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Polarization versus photon spin
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DOI：10.1364/OE.22.001569.png)
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摘要
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We examine whether the Stokes parameters of a two-mode electromagnetic field results from the superposition of the spins of the photons it contains. To this end we express any n-photon state as the result of the action on the vacuum of n creation operators generating photons which can have may different polarization states in general. We find that the macroscopic polarization holds as sum of the single-photon Stokes parameters only for the SU(2) orbits of photon-number states. The states that lack this property are entangled in every basis of independent field modes, so this is a class of entanglement beyond the reach of SU(2) transformations. (C) 2014 Optical Society of America
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IF:
3.3
论文数:
6.1W
被引数:
14.3W
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