2 papers
cond-mat.stat-mech2026
Effective Field Theory of Operator Scrambling from Strong-to-Weak Symmetry Breaking
Bai-Lin Cheng, Shao-Kai Jian, Zhi-Cheng Yang
Operator scrambling is commonly diagnosed by the growth of out-of-time-ordered correlators (OTOCs), yet a general symmetry principle underlying their effective dynamics has remaine…
cond-mat.stat-mech2024
Hydrodynamic modes and operator spreading in a long-range center-of-mass-conserving Brownian SYK model
Bai-Lin Cheng, Shao-Kai Jian, Zhi-Cheng Yang
We study a center-of-mass-conserving Brownian complex Sachdev-Ye-Kitaev model with long-range (power-law) interactions characterized by . The kinetic constraint and long-ran…