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quant-ph2026
Noise-robust discrimination of incoherent point sources with spatial-mode demultiplexing
Jian-Qiang Liu, Chao-Ning Hu, Jun Xin +1
We theoretically predict and experimentally demonstrate that a reduced spatial-mode demultiplexing (SPADE) measurement using only the two lowest-order Hermite-Gaussian modes exhibi…
quant-ph2025
Measuring the Oscillation Frequency Beyond the Diffraction Limit
Chao-Ning Hu, Jun Xin, Xiao-Ming Lu
High-resolution array detectors are widely used in single-particle tracking, but their performance is limited by excess noise from background light and dark current. As pixel resol…
quant-ph2023
All-optical correlated noisy channel and its application in recovering quantum coherence
Dan Lei, Disheng Guo, Jun Xin +1
Attenuation and amplification are the most common processes for optical communications. Amplification can be used to compensate the attenuation of the complex amplitude of an optic…