456 citations · 3.3k across the 66 of their papers we have counts for
7 papers · 1 filter
Signature of Scramblon Effective Field Theory in Random Spin Models
Zeyu Liu, Pengfei Zhang
Information scrambling refers to the propagation of information throughout a quantum system. Its study not only contributes to our understanding of thermalization but also has wide…
Perturbative Page Curve Induced by External Impulse
Pengfei Zhang
In this work, we extend the recent study of entropy dynamics induced by an external impulse in open quantum systems, where the entropy response follows the Page curve. For small sy…
Quantum phases of -orbital bosonic gases in a hexagonal lattice
Pengfei Zhang, Hui Tan, Jianmin Yuan +1
Orbital degree of freedom plays an important role for understanding quantum many-body phenomena. In this work, we study an experimentally related setup with ultracold bosons loaded…
Universal Aspects of High-Temperature Relaxation Dynamics in Random Spin Models
Tian-Gang Zhou, Wei Zheng, Pengfei Zhang
Universality is a crucial concept in modern physics, allowing us to capture the essential features of a system's behavior using a small set of parameters. In this work, we unveil u…
Universal Properties of the Spectral Form Factor in Open Quantum Systems
Yi-Neng Zhou, Tian-Gang Zhou, Pengfei Zhang
The spectral form factor (SFF) can probe the eigenvalue statistic at different energy scales as its time variable varies. In closed quantum chaotic systems, the SFF exhibits a univ…
Attenuating Dynamics of Strongly Interacting Fermionic Superfluids in SYK Solvable Models
Tian-Gang Zhou, Pengfei Zhang
Quench dynamics of fermionic superfluids are an active topic both experimentally and theoretically. Using the BCS theory, such non-equilibrium problems can be reduced to nearly ind…
Full Counting Statistics across the Entanglement Phase Transition of Non-Hermitian Hamiltonians with Charge Conservations
Tian-Gang Zhou, Yi-Neng Zhou, Pengfei Zhang
Performing quantum measurements produces not only the expectation value of a physical observable but also the probability distribution of all possible outcomes . The…