Quantum interference by two temporally distinguishable pulses

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PhysRevA.60.R37.pdf (339.05 KB)

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https://link.aps.org/doi/10.1103/PhysRevA.60.R37

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https://doi.org/10.1103/PhysRevA.60.R37
 http://hdl.handle.net/11603/39885

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UMBC Faculty Collection
UMBC Physics Department
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Author/Creator ORCID

https://orcid.org/0000-0002-3399-2101

Date

1999-07-01

Type of Work

journal articles
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Program

Citation of Original Publication

Kim, Yoon-Ho, Maria V. Chekhova, Sergei P. Kulik, and Yanhua Shih. "Quantum Interference by Two Temporally Distinguishable Pulses". Physical Review A 60, no. 1 (1999): R37–40. https://doi.org/10.1103/PhysRevA.60.R37.

Rights

©1999 American Physical Society.

Subjects

UMBC Quantum Optics Laboratory

Abstract

We report a two-photon interference effect, in which the entangled photon pairs are generated from two laser pulses well separated in time. In a single pump pulse case, interference effects did not occur in our experimental scheme. However, by introducing a second pump pulse delayed in time, quantum interference was then observed. The visibility of the interference fringes shows a dependence on the delay time between two laser pulses. The results are explained in terms of indistinguishability of biphoton amplitudes that originates from two temporally separated laser pulses.