644 citations · 2.5k across the 50 of their papers we have counts for
10 papers · 1 filter
Topological Thouless Pumping of Ultracold Fermions
Shuta Nakajima, Takafumi Tomita, Shintaro Taie +5
A gas of electrons in a one-dimensional periodic potential can be transported even in the absence of a voltage bias if the potential is modulated slowly and periodically in time. R…
Thermodynamics and magnetic properties of the anisotropic 3D Hubbard model
Jakub Imriška, Mauro Iazzi, Lei Wang +7
We study the 3D Hubbard model with anisotropic nearest neighbor tunneling amplitudes using the dynamical cluster approximation and compare the results with a quantum simulation exp…
Seeing Hofstadter's Butterfly in Atomic Fermi Gases
Lei Wang, Matthias Troyer
We propose a novel way to detect the fractal energy spectrum of the Hofstadter model from the density distributions of ultracold fermions in an external trap. At low temperature, t…
Ferromagnetism of the Repulsive Atomic Fermi Gas: three-body recombination and domain formation
Ilia Zintchenko, Lei Wang, Matthias Troyer
The simplest model for itinerant ferromagnetism, the Stoner model, has so far eluded experimental observation in repulsive ultracold fermions due to rapid three-body recombination…
Direct measurement of topological invariants in optical lattices
Lei Wang, Alexey A. Soluyanov, Matthias Troyer
We propose an experimental technique for classifying the topology of band structures realized in optical lattices, based on a generalization of topological charge pumping in quantu…
Topological charge pumping in a one-dimensional optical lattice
Lei Wang, Matthias Troyer, Xi Dai
A topological charge pump [1] transfers charge in a quantized fashion. The quantization is stable against the detailed form of the pumping protocols and external noises and shares…