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cond-mat.stat-mech2026
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…
cond-mat.quant-gas2026
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…
quant-ph2026
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…