Witnessing Entanglement with Second-Order Interference and Stokes Parameters
classification
🪐 quant-ph
keywords
entanglementstatesstokesinterferencelightmixedwitnessacting
read the original abstract
We propose to use Stokes parameter as an entanglement witness for correlated EPR mixed states of light. Such states can be generated with a beam splitter acting on two mixed squeezed states of light. Stokes witness operators are closely related to the Hanbury-Brown and Twiss interference and can be used to test entanglement in balanced homodyne experiments involving fluctuations of quantum quadratures of the electric field.
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