Generalized Hardy's Paradox
| Autor: | Arun Kumar Pati, Shu-Han Jiang, Hong-Yi Su, Zhen-Peng Xu, Jing-Ling Chen |
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| Rok vydání: | 2017 |
| Předmět: |
Quantum Physics
Hardy's paradox FOS: Physical sciences General Physics and Astronomy 01 natural sciences 010305 fluids & plasmas Theoretical physics Quantum nonlocality Extension (metaphysics) Quantum state Qubit 0103 physical sciences Quantum Physics (quant-ph) 010306 general physics Construct (philosophy) Mathematics |
| Zdroj: | Physical review letters. 120(5) |
| ISSN: | 1079-7114 |
| Popis: | Here we present the most general framework for $n$-particle Hardy's paradoxes, which include Hardy's original one and Cereceda's extension as special cases. Remarkably, for any $n\ge 3$ we demonstrate that there always exist generalized paradoxes (with the success probability as high as $1/2^{n-1}$) that are stronger than the previous ones in showing the conflict of quantum mechanics with local realism. An experimental proposal to observe the stronger paradox is also presented for the case of three qubits. Furthermore, from these paradoxes we can construct the most general Hardy's inequalities, which enable us to detect Bell's nonlocality for more quantum states. 6+4 pages, 2 figures. Revised version. Accepted by Phys. Rev. Lett |
| Databáze: | OpenAIRE |
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