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arXiv · 1302.5296

Persistence of Hardy's nonlocality in time

Sujit K Choudhary·Sandeep K Goyal·Thomas Konrad·Sibasish Ghosh
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Abstract

Hardy's nonlocality argument, which establishes incompatibility of quantum theory with local-realism, can also be used to reveal the time-nonlocal feature of quantum states. For spin-1/2 systems, the maximum probability of success of this argument is known to be 25%. We show that this maximum remains 25% for all finite-dimensional quantum systems with suitably chosen observables. This enables a test of the quantum properties of macroscopic systems in analogy to the method of Leggett and Garg.

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Sujit K Choudhary, Sandeep K Goyal, Thomas Konrad, Sibasish Ghosh. 2013-02-21. Persistence of Hardy's nonlocality in time. https://arxiv.org/abs/1302.5296

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