Topological quantum matter with cold atoms

DW Zhang, YQ Zhu, YX Zhao, H Yan… - Advances in Physics, 2018 - Taylor & Francis
This is an introductory review of the physics of topological quantum matter with cold atoms.
Topological quantum phases, originally discovered and investigated in condensed matter …

Dynamical phase transitions in the collisionless pre-thermal states of isolated quantum systems: theory and experiments

J Marino, M Eckstein, MS Foster… - Reports on Progress in …, 2022 - iopscience.iop.org
We overview the concept of dynamical phase transitions (DPTs) in isolated quantum
systems quenched out of equilibrium. We focus on non-equilibrium transitions characterized …

Observation of dynamical vortices after quenches in a system with topology

N Fläschner, D Vogel, M Tarnowski, BS Rem… - Nature Physics, 2018 - nature.com
Topological phases constitute an exotic form of matter characterized by non-local properties
rather than local order parameters. The paradigmatic Haldane model on a hexagonal lattice …

Measuring topology from dynamics by obtaining the Chern number from a linking number

M Tarnowski, FN Ünal, N Fläschner, BS Rem… - Nature …, 2019 - nature.com
Integer-valued topological indices, characterizing nonlocal properties of quantum states of
matter, are known to directly predict robust physical properties of equilibrium systems. The …

Uncover topology by quantum quench dynamics

W Sun, CR Yi, BZ Wang, WW Zhang, BC Sanders… - Physical review …, 2018 - APS
Topological quantum states are characterized by nonlocal invariants. We present a new
dynamical approach for ultracold-atom systems to uncover their band topology, and we …

Dynamical classification of topological quantum phases

L Zhang, L Zhang, S Niu, XJ Liu - Science Bulletin, 2018 - Elsevier
Topological phase of matter is now a mainstream of research in condensed matter physics,
of which the classification, synthesis, and detection of topological states have brought …

Scheme to measure the topological number of a Chern insulator from quench dynamics

C Wang, P Zhang, X Chen, J Yu, H Zhai - Physical review letters, 2017 - APS
We show how the topological number of a static Hamiltonian can be measured from a
dynamical quench process. We focus on a two-band Chern insulator in two dimension, for …

Observation of symmetry-protected topological band with ultracold fermions

B Song, L Zhang, C He, TFJ Poon, E Hajiyev… - Science …, 2018 - science.org
Symmetry plays a fundamental role in understanding complex quantum matter, particularly
in classifying topological quantum phases, which have attracted great interests in the recent …

Topological quantum walks in momentum space with a Bose-Einstein condensate

D **e, TS Deng, T **ao, W Gou, T Chen, W Yi, B Yan - Physical Review Letters, 2020 - APS
We report the experimental implementation of discrete-time topological quantum walks of a
Bose-Einstein condensate in momentum space. Introducing stroboscopic driving sequences …

Dynamical topological quantum phase transitions for mixed states

M Heyl, JC Budich - Physical Review B, 2017 - APS
We introduce and study the dynamical probes of band-structure topology in the postquench
time evolution of quantum many-body systems initialized in mixed states. Our construction …