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Quantum Entanglement and the Two-Photon Stokes Parameters

Ayman F. Abouraddy·Alexander V. Sergienko·Bahaa E. A. Saleh·Malvin C. Teich
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Abstract

A formalism for two-photon Stokes parameters is introduced to describe the polarization entanglement of photon pairs. This leads to the definition of a degree of two-photon polarization, which describes the extent to which the two photons act as a pair and not as two independent photons. This pair-wise polarization is complementary to the degree of polarization of the individual photons. The approach provided here has a number of advantages over the density matrix formalism: it allows the one- and two-photon features of the state to be separated and offers a visualization of the mixedness of the state of polarization.

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Ayman F. Abouraddy, Alexander V. Sergienko, Bahaa E. A. Saleh, Malvin C. Teich. 2001-10-30. Quantum Entanglement and the Two-Photon Stokes Parameters. https://doi.org/10.1016/s0030-4018(01)01645-5

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