4 papers
Non-Hermitian-enhanced quantum sensing in an optical interferometer
X. J. Huang, Lei Xiao, Bingzi Huo +2
The precision of quantum parameter estimation is traditionally constrained by the quantum Cramér-Rao bound, which is based on the Hermitian measurement framework. Recent studies of…
Quantum sensing of aging transitions
Huining Zhang, Yunbo Zhang, Xiaoguang Wang +1
The aging transition is a critical phenomenon in which collective dynamics deteriorate as the fraction of inactive quantum nodes exceeds a threshold, referred to as the aging trans…
Aging of coupled qubits
Huining Zhang, Dianzhen Cui, W. Wang +1
The aging transition refers to the shift from an oscillatory state to a globally ceased state due to some forms of deterioration in classical physics. Similar behavior has also bee…
Manipulating spectral transitions and photonic transmission in a non-Hermitian optical system through nanoparticle perturbations
Bo-Wang Zhang, Cheng Shang, J. Y. Sun +2
In recent years, extensive research has been dedicated to the study of parity-time () symmetry, which involves the engineered balance of gain and loss in non-Hermitia…