Thouless pumping and topology
R Citro, M Aidelsburger - Nature Reviews Physics, 2023 - nature.com
Thouless pumping provides one of the simplest manifestations of topology in quantum
systems and has attracted a lot of recent interest, both theoretically and experimentally …
systems and has attracted a lot of recent interest, both theoretically and experimentally …
A Thouless quantum pump with ultracold bosonic atoms in an optical superlattice
Topological charge pumping enables the transport of charge through an adiabatic cyclic
evolution of the underlying Hamiltonian. In contrast to classical transport, the transported …
evolution of the underlying Hamiltonian. In contrast to classical transport, the transported …
Topological Thouless pumping of ultracold fermions
An electron gas in a one-dimensional periodic potential can be transported even in the
absence of a voltage bias if the potential is slowly and periodically modulated in time …
absence of a voltage bias if the potential is slowly and periodically modulated in time …
Synthetic spin-orbit coupling in an optical lattice clock
We propose the use of optical lattice clocks operated with fermionic alkaline-earth atoms to
study spin-orbit coupling (SOC) in interacting many-body systems. The SOC emerges …
study spin-orbit coupling (SOC) in interacting many-body systems. The SOC emerges …
Geometrical pumping with a Bose-Einstein condensate
We realized a quantum geometric “charge” pump for a Bose-Einstein condensate (BEC) in
the lowest Bloch band of a novel bipartite magnetic lattice. Topological charge pumps in …
the lowest Bloch band of a novel bipartite magnetic lattice. Topological charge pumps in …
Multiparticle Wannier states and Thouless pumping of interacting bosons
The study of topological effects in physics is a hot area of research, and only recently have
researchers been able to address the important issues of topological properties of …
researchers been able to address the important issues of topological properties of …
Simulating and exploring Weyl semimetal physics with cold atoms in a two-dimensional optical lattice
We propose a scheme to simulate and explore Weyl semimetal physics with ultracold
fermionic atoms in a two-dimensional square optical lattice subjected to experimentally …
fermionic atoms in a two-dimensional square optical lattice subjected to experimentally …
Fibonacci optical lattices for tunable quantum quasicrystals
We describe a quasiperiodic optical lattice, created by a physical realization of the abstract
cut-and-project construction underlying all quasicrystals. The resulting potential is a …
cut-and-project construction underlying all quasicrystals. The resulting potential is a …
Topological charge pumping by a sliding moiré pattern
M Fujimoto, H Koschke, M Koshino - Physical Review B, 2020 - APS
We study the adiabatic topological charge pumping driven by interlayer sliding in the moiré
superlattices. We show that, when we slide a single layer of the twisted bilayer system …
superlattices. We show that, when we slide a single layer of the twisted bilayer system …
Fractional charge pumping of interacting bosons in one-dimensional superlattice
Motivated by experimental realizations of integer quantized charge pumping in one-
dimensional superlattices [Nat. Phys. 12, 350 (2016) 1745-2473 10.1038/nphys3584; Nat …
dimensional superlattices [Nat. Phys. 12, 350 (2016) 1745-2473 10.1038/nphys3584; Nat …