7 papers
Accessible precisions for estimating two conjugate parameters using Gaussian probes
Syed M. Assad, Jiamin Li, Yuhong Liu +5
We analyse the precision limits for simultaneous estimation of a pair of conjugate parameters in a displacement channel using Gaussian probes. Having a set of squeezed states as an…
Generation of pure-state single photons with high heralding efficiency by using a three-stage nonlinear interferometer
Jiamin Li, Jie Su, Liang Cui +3
We experimentally study a fiber-based three-stage nonlinear interferometer and demonstrate its application in generating heralded single photons with high efficiency and purity by…
Direct temporal mode measurement for the characterization of temporally multiplexed high dimensional quantum entanglement in continuous variables
Nan Huo, Yuhong Liu, Jiamin Li +6
Field-orthogonal temporal mode analysis of optical fields is recently developed for a new framework of quantum information science. But so far, the exact profiles of the temporal m…
Optimum quantum resource distribution for phase measurement and quantum information tapping in a dual-beam SU(1,1) interferometer
Yuhong Liu, Nan Huo, Jiamin Li +3
Quantum entanglement is a resource in quantum metrology that can be distributed to two orthogonal physical quantities for the enhancement of their joint measurement sensitivity, as…
Quantum state engineering by nonlinear quantum interference
Liang Cui, Jie Su, Jiamin Li +3
Multi-photon quantum interference is the underlying principle for optical quantum information processing protocols. Indistinguishability is the key to quantum interference. Therefo…
Measuring the continuous variable quantum entanglement with a parametric amplifier assisted homodyne detection
Jiamin Li, Yuhong Liu, Nan Huo +4
Traditional method for measuring continuous-variable quantum entanglement relies on balanced homodyne detections, which are sensitive to vacuum quantum noise coupled in through los…