Photocount statistics of the Josephson parametric amplifier: a question of detection
arXiv:2010.03014 · doi:10.1103/PhysRevResearch.4.013176
Abstract
Parametric amplifiers are known to squeeze the vacuum state of the electromagnetic field, which results in predictable statistics of the photocounts at their output. However, recent theoretical work arXiv:1112.4159 predicts a very different statistical distribution for an amplifier based on a Josephson junction. We test the hypothesis experimentally and recover the expected squeezed vacuum statistics. We explain this discrepancy by showing theoretically how the photocount statistics is dictated by the detection process, from single mode (our experiment) to multimode, fully resolved in frequency (as in arXiv:1112.4159).
arXiv comment5 pages, 5 figures
References in corpus (14)
- Phase preserving amplification near the quantum limit with a Josephson Ring Modulator
- Dispersive magnetometry with a quantum limited SQUID parametric amplifier
- Design and characterization of a lumped element single-ended superconducting microwave parametric amplifier with on-chip flux bias line
- High-gain weakly nonlinear flux-modulated Josephson parametric amplifier using a SQUID-array
- Effect of higher-order nonlinearities on amplification and squeezing in Josephson parametric amplifiers
- Signal-to-pump back-action and self-oscillation in Double-Pump Josephson Parametric Amplifier
- Quantum limited amplification from inelastic Cooper pair tunneling
- Statistics of radiation at Josephson parametric resonance
- Bandwidth and dynamic range of a widely tunable Josephson parametric amplifier
- Energy resolution of terahertz single-photon-sensitive bolometric detectors
- Discrete photon statistics from continuous microwave measurements
- Parametric amplification and squeezing with an ac- and dc-voltage biased superconducting junction
- Unidimensional Time Domain Quantum Optics
- Photon pair shot noise in electron shot noise