Document Type
Article
Publication Date
1-24-2011
Abstract
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.
Recommended Citation
J. Dressel, C. J. Broadbent, J. C. Howell, and A. N. Jordan, Experimental Violation of Two-Party Leggett-Garg Inequalities with Semiweak Measurements, Phys. Rev. Lett. 106(4), 040402. https://doi.org/10.1103/PhysRevLett.106.040402
Peer Reviewed
1
Copyright
American Physical Society
Comments
This article was originally published in Physical Review Letters, volume 106, issue 4, in 2011. https://doi.org/10.1103/PhysRevLett.106.040402