High-order continuous-variable coherence of phase-dependent squeezed state
Abstract
We study continuous variable coherence of phase-dependent squeezed state based on an extended Hanbury Brown-Twiss scheme. High-order coherence is continuously varied by adjusting squeezing parameter r, displacement α, and squeezing phase θ. We also analyze effects of background noise γ and detection efficiency η on the measurements. As the squeezing phase shifts from 0 to π, the photon statistics of the squeezed state continuously change from the anti-bunching (g(n) < 1) to super-bunching (g(n) > n!) which shows a transition from particle nature to wave nature. The experiment feasibility is also examined. It provides a practical method to generate phase-dependent squeezed states with high-order continuous-variable coherence by tuning squeezing phase θ. The controllable coherence source can be applied to sensitivity improvement in gravitational wave detection and quantum imaging.
- Publication:
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Optics Express
- Pub Date:
- March 2022
- DOI:
- arXiv:
- arXiv:2112.01940
- Bibcode:
- 2022OExpr..30.8461G
- Keywords:
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- Quantum Physics
- E-Print:
- 13 pages, 6 figures