Einstein-Podolsky-Rosen-Bohm experiment and Bell inequality violation using Type 2 parametric down conversion

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19950007557.pdf (988.8 KB)

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https://ntrs.nasa.gov/citations/19950007557

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http://hdl.handle.net/11603/39930

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UMBC Physics Department
UMBC Faculty Collection

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Date

1994-05-01

Type of Work

conference papers and proceedings
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Citation of Original Publication

Kiess, Thomas E., Yan-Hua Shih, A. V. Sergienko, and Carroll O. Alley. “Einstein-Podolsky-Rosen-Bohm Experiment and Bell Inequality Violation Using Type 2 Parametric down Conversion.” Paper presented at Third International Workshop on Squeezed States and Uncertainty Relations, Baltimore, Maryland, August 10-13, 1993. https://ntrs.nasa.gov/citations/19950007557.

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This is a work of the United States Government. In accordance with 17 U.S.C. 105, no copyright protection is available for such works under U.S. Law.
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Thermodynamics And Statistical Physics
UMBC Quantum Optics Laboratory

Abstract

We report a new two-photon polarization correlation experiment for realizing the Einstein-Podolsky-Rosen-Bohm (EPRB) state and for testing Bell-type inequalities. We use the pair of orthogonally-polarized light quanta generated in Type 2 parametric down conversion. Using 1 nm interference filters in front of our detectors, we observe from the output of a 0.5mm beta - BaB2O4 (BBO) crystal the EPRB correlations in coincidence counts, and measure an associated Bell inequality violation of 22 standard deviations. The quantum state of the photon pair is a polarization analog of the spin-1/2 singlet state.