or equal to xx.

Keywords

Cite

@article{arxiv.0706.2287,
  title  = {Simulation of two spin-$s$ singlet correlations for all $s$ involving spin measurements},
  author = {Ali Ahanj and Pramod S. Joag and Sibasish Ghosh},
  journal= {arXiv preprint arXiv:0706.2287},
  year   = {2007}
}

Comments

13 pages Latex, one eps figure