33 citations · 96 across the 11 of their papers we have counts for
11 papers
Macroscopic Zero-Mode Manifold Isolated by Quantum Chaos
Cheryne Jonay, Kun W. Kim, Frank Pollmann +1
Chaotic many-body spectra are expected to densely fill their energy window. We show that constrained spin chains with chiral symmetry evade this expectation by hosting an exponenti…
Loop Charges and Fragmentation in Pairwise Difference Conserving Circuits
Pavel Orlov, Cheryne Jonay, Tomaž Prosen
In this work, we introduce a broad class of circuits, or quantum cellular automata, which we call 'pairwise-difference-conserving circuits' (PDC). These models are characterized by…
Localized Fock Space Cages in Kinetically Constrained Models
Cheryne Jonay, Frank Pollmann
We investigate a mechanism for non-ergodic behavior in many-body quantum systems arising from destructive interference, leading to localization in Fock space. Drawing parallels wit…
Quantum chaos at finite temperature in local spin Hamiltonians
Christopher M. Langlett, Cheryne Jonay, Vedika Khemani +1
Understanding the emergence of chaos in many-body quantum systems away from semi-classical limits, particularly in spatially local interacting spin Hamiltonians, has been a long-st…
Two-stage relaxation of operators through domain wall and magnon dynamics
Cheryne Jonay, Cathy Li, Tianci Zhou
The out-of-time ordered correlator (OTOC) has become a popular probe for quantum information spreading and thermalization. In systems with local interactions, the OTOC defines a ch…
A Physical Theory of Two-stage Thermalization
Cheryne Jonay, Tianci Zhou
One indication of thermalization time is subsystem entanglement reaching thermal values. Recent studies on local quantum circuits reveal two exponential stages with decay rates $r_…
Quantifying quantum chaos through microcanonical distributions of entanglement
Joaquin F. Rodriguez-Nieva, Cheryne Jonay, Vedika Khemani
A characteristic feature of "quantum chaotic" systems is that their eigenspectra and eigenstates display universal statistical properties described by random matrix theory (RMT). H…
Slow thermalization and subdiffusion in conserving Floquet random circuits
Cheryne Jonay, Joaquin F. Rodriguez-Nieva, Vedika Khemani
Random quantum circuits are paradigmatic models of minimally structured and analytically tractable chaotic dynamics. We study a family of Floquet unitary circuits with Haar random…
Tri-unitary quantum circuits
Cheryne Jonay, Vedika Khemani, Matteo Ippoliti
We introduce a novel class of quantum circuits that are unitary along three distinct "arrows of time". These dynamics share some of the analytical tractability of "dual-unitary" ci…
Ultrafast Variational Simulation of Non-trivial Quantum States with Long Range Interactions
Wen Wei Ho, Cheryne Jonay, Timothy H. Hsieh
State preparation protocols ideally require as minimal operations as possible, in order to be implemented in near-term, potentially noisy quantum devices. Motivated by long range i…
Coarse-grained dynamics of operator and state entanglement
Cheryne Jonay, David A. Huse, Adam Nahum
We give a detailed theory for the leading coarse-grained dynamics of entanglement entropy of states and of operators in generic short-range interacting quantum many-body systems. T…