Reply to "Comment on 'Einstein-Podolsky-Rosen state for space-time variables in a two-photon interference experiment'"

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PhysRevA.48.4001.pdf (118.94 KB)

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https://link.aps.org/doi/10.1103/PhysRevA.48.4001

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https://doi.org/10.1103/PhysRevA.48.4001
 http://hdl.handle.net/11603/39933

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UMBC Physics Department
UMBC Faculty Collection

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Date

1993-11-01

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journal articles
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Citation of Original Publication

Shih, Y. H., A. V. Sergeinko, and Morton H. Rubin. “Reply to ‘Comment on `Einstein-Podolsky-Rosen State for Space-Time Variables in a Two-Photon Interference Experiment."' Physical Review A 48, no. 5 (1993): 4001–2. https://doi.org/10.1103/PhysRevA.48.4001.

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©1993 American Physical Society

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UMBC Quantum Optics Laboratory

Abstract

The assertion of Kwait, Steinberg, and Chiao [preceding Comment, Phys. Rev. A 48, 3999 (1993)] that alignment problems and the size of the beam-defining irises explain the decrease in the visibility in two-photon interference experiments is examined. We argue that these effects can explain the reason that the visibility does not attain its maximum theoretical value, but that it fails to explain the decrease in the visibility with the path differences in the interferometers. We conclude that one explanation of this effect is the breakdown of perfect frequency phase matching in parametric down-conversion.