4 papers · 1 filter
Open-system analogy of Berry conjecture
Yaohua Li, Yunhan Wang, Yong-Chun Liu
Berry conjecture is central to understanding quantum chaos in isolated systems and foundational for the eigenstate thermalization hypothesis. Here we establish an open-system analo…
Exact steady state of quantum van der Pol oscillator: critical phenomena and enhanced metrology
Yaohua Li, Xuanchen Zhang, Yong-Chun Liu
Quantum criticality of open many-body systems has attracted lots of interest for emergent phenomena and universality. Here we present the exact steady state of the quantum van der…
Revealing spontaneous symmetry breaking in continuous time crystals
Yuanjiang Tang, Chenyang Wang, Bei Liu +7
Spontaneous symmetry breaking plays a pivotal role in physics ranging from the emergence of elementary particles to the phase transitions of matter. The spontaneous breaking of con…
Non-Hermitian skin effect and nonreciprocity induced by dissipative couplings
Xinyao Huang, Yaohua Li, Guo-Feng Zhang +1
We study the mechanism for realizing non-Hermitian skin effect (NHSE) via dissipative couplings, in which the left-right couplings have equal strengths but the phases do not satisf…