3 papers
cond-mat.stat-mech2026
Coarse Graining Reveals a Fluctuation-theorem-like Asymmetry in Financial Markets
Jian Gao, Lufeng Zhang, Ping Fang +4
Fluctuation theorems show how coarse graining transforms microscopic symmetry into observable irreversibility. Here we ask whether an analogous symmetrybased diagnostic can be cons…
quant-ph2025
PT -symmetry breaking and universal spectral statistics in quantum kicked rotors
Guang Li, Fuxing Chen, Ping Fang
We investigate the spontaneous parity-time (PT )-symmetry breaking and spectral properties of a PT symmetric quantum kicked rotor under resonance conditions. At resonance, the QKR…
cond-mat.stat-mech2024
System Symmetry and the Classification of Out-of-Time-Ordered Correlator Dynamics in Quantum Chaos
Fuxing Chen, Ping Fang
The symmetry of chaotic systems plays a pivotal role in determining the universality class of spectral statistics and dynamical behaviors, which can be described within the framewo…