5 papers
Sensitivity Enhancement near High-Order Exceptional Points via Dissipative Couplings
Yuanjie Zhang, Jiaojiao Li, Zhihuang Luo
High-order exceptional points (EPs) emerging in non-Hermitian systems have attracted broad interest for their significantly enhanced sensitivity to perturbations. However, quantum…
Observation of Nonlinear Spin Dynamics in Dual-Cell Atomic Gases
Xiaofan Wang, Haitao Lu, Hengyan Wang +2
Nonlinear spin systems exhibit rich and exotic dynamical phenomena, offering promising applications ranging from spin masers and time crystals to precision measurement. Recent theo…
Enhanced Hamiltonian Learning Precision with Multi-Stage Neural Networks
Zhengjie Kang, Hao Li, Shuo Wang +3
Learning quantum Hamiltonians with high precision is important for quantum physics and quantum information science. We propose a multi-stage neural network framework that significa…
Observation of continuous time crystals and quasi-crystals in spin gases
Ying Huang, Tishuo Wang, Haochuan Yin +3
Continuous time crystal (CTC) and quasi-crystal (CTQC) are two novel phases of matter characterized by the spontaneous breaking of continuous time-translation symmetry. To date, re…
Nonlinear spin dynamics induced by feedback under continuous Larmor frequency distributions
Tishuo Wang, Zhihuang Luo, Shizhong Zhang +1
Nonlinear spin dynamics are essential in exploring nonequilibrium quantum phenomena and have broad applications in precision measurement. Among these systems, the combination of a…