5 citations · 5 across the 13 of their papers we have counts for
14 papers · 1 filter
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…
Inverse-squeezing receivers for squeezed-state pulse-position modulation under ideal and phase-diffusion conditions
Enhao Bai, Fengkai Sun, Tianyi Wu +4
We introduce a squeezed-state pulse-position modulation (S-PPM) format, where the empty slots are squeezed vacuum states and the pulse slot is a displaced squeezed state. Based on…
Multiparameter quantum estimation with a uniformly accelerated Unruh-DeWitt detector
Shoukang Chang, Yashu Yang, Wei Ye +6
The uniformly accelerated Unruh-DeWitt detector serves as a fundamental model in relativistic quantum metrology. While previous studies have mainly concentrated on single-parameter…
Residual-Squeezing Mechanism of Mismatch in Inverse-Squeezing Kennedy Receivers
Enhao Bai, Fengkai Sun, Tianyi Wu +8
The discrimination of quantum states is fundamental to quantum information processing. Inverse-squeezing Kennedy (IS-Kennedy) receivers can outperform the coherent-state BPSK Helst…
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…
Evaluating the quantum optimal biased bound in a unitary evolution process
Shoukang Chang, Wei Ye, Xuan Rao +6
Seeking the available precision limit of unknown parameters is a significant task in quantum parameter estimation. One often resorts to the widely utilized quantum Cramer-Rao bound…