Dynamical buildup of a quantized hall response from nontopological states
We consider a two-dimensional system initialized in a topologically trivial state before its
Hamiltonian is ramped through a phase transition into a Chern insulator regime. This …
Hamiltonian is ramped through a phase transition into a Chern insulator regime. This …
Dynamical topological invariant after a quantum quench
We show how to define a dynamical topological invariant for one-dimensional two-band
topological systems after a quantum quench. By analyzing general two-band models of …
topological systems after a quantum quench. By analyzing general two-band models of …
Topological marker currents in Chern insulators
Topological states of matter exhibit many novel properties due to the presence of robust
topological invariants such as the Chern index. These global characteristics pertain to the …
topological invariants such as the Chern index. These global characteristics pertain to the …
Hall response and edge current dynamics in Chern insulators out of equilibrium
We investigate the transport properties of Chern insulators following a quantum quench
between topological and nontopological phases. Recent works have shown that this yields …
between topological and nontopological phases. Recent works have shown that this yields …
Topological phase transitions via attosecond x-ray absorption spectroscopy
We present a numerical experiment that demonstrates the possibility to capture topological
phase transitions via an x-ray absorption spectroscopy scheme. We consider a Chern …
phase transitions via an x-ray absorption spectroscopy scheme. We consider a Chern …
Kibble-zurek behavior in disordered chern insulators
Even though no local order parameter in the sense of the Landau theory exists for
topological quantum phase transitions in Chern insulators, the highly nonlocal Berry …
topological quantum phase transitions in Chern insulators, the highly nonlocal Berry …
Quench dynamics and Hall response of interacting Chern insulators
We study the coherent nonequilibrium dynamics of interacting two-dimensional systems
after a quench from a trivial to a topological Chern insulator phase. While the many-body …
after a quench from a trivial to a topological Chern insulator phase. While the many-body …
Nonequilibrium fractional Hall response after a topological quench
We theoretically study the Hall response of a lattice system following a quench where the
topology of a filled band is suddenly changed. In the limit where the physics is dominated by …
topology of a filled band is suddenly changed. In the limit where the physics is dominated by …
Predicting large-Chern-number phases in a shaken optical dice lattice
With respect to the quantum anomalous Hall effect (QAHE), the detection of topological
nontrivial large-Chern-number phases is an intriguing subject. Motivated by recent research …
nontrivial large-Chern-number phases is an intriguing subject. Motivated by recent research …
Tracing the nonequilibrium topological state of Chern insulators
Chern insulators exhibit fascinating properties, which originate from the topologically
nontrivial state characterized by the Chern number. How these properties change if the …
nontrivial state characterized by the Chern number. How these properties change if the …