4 papers
Exceptional-point-like Sensing near Hermitian Critical Points
Jiang-Shan Tang, Long-Qi Xiao, Hao-Dong Wu +6
A non-Hermitian system at an exceptional point (EP), a specific critical point (CP) associated with the parity-time symmetric phase transition, exhibits a sublinear response to per…
Reversible optical isolators and quasi-circulators using a magneto-optical Fabry-Pérot cavity
Tiantian Zhang, Wenpeng Zhou, Zhixiang Li +7
Nonreciprocal optical devices are essential for laser protection, modern optical communication and quantum information processing by enforcing one-way light propagation. The conven…
Generation of True Quantum Random Numbers with On-Demand Probability Distributions via Single-Photon Quantum Walks
Chaoying Meng, Miao Cai, Yufang Yang +7
Random numbers are at the heart of diverse fields, ranging from simulations of stochastic processes to classical and quantum cryptography. The requirement for true randomness in th…
Towards On-Demand Heralded Single-Photon Sources via Photon Blockade
Jiangshan Tang, Lei Tang, Haodong Wu +7
Spontaneous parametric down-conversion (SPDC) in a laser pumped optical nonlinear medium can produce heralded single photons with a high purity but a very low yield. Improving the…