4 papers
Optimal Disorder Strength for Approximate Unitary -Designs in Spin Chains
Tian-Gang Zhou, Yi-Neng Zhou, Thierry Giamarchi +1
Quantum simulators with disordered spin Hamiltonians offer a natural route to Haar-like unitary ensembles, but face a competition. Disorder enhances randomness, yet strong disorder…
Solvable Random Unitary Dynamics in a Disordered Tomonaga-Luttinger Liquid
Tian-Gang Zhou, Thierry Giamarchi
Disordered one-dimensional interacting systems have long been characterized via conventional correlation functions. A complementary quantum-information perspective quantifies the r…
Scrambling Dynamics with Imperfections in a Solvable Model
Nadie Yiluo LiTenn, Tianci Zhou, Brian Swingle
We study how probes of quantum scrambling dynamics respond to two kinds of imperfections -- unequal forward and backward evolutions and decoherence -- in a solvable Brownian circui…
The Magnetic Maze: A System With Tunable Scale Invariance
Tian-Gang Zhou, Michael Winer, Brian Swingle
Random magnetic field configurations are ubiquitous in nature. Such fields lead to a variety of dynamical phenomena, including localization and glassy physics in some condensed mat…