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quant-ph2025
Loss-tolerant detection of squeezed states in the 2 um region
K. M. Kwan, T. G. McRae, J. Qin +9
Squeezed states of light enable quantum-enhanced measurements but are limited by optical loss, particularly at 2 um where photodiode efficiency is low. We report the first loss-tol…
quant-ph2024
Quantum enhanced balanced heterodyne readout for differential interferometry
Daniel W. Gould, Vaishali B. Adya, Sheon S. Y. Chua +8
Conventional heterodyne readout schemes are now under reconsideration due to the realization of techniques to evade its inherent 3 dB signal-to-noise penalty. The application of hi…
quant-ph2024
Amplified Squeezed States: Analyzing Loss and Phase Noise
K. M. Kwan, M. J. Yap, J. Qin +7
Phase-sensitive amplification of squeezed states is a technique to mitigate high detection loss, e.g. at 2-micrometre wavelengths. Our analytical model of amplified squeezed states…