288 citations · 1.7k across the 40 of their papers we have counts for
7 papers · 1 filter
Quantum entropy thermalization
Yichen Huang, Aram W. Harrow
In an isolated quantum many-body system undergoing unitary evolution, the entropy of a subsystem (smaller than half the system size) thermalizes if at long times, it is to leading…
Thermalization without eigenstate thermalization
Aram W. Harrow, Yichen Huang
In an isolated quantum many-body system undergoing unitary evolution, we study the thermalization of a subsystem, treating the rest of the system as a bath. In this setting, the ei…
Finite-size scaling analysis of eigenstate thermalization
Yichen Huang
We study the fluctuations of eigenstate expectation values in a microcanonical ensemble. Assuming the eigenstate thermalization hypothesis, an analytical formula for the finite-siz…
Absence of temporal order in states with spatial correlation decay
Yichen Huang
In quantum lattice systems, we prove that any stationary state with power-law (or even exponential) decay of spatial correlations has vanishing macroscopic temporal order in the th…
Is microcanonical ensemble stable?
Yichen Huang
No, in a rigorous sense specified below.
Entanglement dynamics in critical random quantum Ising chain with perturbations
Yichen Huang
We simulate the entanglement dynamics in a critical random quantum Ising chain with generic perturbations using the time-evolving block decimation algorithm. Starting from a produc…