480 citations · 1.6k across the 22 of their papers we have counts for
22 papers
Topological spectral form factor reveals emergent non-Hermitian single-particle transitions from many-body quantum chaos
Daniel Harkin, Chun Y. Leung, Amos Chan
In equilibrium, topological defect insertions in quantum and classical partition functions provide non-perturbative probes of phase transitions beyond local observables. In non-equ…
Many-body quantum chaos and time reversal symmetry
Weijun Wu, Saumya Shivam, Amos Chan
We investigate universal signatures of quantum chaos in the presence of time reversal symmetry (TRS) in generic many body quantum chaotic systems (gMBQCs). We study three classes o…
Spectral form factor in chaotic, localized, and integrable open quantum many-body systems
Jiachen Li, Stephen Yan, Tomaž Prosen +1
We numerically study the spectral statistics of open quantum many-body systems (OQMBS) as signatures of quantum chaos (or the lack thereof), using the dissipative spectral form fac…
Universal distributions of overlaps from generic dynamics in quantum many-body systems
Alexios Christopoulos, Amos Chan, Andrea De Luca
We study the distribution of overlaps with the computational basis of a quantum state generated under generic quantum many-body chaotic dynamics, without conserved quantities, for…
Measuring Spectral Form Factor in Many-Body Chaotic and Localized Phases of Quantum Processors
Hang Dong, Pengfei Zhang, Ceren B. Dag +28
The spectral form factor (SFF) captures universal spectral fluctuations as signatures of quantum chaos, and has been instrumental in advancing multiple frontiers of physics includi…
Projected state ensemble of a generic model of many-body quantum chaos
Amos Chan, Andrea De Luca
The projected ensemble is based on the study of the quantum state of a subsystem conditioned on projective measurements in its complement. Recent studies have observed that a m…
Out-of-time-order correlator, many-body quantum chaos, light-like generators, and singular values
Ke Huang, Xiao Li, David A. Huse +1
We study out-of-time-order correlators (OTOCs) of local operators in spatial-temporal invariant or random quantum circuits using light-like generators (LLG) -- many-body operators…
Many-body quantum chaos in stroboscopically-driven cold atoms
Ceren B. Dag, Simeon I. Mistakidis, Amos Chan +1
In quantum chaotic systems, the spectral form factor (SFF), defined as the Fourier transform of the two-level spectral correlation function, is known to follow random matrix theory…
Many-body quantum chaos and emergence of Ginibre ensemble
Saumya Shivam, Andrea De Luca, David A. Huse +1
We show that non-Hermitian Ginibre random matrix behaviors emerge in spatially-extended many-body quantum chaotic systems in the space direction, just as Hermitian random matrix be…
Height-conserving quantum dimer models
Zheng Yan, Zi Yang Meng, David A. Huse +1
We propose a height-conserving quantum dimer model (hQDM) such that the lattice sum of its associated height field is conserved, and that it admits a Rokhsar-Kivelson (RK) point. T…
Many-Body Quantum Chaos and Space-time Translational Invariance
Amos Chan, Saumya Shivam, David A. Huse +1
We study the consequences of having translational invariance in space and in time in many-body quantum chaotic systems. We consider an ensemble of random quantum circuits, composed…
Quantum Circuits Reproduce Experimental Two-dimensional Many-body Localization Transition Point
Joey Li, Amos Chan, Thorsten B. Wahl
While many studies point towards the existence of many-body localization (MBL) in one dimension, the fate of higher-dimensional strongly disordered systems is a topic of current de…
Spectral Statistics of Non-Hermitian Matrices and Dissipative Quantum Chaos
Jiachen Li, Tomaž Prosen, Amos Chan
We propose a measure, which we call the dissipative spectral form factor (DSFF), to characterize the spectral statistics of non-Hermitian (and non-Unitary) matrices. We show that D…
Spectral Lyapunov exponents in chaotic and localized many-body quantum systems
Amos Chan, Andrea De Luca, J. T. Chalker
We consider the spectral statistics of the Floquet operator for disordered, periodically driven spin chains in their quantum chaotic and many-body localized phases (MBL). The spect…
Spectral statistics in constrained many-body quantum chaotic systems
Sanjay Moudgalya, Abhinav Prem, David A. Huse +1
We study the spectral statistics of spatially-extended many-body quantum systems with on-site Abelian symmetries or local constraints, focusing primarily on those with conserved di…
Classification of symmetry-protected topological phases in two-dimensional many body-localized systems
Joey Li, Amos Chan, Thorsten B. Wahl
We use low-depth quantum circuits, a specific type of tensor networks, to classify two-dimensional symmetry-protected topological many-body localized phases. For (anti-)unitary on-…
Spectral statistics and many-body quantum chaos with conserved charge
Aaron J. Friedman, Amos Chan, Andrea De Luca +1
We investigate spectral statistics in spatially extended, chaotic many-body quantum systems with a conserved charge. We compute the spectral form factor analytically for a m…
Eigenstate Correlations, Thermalization and the Butterfly Effect
Amos Chan, Andrea De Luca, J. T. Chalker
We discuss eigenstate correlations for ergodic, spatially extended many-body quantum systems, in terms of the statistical properties of matrix elements of local observables. While…
Unitary-projective entanglement dynamics
Amos Chan, Rahul M. Nandkishore, Michael Pretko +1
Starting from a state of low quantum entanglement, local unitary time evolution increases the entanglement of a quantum many-body system. In contrast, local projective measurements…
Classification of symmetry-protected topological many-body localized phases in one dimension
Amos Chan, Thorsten B. Wahl
We provide a classification of symmetry-protected topological (SPT) phases of many-body localized (MBL) spin and fermionic systems in one dimension. For spin systems, using tensor…
Spectral statistics in spatially extended chaotic quantum many-body systems
Amos Chan, Andrea De Luca, J. T. Chalker
We study spectral statistics in spatially extended chaotic quantum many-body systems, using simple lattice Floquet models without time-reversal symmetry. Computing the spectral for…
Solution of a minimal model for many-body quantum chaos
Amos Chan, Andrea De Luca, J. T. Chalker
We solve a minimal model for quantum chaos in a spatially extended many-body system. It consists of a chain of sites with nearest-neighbour coupling under Floquet time evolution. Q…