Abstract
AbstractWe have constructed quantum electrodynamics theory for excitons whose center‐of‐mass motion is confined in arbitrary‐structured dielectrics with considering their nonlocal optical susceptibility. We systematically investigate entangled‐photon generation via biexcitons in nano‐to‐macro scale materials by this theory. It is revealed that nano‐structured materials provide scattering spectra explicitly reflecting quantum states of confined exciton‐polaritons and are promising sources of entangled photons from the viewpoints of both efficiency and signal‐to‐noise ratio. (© 2006 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
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