English

A general hidden variable model for the two-qubits system

Quantum Physics 2015-06-04 v1

Abstract

We generalize Bell's hidden variable model describing the singlet state of a two-qubits system by extending it to arbitrary states and observables. As in the original work, we assume a uniform, state-independent probability distribution for the hidden variables which are identified with the unit vectors of a 3-dimensional real space. By slightly modifying our model, we provide also a minimal hidden variable description of the two-qubits system, relying on a single hidden variable. We discuss the main features and the implications of the model.

Keywords

Cite

@article{arxiv.1203.3091,
  title  = {A general hidden variable model for the two-qubits system},
  author = {GianCarlo Ghirardi and Raffaele Romano},
  journal= {arXiv preprint arXiv:1203.3091},
  year   = {2015}
}

Comments

4 pages, submitted for publication

R2 v1 2026-06-21T20:33:55.152Z