796 citations · 1k across the 6 of their papers we have counts for
6 papers
Route towards classical frustration and band flattening via optical lattice distortion
Pil Saugmann, José Vargas, Yann Kiefer +4
We propose and experimentally explore a method for realizing frustrated lattice models using a Bose-Einstein condensate held in an optical square lattice. A small lattice distortio…
Orbital many-body dynamics of bosons in the second Bloch band of an optical lattice
J. Vargas, M. Nuske, R. Eichberger +3
A Bose-Einstein condensate (BEC) of rubidium atoms is prepared in one of two degenerate energy minima in the second Bloch band of an optical square lattice. A subsequent oscillatio…
Metastable order protected by destructive many-body interference
M. Nuske, J. Vargas, M. Hachmann +3
The phenomenon of metastability can shape dynamical processes on all temporal and spatial scales. Here, we induce metastable dynamics by pumping ultracold bosonic atoms from the lo…
Floquet boundary states in AB-stacked graphite
Hernan L. Calvo, Jose E. Barrios Vargas, Luis E. F. Foa Torres
We report on the effect of laser illumination with circularly polarized light on the electronic structure of AB-stacked graphite samples. By using Floquet theory in combination wit…
Non-Hermitian robust edge states in one-dimension: Anomalous localization and eigenspace condensation at exceptional points
V. M. Martinez Alvarez, J. E. Barrios Vargas, L. E. F. Foa Torres
Capital to topological insulators, the bulk-boundary correspondence ties a topological invariant computed from the bulk (extended) states with those at the boundary, which are henc…
Charge Transport in Polycrystalline Graphene: Challenges and Opportunities
Aron W. Cummings, Dinh Loc Duong, Van Luan Nguyen +5
Graphene has attracted significant interest both for exploring fundamental science and for a wide range of technological applications. Chemical vapor deposition (CVD) is currently…