Theoretical Falsification of Leggett Conjecture for Two Qubits or One Ququat

Marcin Wieśniak

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arXiv · 1111.4410

Theoretical Falsification of Leggett Conjecture for Two Qubits or One Ququat

Marcin Wieśniak

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Abstract

Recently, some attention has been paid to falsifying the Leggett model, in which global probabilities characterizing a quantum state are represented by a combination of factorisable distributions. This idea was even verified in experiments, and generalized for larger subsystems, but thus far not in terms of the size of a subsystem. In this communication we show an inequality to reject the Leggett description for a subsystem of two qubits. We also point out some other interpretations of the derived expression.

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Marcin Wieśniak. 2011-11-18. Theoretical Falsification of Leggett Conjecture for Two Qubits or One Ququat. https://arxiv.org/abs/1111.4410

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