932 citations · 11.5k across the 156 of their papers we have counts for
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Krylov Complexity in Open Quantum Systems
Chang Liu, Haifeng Tang, Hui Zhai
Krylov complexity is a novel measure of operator complexity that exhibits universal behavior and bounds a large class of other measures. In this letter, we generalize Krylov comple…
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…
Anisotropic transport and de Haasvan Alphen oscillations in quasi-one-dimensional TaPtTe
Wen-He Jiao, Shaozhu Xiao, Bin Li +11
Because of the unique physical properties and potential applications, the exploration of quantum materials with diverse symmetry-protected topological states has attracted consider…
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…
Machine Learning Identification of Impurities in the STM Images
Ce Wang, Haiwei Li, Zhenqi Hao +6
In this work we train a neural network to identify impurities in the experimental images obtained by the scanning tunneling microscope measurements. The neural network is first tra…
Superconductivity in the regime of attractive interactions in the Tomonaga-Luttinger liquid
Ž. Gosar, N. Janša, T. Arh +5
While the vast majority of known physical realizations of the Tomonaga-Luttinger liquid (TLL) have repulsive interactions defined with the dimensionless interaction parameter $K_{\…
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…
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…
Role of valence changes and nanoscale atomic displacements in BiS2-based superconductors
Jie Cheng, Huifei Zhai, Yu Wang +3
Superconductivity within layered crystal structures has attracted sustained interest among condensed matter community, primarily due to their exotic superconducting properties. EuB…
Measuring out-of-time-order correlators on a nuclear magnetic resonance quantum simulator
Jun Li, Ruihua Fan, Hengyan Wang +5
The idea of the out-of-time-order correlator (OTOC) has recently emerged in the study of both condensed matter systems and gravitational systems. It not only plays a key role in in…
Synthesis, crystal structure and physical properties of quasi-one-dimensional ACrAs (A = Rb, Cs)
Zhang-Tu Tang, Jin-Ke Bao, Liu Yi +6
Recently, new Cr-based superconductors, ACrAs (A = K, Rb, Cs), have gained a strong interest because of their one-dimensional crystal structures and electron correlatio…
Physical properties and electronic structure of SrCrAsO containing CrO and CrAs square-planar lattices
Hao Jiang, Jin-Ke Bao, Hui-Fei Zhai +7
We report the physical properties and electronic structure calculations of a layered chromium oxypnictide, SrCrAsO, which crystallizes in a SrMnAsO-…
The electronic instabilities of the Iron-based superconductors: a variational Monte-Carlo study
Fan Yang, Hui Zhai, Fa Wang +1
We report the first variational Monte Carlo (VMC) study of the iron-based superconductors. We use realistic band structures, and the ordering instabilities/variational ansatzs are…
Quantum Antiferromagnetism of Fermions in Optical Lattices with Half-filled p-band
Kai Wu, Hui Zhai
We study Fermi gases in a three-dimensional optical lattice with five fermions per site, i.e. the s-band is completely filled and the p-band with three-fold degeneracy is half fill…