Quantum many-body scars and weak breaking of ergodicity

M Serbyn, DA Abanin, Z Papić - Nature Physics, 2021 - nature.com
Thermalization is the inevitable fate of many complex quantum systems, whose dynamics
allow them to fully explore the vast configuration space regardless of the initial state—the …

Measurement-induced phase transitions in the dynamics of entanglement

B Skinner, J Ruhman, A Nahum - Physical Review X, 2019 - APS
We define dynamical universality classes for many-body systems whose unitary evolution is
punctuated by projective measurements. In cases where such measurements occur …

Periodic orbits, entanglement, and quantum many-body scars in constrained models: Matrix product state approach

WW Ho, S Choi, H Pichler, MD Lukin - Physical review letters, 2019 - APS
We analyze quantum dynamics of strongly interacting, kinetically constrained many-body
systems. Motivated by recent experiments demonstrating surprising long-lived, periodic …

Tangent-space methods for uniform matrix product states

L Vanderstraeten, J Haegeman… - SciPost Physics Lecture …, 2019 - scipost.org
In these lecture notes we give a technical overview of tangent-space methods for matrix
product states in the thermodynamic limit. We introduce the manifold of uniform matrix …

Simulating groundstate and dynamical quantum phase transitions on a superconducting quantum computer

J Dborin, V Wimalaweera, F Barratt, E Ostby… - Nature …, 2022 - nature.com
The phenomena of quantum criticality underlie many novel collective phenomena found in
condensed matter systems. They present a challenge for classical and quantum simulation …

Bridging entanglement dynamics and chaos in semiclassical systems

A Lerose, S Pappalardi - Physical Review A, 2020 - APS
It is widely recognized that entanglement generation and dynamical chaos are intimately
related in semiclassical models via the process of decoherence. In this paper, we propose a …

Slow quantum thermalization and many-body revivals from mixed phase space

AA Michailidis, CJ Turner, Z Papić, DA Abanin… - Physical Review X, 2020 - APS
The relaxation of few-body quantum systems can strongly depend on the initial state when
the system's semiclassical phase space is mixed; ie, regions of chaotic motion coexist with …

Weak ergodicity breaking through the lens of quantum entanglement

Z Papić - Entanglement in Spin Chains: From Theory to Quantum …, 2022 - Springer
Recent studies of interacting systems of quantum spins, ultracold atoms, and correlated
fermions have shed a new light on how isolated many-body systems can avoid rapid …

Eigenstate thermalization and quantum chaos in the Holstein polaron model

D Jansen, J Stolpp, L Vidmar, F Heidrich-Meisner - Physical Review B, 2019 - APS
The eigenstate thermalization hypothesis (ETH) is a successful theory that provides
sufficient criteria for ergodicity in quantum many-body systems. Most studies were carried …

Measurement-induced phase transitions by matrix product states scaling

G Cecile, H Lóio, J De Nardis - Physical Review Research, 2024 - APS
We study the time evolution of long quantum spin chains subjected to continuous monitoring
projected on matrix product states (MPS) with fixed bond dimension, by means of the Time …