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Truly unentangled photon pairs without spectral filtering

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 نشر من قبل Zachary Vernon
 تاريخ النشر 2017
  مجال البحث فيزياء
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We demonstrate that an integrated silicon microring resonator is capable of efficiently producing photon pairs that are completely unentangled; such pairs are a key component of heralded single photon sources. A dual-channel interferometric coupling scheme can be used to independently tune the quality factors associated with the pump and signal and idler modes, yielding a biphoton wavefunction with Schmidt number arbitrarily close to unity. This will permit the generation of heralded single photon states with unit purity.



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