22 citations · 178 across the 20 of their papers we have counts for
8 papers · 1 filter
Single-eigenstate test of eigenstate thermalization hypothesis via perturbed eigenstate quench
Zhouhao Guo, Jiaju Zhang
We propose and numerically validate an efficient single-eigenstate diagnostic for the eigenstate thermalization hypothesis (ETH) based on a perturbed eigenstate quench protocol. By…
Discrete power-law decay of subsystem distance after a quantum quench
Bin Sui, Jiaju Zhang
We present a numerical study of subsystem distance decay following a global quantum quench in the infinite one-dimensional transverse-field Ising chain, using the mathematically ri…
Additivity of disjoint interval entanglement in quasiparticle excited states
Zhouhao Guo, Jiaju Zhang
We investigate mixed-state entanglement measures, namely reflected entropy, mutual information and logarithmic negativity, for two disjoint intervals in one-dimensional systems exc…
Efficient computation of average subsystem Bures distance between fermionic Gaussian states
Zhouhao Guo, M. A. Rajabpour, Jiaju Zhang
The average subsystem trace distance has been proposed as an indicator of quantum many-body chaos and integrability. However, evaluating it presents two main difficulties: high com…
Volume-law entanglement fragmentation of quasiparticles
Jiaju Zhang
We investigate the entanglement entropy in quantum states featuring repeated sequential excitations of unit patterns in momentum space. In the scaling limit, each unit pattern cont…
Subsystem Evolution Speed as Indicator of Relaxation
Jiaju Zhang, M. A. Rajabpour, Markus Heyl +1
In studying the time evolution of isolated many-body quantum systems, a key focus is determining whether the system undergoes relaxation and reaches a steady state at a given point…
Bootstrapping entanglement in quantum spin systems
Jiaju Zhang, Arash Jafarizadeh, M. A. Rajabpour
In this paper, we employ the bootstrap method, a technique that relies on consistency relations instead of direct diagonalization, to determine the expectation values in quantum ma…
Shannon entropy in quasiparticle states of quantum chains
Wentao Ye, Jiaju Zhang
We investigate the Shannon entropy of the total system and its subsystems, as well as the subsystem Shannon mutual information, in quasiparticle excited states of free bosonic and…