5 citations · 11 across the 10 of their papers we have counts for
10 papers
Universal classification of continuous phase transitions with two order parameters
Yilun Xu, Feng-xiao Sun
The continuous phase transition, indicated by the macroscopic order parameter and the occurrence of the spontaneous symmetry breaking, is well illustrated based on the Ginzburg-Lan…
Superradiance enhances and suppresses fermionic pairing based on universal critical scaling in two order parameters systems
Yilun Xu
Distinguished from the system with one order parameter, systems described by two or more order parameters will manifest more complex and much richer phase diagram and critical phen…
Multi-Parameter Multi-Critical Metrology of the Dicke Model
Luca Previdi, Yilun Xu, Qiongyi He +1
Critical quantum metrology exploits the hypersensitivity of quantum systems near phase transitions to achieve enhanced precision in parameter estimation. While single-parameter est…
Non-commutativity as a Universal Characterization for Enhanced Quantum Metrology
Ningxin Kong, Haojie Wang, Mingsheng Tian +4
A central challenge in quantum metrology is to effectively harness quantum resources to surpass classical precision bounds. Although recent studies suggest that the indefinite caus…
Boundary-induced Phases in the Dissipative Dicke Lattice Model
Peng-Fei Wei, Yilun Xu, Fengxiao Sun +3
The superradiant phase transition in the dissipative Dicke lattice model, driven by on-site collective atom-photon interactions and inter-site photon hopping, is a cornerstone of n…
Observe novel tricritical phenomena in self-organized Fermi gas induced by higher order Fermi surface nesting
Yilun Xu, Feng-Xiao Sun, Qiongyi He
Cold atom systems in optical lattices have long been recognized as an ideal platform for bridging condense matter physics and quantum optics. Here, we investigate the 1D fermionic…
Quantum phase transition in a quantum Rabi square with next-nearest-neighbor hopping
Yilun Xu, Feng-Xao Sun, Qiongyi He +2
We propose a quantum Rabi square model where both the nearest-neighbor and the next-nearest-neighbor photon hopping are allowed among four quantum Rabi systems located at the verti…
Manipulating Spectral Windings and Skin Modes through Nonconservative Couplings
Ningxin Kong, Chenghe Yu, Yilun Xu +3
The discovery of the non-Hermitian skin effect (NHSE) has revolutionized our understanding of wave propagation in non-Hermitian systems, highlighting unexpected localization effect…
Phase transition and multistability in Dicke dimer
Yilun Xu, Feng-Xiao Sun, Wei Zhang +2
The exotic phase transitions and multistabilities in atom-cavity coupled systems have attracted tremendous interests recently. In this work, we investigate the effect of photon hop…
Fast quantum state transfer and entanglement preparation in strongly coupled bosonic systems
Yilun Xu, Daoquan Zhu, Feng-Xiao Sun +2
Continuous U(1) gauge symmetry, which guarantees the conservation of the total excitations in linear bosonic systems, will be broken when it comes to the strong-coupling regime whe…