456 citations · 3.3k across the 66 of their papers we have counts for
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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…
Quantum Entanglement in the Sachdev-Ye-Kitaev Model and its Generalizations
Pengfei Zhang
Entanglement is one of the most important concepts in quantum physics. We review recent progress in understanding the quantum entanglement in many-body systems using large- solv…
Space-Time Duality between Quantum Chaos and Non-Hermitian Boundary Effect
Tian-Gang Zhou, Yi-Neng Zhou, Pengfei Zhang +1
Quantum chaos in hermitian systems concerns the sensitivity of long-time dynamical evolution to initial conditions. The skin effect discovered recently in non-hermitian systems rev…
Page Curve from Non-Markovianity
Kaixiang Su, Pengfei Zhang, Hui Zhai
In this letter, we use the exactly solvable Sachdev-Ye-Kitaev model to address the issue of entropy dynamics when an interacting quantum system is coupled to a non-Markovian enviro…
Tunneling through an Eternal Traversable Wormhole
Tian-Gang Zhou, Pengfei Zhang
The Maldacena-Qi model describes two copies of the Sachdev-Ye-Kitaev model coupled with an additional coupling, and is dual to the Jackiw-Teitelboim gravity which exhibits an etern…
Evaporation dynamics of the Sachdev-Ye-Kitaev model
Pengfei Zhang
In this paper, we study the evaporation dynamics of the Sachdev-Ye-Kitaev (SYK) model, with an initial temperature , by coupling it to a thermal bath with lower temperature $T…
Deep Learning Topological Invariants of Band Insulators
Ning Sun, Jinmin Yi, Pengfei Zhang +2
In this work we design and train deep neural networks to predict topological invariants for one-dimensional four-band insulators in AIII class whose topological invariant is the wi…
Topological Sachdev-Ye-Kitaev Model
Pengfei Zhang, Hui Zhai
In this letter we construct a large-N exactly solvable model to study the interplay between interaction and topology, by connecting Sacheve-Ye-Kitaev (SYK) model with constant hopp…
Efimov Effect in the Dirac Semi-metals
Pengfei Zhang, Hui Zhai
Efimov effect refers to quantum states with discrete scaling symmetry and a universal scaling factor, and has attracted considerable interests from nuclear to atomic physics commun…
Dispersive SYK model: band structure and quantum chaos
Pengfei Zhang
The Sachdev-Ye-Kitaev (SYK) model is a concrete model for non-Fermi Liquid with maximally chaotic behavior in -. In order to gain some insights into real materials in highe…
Competition between Chaotic and Non-Chaotic Phases in a Quadratically Coupled Sachdev-Ye-Kitaev Model
Xin Chen, Ruihua Fan, Yiming Chen +2
The Sachdev-Ye-Kitaev (SYK) model is a concrete solvable model to study non-Fermi liquid properties, holographic duality and maximally chaotic behavior. In this work, we consider a…