Programmable integrated source of polarization and frequency-bin hyperentangled photon pairs
arxiv(2023)
摘要
We present a system of four ring resonators capable of generating
programmable polarization and frequency-bin entangled photon pairs on an
integrated photonic device. Each ring is pumped with a continuous wave,
generating photon pairs with the same polarization in two pairs of frequency
bins via spontaneous fourwave mixing. We show that the density operator of the
generated state represents a hyperentangled state in the polarization and
frequency bin degrees of freedom. We also calculate the generation rate of the
state.
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