Non-hermitian physics
A review is given on the foundations and applications of non-Hermitian classical and
quantum physics. First, key theorems and central concepts in non-Hermitian linear algebra …
quantum physics. First, key theorems and central concepts in non-Hermitian linear algebra …
Topological quantum matter with cold atoms
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 …
Topological quantum phases, originally discovered and investigated in condensed matter …
Topological Euler class as a dynamical observable in optical lattices
The last years have witnessed rapid progress in the topological characterization of out-of-
equilibrium systems. We report on robust signatures of a new type of topology—the Euler …
equilibrium systems. We report on robust signatures of a new type of topology—the Euler …
Topological quantum walks in momentum space with a Bose-Einstein condensate
We report the experimental implementation of discrete-time topological quantum walks of a
Bose-Einstein condensate in momentum space. Introducing stroboscopic driving sequences …
Bose-Einstein condensate in momentum space. Introducing stroboscopic driving sequences …
Dynamical quantum phase transitions in non-Hermitian lattices
In closed quantum systems, dynamical phase transitions are identified by the nonanalytic
behavior of the return probability as a function of time. In this work, we study the nonunitary …
behavior of the return probability as a function of time. In this work, we study the nonunitary …
Detecting non-Bloch topological invariants in quantum dynamics
Non-Bloch topological invariants preserve the bulk-boundary correspondence in non-
Hermitian topological systems, and are a key concept in the contemporary study of non …
Hermitian topological systems, and are a key concept in the contemporary study of non …
Floquet dynamical quantum phase transitions
Dynamical quantum phase transitions (DQPTs) are manifested by time-domain nonanalytic
behaviors of many-body systems. Introducing a quench is so far understood as a typical …
behaviors of many-body systems. Introducing a quench is so far understood as a typical …
Observation of a dynamical quantum phase transition by a superconducting qubit simulation
A dynamical quantum phase transition can occur during time evolution of sudden quenched
quantum systems across a phase transition. It corresponds to the nonanalytic behavior at a …
quantum systems across a phase transition. It corresponds to the nonanalytic behavior at a …
Observation of emergent momentum–time skyrmions in parity–time-symmetric non-unitary quench dynamics
Topology in quench dynamics gives rise to intriguing dynamic topological phenomena,
which are intimately connected to the topology of static Hamiltonians yet challenging to …
which are intimately connected to the topology of static Hamiltonians yet challenging to …
Topology of one-dimensional quantum systems out of equilibrium
We study the topological properties of one-dimensional systems undergoing unitary time
evolution. We show that symmetries possessed both by the initial wave function and by the …
evolution. We show that symmetries possessed both by the initial wave function and by the …