2 papers
quant-ph2026
Multiparameter quantum estimation in a photon system induced by gravitational redshift
Wei Ye, Hui Cao, Songtao Zhang +6
As photons propagate through curved spacetime, gravitational effects become unavoidable. In particular, gravitational redshift can induce significant distortion in photon wave pack…
quant-ph2026
Squeezing-Enhanced Two-Phase Estimation with N-Particle W-type States
Huan Zhang, Guofu Yin, Ying Xia +3
We investigate the simultaneous estimation of two optical phases in a three-mode interferometer assisted by optical parametric amplification (OPA). By employing the normally ordere…