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OwnerPratyush Anand, Ethan G. Arnault +1inventors
InventorsPratyush Anand, Ethan G. Arnault, Dirk Robert ENGLUND
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Semiconductor single-optical-photon detectors cannot be readily adapted for detecting microwave photons because microwave photons carry far less energy than optical photons. A hybrid spin-optomechanical interface can detect single microwave photons where the microwave photons are coupled to a phononic cavity via piezoelectric actuation. This phononic cavity also acts as a photonic cavity with either a single Silicon-Vacancy (SiV) center embedded in diamond or an ensemble of SiV centers, bridging optical single-photon detection protocols into the microwave domain. The detection process can be modeled as a communication channel whose capacity is quantified by the mutual information I(A; B) between the true photon occupancy (A) and the detector outcome (B). Depending on experimentally achievable parameters, simulations predict I(A; B) in the range 0.57 ln(2) to 0.67 ln(2), corresponding to true-positive (detection) probabilities above 90% and false-positive (dark count) probabilities below 10% per detection interval.
A method of detecting a microwave photon, the method comprising:
A system for detecting a microwave photon, the system comprising:
A method of detecting a single microwave photon, the method comprising:
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