Full counting statistics of charge in chaotic many-body quantum systems

E McCulloch, J De Nardis, S Gopalakrishnan… - Physical review …, 2023 - APS
We investigate the full counting statistics of charge transport in U (1)-symmetric random
unitary circuits. We consider an initial mixed state prepared with a chemical potential …

Neural-network solutions to stochastic reaction networks

Y Tang, J Weng, P Zhang - Nature Machine Intelligence, 2023 - nature.com
The stochastic reaction network in which chemical species evolve through a set of reactions
is widely used to model stochastic processes in physics, chemistry and biology. To …

Learning nonequilibrium statistical mechanics and dynamical phase transitions

Y Tang, J Liu, J Zhang, P Zhang - Nature Communications, 2024 - nature.com
Nonequilibrium statistical mechanics exhibit a variety of complex phenomena far from
equilibrium. It inherits challenges of equilibrium, including accurately describing the joint …

Efficient simulations of epidemic models with tensor networks: Application to the one-dimensional susceptible-infected-susceptible model

W Merbis, C de Mulatier, P Corboz - Physical Review E, 2023 - APS
The contact process is an emblematic model of a nonequilibrium system, containing a phase
transition between inactive and active dynamical regimes. In the epidemiological context …

Optimal sampling of dynamical large deviations in two dimensions via tensor networks

L Causer, MC Bañuls, JP Garrahan - Physical Review Letters, 2023 - APS
We use projected entangled-pair states (PEPS) to calculate the large deviation statistics of
the dynamical activity of the two-dimensional East model, and the two-dimensional …

Quantum turnstiles for robust measurement of full counting statistics

R Samajdar, E McCulloch, V Khemani… - arXiv preprint arXiv …, 2023 - arxiv.org
We present a scalable protocol for measuring full counting statistics (FCS) in experiments or
tensor-network simulations. In this method, an ancilla in the middle of the system acts as a …

[HTML][HTML] Using tensor network states for multi-particle Brownian ratchets

NE Strand, H Vroylandt, TR Gingrich - The Journal of Chemical …, 2022 - pubs.aip.org
The study of Brownian ratchets has taught how time-periodic driving supports a time-
periodic steady state that generates nonequilibrium transport. When a single particle is …

Slow dynamics and large deviations in classical stochastic Fredkin chains

L Causer, JP Garrahan, A Lamacraft - Physical Review E, 2022 - APS
The Fredkin spin chain serves as an interesting theoretical example of a quantum
Hamiltonian whose ground state exhibits a phase transition between three distinct phases …

Quantifying rare events in stochastic reaction-diffusion dynamics using tensor networks

SB Nicholson, TR Gingrich - Physical Review X, 2023 - APS
The interplay between stochastic chemical reactions and diffusion can generate rich
spatiotemporal patterns. While the timescale for individual reaction or diffusion events may …

Delocalization-localization dynamical phase transition of random walks on graphs

G Carugno, P Vivo, F Coghi - Physical Review E, 2023 - APS
We consider random walks evolving on two models of connected and undirected graphs
and study the exact large deviations of a local dynamical observable. We prove, in the …