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quant-ph2026
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…
quant-ph2026
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…
quant-ph2025
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…