288 citations · 1.7k across the 40 of their papers we have counts for
18 papers · 1 filter
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…
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…
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…
Extensive entropy from unitary evolution
Yichen Huang
In quantum many-body systems, a Hamiltonian is called an ``extensive entropy generator'' if starting from a random product state the entanglement entropy obeys a volume law at long…
Entanglement Dynamics From Random Product States: Deviation From Maximal Entanglement
Yichen Huang
We study the entanglement dynamics of quantum many-body systems and prove the following: (I) For any geometrically local Hamiltonian on a lattice, starting from a random product st…
Dynamics of Rényi entanglement entropy in diffusive qudit systems
Yichen Huang
My previous work [arXiv:1902.00977] studied the dynamics of Rényi entanglement entropy in local quantum circuits with charge conservation. Initializing the system in a random…