161 citations · 485 across the 12 of their papers we have counts for
12 papers
Observation of non-Hermitian antichiral edge currents
Rui Ye, Yanyan He, Guangzhen Li +8
Non-Hermitian topological photonics is of great interest in bridging topological matter with gain/dissipation engineering in optics. A key problem in this direction is the interpla…
Coupling-induced nonunitary and unitary scattering in anti-PT-symmetric non-Hermitian systems
H. S. Xu, L. jin
We investigate the properties of two anti-parity-time (anti-PT )-symmetric four-site scattering centers. The anti-PT -symmetric scattering center may have imaginary couplings, real…
Flat band in two-dimensional non-Hermitian optical lattices
S. M. Zhang, L. Jin
We propose a method to generate a real-energy flat band in a two-dimensional (2D) non-Hermitian Lieb lattice. The coincidence of the flat band eigenstate in both real and momentum…
Asymmetric lasing at spectral singularities
L. Jin
Scattering coefficients can diverge at spectral singularities. In such situation, the stationary solution becomes a laser solution with outgoing waves only. We explore a parity-tim…
Parity-time symmetric coupled asymmetric dimers
L. Jin
We investigate a parity-time (PT) symmetric system that consists of two symmetrically coupled asymmetric dimers. The enclosed magnetic flux controls the PT phase transition. The sy…
Sensitivity of parameter estimation near the exceptional point of a non-Hermitian system
Chong Chen, Liang Jin, Ren-Bao Liu
The exceptional points of non-Hermitian systems, where different energy eigenstates merge into an identical one, have many intriguing properties that have no counterparts in He…
Quantum transport in coupled resonators enclosed synthetic magnetic flux
L. Jin
Quantum transport properties are instrumental to understanding quantum coherent transport processes. Potential applications of quantum transport are widespread, in areas ranging fr…
Universal Critical Behaviors in Non-Hermitian Phase Transitions
Bo-Bo Wei, Liang Jin
Quantum phase transitions also occur in non-Hermitian systems. In this work we show that density functional theory, for the first time, uncovers universal behaviors for phase trans…
Proposal of room-temperature diamond maser
Liang Jin, Matthias Pfänder, Nabeel Aslam +3
Lasers have revolutionized optical science and technology, but their microwave counterpart, maser, has not realized its great potential due to its demanding work conditions (high-v…
Macroscopic quantum superposition of spin ensembles with ultra-long coherence times via superradiant masing
Liang Jin, Sen Yang, Jörg Wrachtrup +1
Macroscopic quantum phenomena such as lasers, Bose-Einstein condensates, superfluids, and superconductors are of great importance in foundations and applications of quantum mechani…
Dynamics of one-dimensional tight-binding models with arbitrary time-dependent external homogeneous fields
W. H. Hu, L. Jin, Z. Song
The exact propagators of two one-dimensional systems with time-dependent external fields are presented by following the path-integral method. It is shown that the Bloch acceleratio…
Probability-preserving evolution in a non-Hermitian two-band model
W. H. Hu, L. Jin, Y. Li +1
A non-Hermitian PT-symmetric system can have full real spectrum but does not ensure probability preserving time evolution, in contrast to that of a Hermitian system. We present a n…