Sachdev-Ye-Kitaev models and beyond: Window into non-Fermi liquids
This is a review of the Sachdev-Ye-Kitaev (SYK) model of compressible quantum many-
body systems without quasiparticle excitations, and its connections to various theoretical …
body systems without quasiparticle excitations, and its connections to various theoretical …
Finite-temperature transport in one-dimensional quantum lattice models
Over the last decade impressive progress has been made in the theoretical understanding
of transport properties of clean, one-dimensional quantum lattice systems. Many physically …
of transport properties of clean, one-dimensional quantum lattice systems. Many physically …
[HTML][HTML] Time-evolution methods for matrix-product states
Matrix-product states have become the de facto standard for the representation of one-
dimensional quantum many body states. During the last few years, numerous new methods …
dimensional quantum many body states. During the last few years, numerous new methods …
Operator spreading in random unitary circuits
Random quantum circuits yield minimally structured models for chaotic quantum dynamics,
which are able to capture, for example, universal properties of entanglement growth. We …
which are able to capture, for example, universal properties of entanglement growth. We …
Operator hydrodynamics, OTOCs, and entanglement growth in systems without conservation laws
Thermalization and scrambling are the subject of much recent study from the perspective of
many-body quantum systems with locally bounded Hilbert spaces (“spin chains”), quantum …
many-body quantum systems with locally bounded Hilbert spaces (“spin chains”), quantum …
Ergodicity breaking arising from Hilbert space fragmentation in dipole-conserving Hamiltonians
We show that the combination of charge and dipole conservation—characteristic of fracton
systems—leads to an extensive fragmentation of the Hilbert space, which, in turn, can lead …
systems—leads to an extensive fragmentation of the Hilbert space, which, in turn, can lead …
Operator spreading and the emergence of dissipative hydrodynamics under unitary evolution with conservation laws
We study the scrambling of local quantum information in chaotic many-body systems in the
presence of a locally conserved quantity like charge or energy that moves diffusively. The …
presence of a locally conserved quantity like charge or energy that moves diffusively. The …
Diffusive hydrodynamics of out-of-time-ordered correlators with charge conservation
The scrambling of quantum information in closed many-body systems, as measured by out-
of-time-ordered correlation functions (OTOCs), has received considerable attention lately …
of-time-ordered correlation functions (OTOCs), has received considerable attention lately …
Observing emergent hydrodynamics in a long-range quantum magnet
Identifying universal properties of nonequilibrium quantum states is a major challenge in
modern physics. A fascinating prediction is that classical hydrodynamics emerges …
modern physics. A fascinating prediction is that classical hydrodynamics emerges …
Quantum information scrambling in a trapped-ion quantum simulator with tunable range interactions
In ergodic many-body quantum systems, locally encoded quantum information becomes, in
the course of time evolution, inaccessible to local measurements. This concept of …
the course of time evolution, inaccessible to local measurements. This concept of …