Many versus one: The disorder operator and entanglement entropy in fermionic quantum matter

W Jiang, BB Chen, ZH Liu, J Rong, FF Assaad… - SciPost Physics, 2023 - scipost.org
Motivated by recent development of the concept of the disorder operator and its relation with
entanglement entropy in bosonic systems, here we show the disorder operator successfully …

A sport and a pastime: Model design and computation in quantum many-body systems

G Pan, W Jiang, ZY Meng - Chinese Physics B, 2022 - iopscience.iop.org
We summarize the recent developments in the model design and computation for a few
representative quantum many-body systems, encompassing quantum critical metals beyond …

Normal state properties of quantum critical metals at finite temperature

A Klein, AV Chubukov, Y Schattner, E Berg - Physical Review X, 2020 - APS
We study the effects of finite temperature on normal state properties of a metal near a
quantum critical point to an antiferromagnetic or Ising-nematic state. At T= 0, bosonic and …

Yukawa-SYK model and self-tuned quantum criticality

G Pan, W Wang, A Davis, Y Wang, ZY Meng - Physical Review Research, 2021 - APS
Non-Fermi liquids (NFLs) are a class of strongly interacting gapless fermionic systems
without long-lived quasiparticle excitations. An important group of NFL models feature …

Identification of non-Fermi liquid fermionic self-energy from quantum Monte Carlo data

XY Xu, A Klein, K Sun, AV Chubukov, ZY Meng - npj Quantum Materials, 2020 - nature.com
Abstract Quantum Monte Carlo (QMC) simulations of correlated electron systems provide
unbiased information about system behavior at a quantum critical point (QCP) and can verify …