Entangled photon apparatus for the undergraduate laboratory
نویسندگان
چکیده
We present detailed instructions for constructing and operating an apparatus to produce and detect polarization-entangled photons. The source operates by type I spontaneous parametric downconversion in a two-crystal geometry. Photons are detected in coincidence by single-photon counting modules and show strong angular and polarization correlations. We observe more than 100 entangled photon pairs per second. A test of a Bell inequality can be performed in an afternoon. © 2002 American Association of Physics Teachers. @DOI: 10.1119/1.1498859#
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