期刊
PHYSICAL REVIEW LETTERS
卷 106, 期 4, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.106.040402
关键词
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资金
- NSF [DMR-0844899]
- ARO [W911NF-09-1-0417]
- DARPA DSO
- Division Of Materials Research
- Direct For Mathematical & Physical Scien [0844899] Funding Source: National Science Foundation
We generalize the derivation of Leggett-Garg inequalities to systematically treat a larger class of experimental situations by allowing multiparticle correlations, invasive detection, and ambiguous detector results. Furthermore, we show how many such inequalities may be tested simultaneously with a single setup. As a proof of principle, we violate several such two-particle inequalities with data obtained from a polarization-entangled biphoton state and a semiweak polarization measurement based on Fresnel reflection. We also point out a nontrivial connection between specific two-party Leggett-Garg inequality violations and convex sums of strange weak values.
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