activity
20102023
most citedComputing quantum discord is NP-complete

288 citations · 1.7k across the 40 of their papers we have counts for

collaborators

40 papers

quant-ph2023★ 1 cited

Long-time properties of generic Floquet systems are approximately periodic with the driving period

Yichen Huang

A Floquet quantum system is governed by a Hamiltonian that is periodic in time. Consider the space of piecewise time-independent Floquet systems with (geometrically) local interact…

cond-mat.stat-mech2023

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…

cond-mat.stat-mech2022★ 1 cited

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…

quant-ph2022★ 1 cited

Deviation from maximal entanglement for mid-spectrum eigenstates of local Hamiltonians

Yichen Huang

In a spin chain governed by a local Hamiltonian, we consider a microcanonical ensemble in the middle of the energy spectrum and a contiguous subsystem whose length is a constant fr…

cond-mat.dis-nn2021★ 3 cited

Adding boundary terms to Anderson localized Hamiltonians leads to unbounded growth of entanglement

Yichen Huang

It is well known that in Anderson localized systems, starting from a random product state the entanglement entropy remains bounded at all times. However, we show that adding a sing…

quant-ph2021★ 4 cited

Locally accurate matrix product approximation to thermal states

Yichen Huang

In one-dimensional quantum systems with short-range interactions, a set of leading numerical methods is based on matrix product states, whose bond dimension determines the amount o…