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Quantum Transducer Using a Parametric Driven-Dissipative Phase Transition

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2019

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Heugel, Toni L.
Biondi, Matteo
Chitra, Ramasubramanian

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https://doi.org/10.1103/PhysRevLett.123.173601
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http://arxiv.org/abs/1901.03232

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Physical Review Letters. American Physical Society (APS). 2019, 123(17), 173601. ISSN 0031-9007. eISSN 1079-7114. Available under: doi: 10.1103/PhysRevLett.123.173601

Zusammenfassung

We study a dissipative Kerr resonator subject to both single- and two-photon detuned drives. Beyond a critical detuning threshold, the Kerr resonator exhibits a semiclassical first-order dissipative phase transition between two different steady states that are characterized by a π phase switch of the cavity field. This transition is shown to persist deep into the quantum limit of low photon numbers. Remarkably, the detuning frequency at which this transition occurs depends almost linearly on the amplitude of the single-photon drive. Based on this phase-switching feature, we devise a sensitive quantum transducer that translates the observed frequency of the parametric quantum phase transition to the detected single-photon amplitude signal. The effects of noise and temperature on the corresponding sensing protocol are addressed, and a realistic circuit-QED implementation is discussed.

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ISO 690HEUGEL, Toni L., Matteo BIONDI, Oded ZILBERBERG, Ramasubramanian CHITRA, 2019. Quantum Transducer Using a Parametric Driven-Dissipative Phase Transition. In: Physical Review Letters. American Physical Society (APS). 2019, 123(17), 173601. ISSN 0031-9007. eISSN 1079-7114. Available under: doi: 10.1103/PhysRevLett.123.173601
BibTex
@article{Heugel2019-10-25Quant-54942,
  year={2019},
  doi={10.1103/PhysRevLett.123.173601},
  title={Quantum Transducer Using a Parametric Driven-Dissipative Phase Transition},
  number={17},
  volume={123},
  issn={0031-9007},
  journal={Physical Review Letters},
  author={Heugel, Toni L. and Biondi, Matteo and Zilberberg, Oded and Chitra, Ramasubramanian},
  note={Article Number: 173601}
}
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