Showing cond-mat.stat-mechShow all
3 papers · 1 filter
cond-mat.stat-mech2025
Entropy of small subsystems in thermalizing systems
Yichen Huang
We study the entropy of small subsystems in thermalizing quantum many-body systems governed by local Hamiltonians. Assuming the eigenstate thermalization hypothesis, we derive an a…
cond-mat.stat-mech2024
Random product states at high temperature equilibrate exponentially well
Yichen Huang
We prove that for all but a measure zero set of local Hamiltonians, starting from random product states at sufficiently high but finite temperature, with overwhelming probability e…
cond-mat.stat-mech2024
High-precision simulation of finite-size thermalizing systems at long times
Yichen Huang
To simulate thermalizing systems at long times, the most straightforward approach is to calculate the thermal properties at the corresponding energy. In a quantum many-body system…