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Direct Measurement ...
Direct Measurement of a Nonlocal Entangled Quantum State
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Pan, Wei-Wei (author)
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Xu, Xiao-Ye (author)
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- Kedem, Yaron (author)
- Stockholms universitet,Fysikum
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Wang, Qin-Qin (author)
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Chen, Zhe (author)
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Jan, Munsif (author)
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Sun, Kai (author)
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Xu, Jin-Shi (author)
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Han, Yong-Jian (author)
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Li, Chuan-Feng (author)
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Guo, Guang-Can (author)
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(creator_code:org_t)
- 2019
- 2019
- English.
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In: Physical Review Letters. - 0031-9007 .- 1079-7114. ; 123:15
- Related links:
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https://arxiv.org/ab...
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
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- Entanglement and the wave function description are two of the core concepts that make quantum mechanics such a unique theory. A method to directly measure the wave function, using weak values, was demonstrated by Lundeen et al. [Nature 474, 188 (2011)]. However, it is not applicable to a scenario of two disjoint systems, where nonlocal entanglement can be a crucial element, since that requires obtaining weak values of nonlocal observables. Here, for the first time, we propose a method to directly measure a nonlocal wave function of a bipartite system, using modular values. The method is experimentally implemented for a photon pair in a hyperentangled state, i.e., entangled both in polarization and momentum degrees of freedom.
Subject headings
- NATURVETENSKAP -- Fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences (hsv//eng)
Publication and Content Type
- ref (subject category)
- art (subject category)
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- By the author/editor
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Pan, Wei-Wei
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Xu, Xiao-Ye
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Kedem, Yaron
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Wang, Qin-Qin
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Chen, Zhe
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Jan, Munsif
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show more...
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Sun, Kai
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Xu, Jin-Shi
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Han, Yong-Jian
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Li, Chuan-Feng
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Guo, Guang-Can
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show less...
- About the subject
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Physical Science ...
- Articles in the publication
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Physical Review ...
- By the university
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Stockholm University