## Abstract

It is known that all causal correlations between two parties which output each 1 bit, a and b, when receiving each 1 bit, x and y, can be expressed as convex combinations of local correlations (i.e., correlations that can be simulated with local random variables) and nonlocal correlations of the form a+b=xy mod 2. We show that a single instance of the latter elementary nonlocal correlation suffices to simulate exactly all possible projective measurements that can be performed on a maximally entangled state of two qubits, with no communication needed at all. This elementary nonlocal correlation thus defines some unit of nonlocality, which we call a nl bit.

Translated title of the contribution | Simulating maximal quantum entanglement without communication |
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Original language | English |

Article number | 220403 |

Pages (from-to) | - |

Number of pages | 4 |

Journal | Physical Review Letters |

Volume | 94 |

Issue number | 22 |

DOIs | |

Publication status | Published - 10 Jun 2005 |