42 citations · 72 across the 11 of their papers we have counts for
11 papers
Achieving the Quantum Limits with Twin-Field Sensors
Yaohua Li, Fan Yang, Klaus Mølmer
Continuous measurements play a fundamental role in quantum experiments, yet understanding and extracting the maximal possible information in a continuous probe signal remains a sig…
Metastable confinement in Rydberg lattice gauge theories
Yaohua Li, Devendra Singh Bhakuni, Yong-Chun Liu +1
Confinement and string breaking are two fundamental phenomena in gauge theories. Signatures of both are currently pursued in quantum-simulator experiments, opening a new angle on s…
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…
General theory for geometry-dependent non-Hermitian bands
Chenyang Wang, Jinghui Pi, Qinxin Liu +2
In two- and higher-dimensional non-Hermitian lattices, systems can exhibit geometry-dependent bands, where the spectrum and eigenstates under open boundary conditions depend on the…
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…
Time Crystal in a Single-mode Nonlinear Cavity
Yaohua Li, Chenyang Wang, Yuanjiang Tang +1
Time crystal is a class of non-equilibrium phases with broken time-translational symmetry. Here we demonstrate the time crystal in a single-mode nonlinear cavity. The time crystal…
Quantum Signatures of Topological Phase in Bosonic Quadratic System
Yaohua Li, Yong-Chun Liu
Quantum entanglement and classical topology are two distinct phenomena that are difficult to be connected together. Here we discover that an open bosonic quadratic chain exhibits t…
Loss-induced Floquet non-Hermitian skin effect
Yaohua Li, Cuicui Lu, Shuang Zhang +1
Non-Hermitian topological systems have attracted lots of interest due to their unique topological properties when the non-Hermitian skin effect (NHSE) appears. However, the experim…
Mechanical Squeezing via Detuning-Switched Driving
Yaohua Li, An-Ning Xu, Long-Gang Huang +1
Generation of mechanical squeezing has attracted a lot of interest for its nonclassical properties, applications in quantum information, and high-sensitivity measurement. Here we p…