Adiabatic preparation of vortex lattices
arXiv:1306.4611 · doi:10.1103/PhysRevA.88.033603
Abstract
By engineering appropriate artificial gauge potentials, a Bose-Einstein condensate can be adiabatically loaded into a current carrying state that resembles a vortex lattice of a rotating uniform Bose gas. We give two explicit, experimentally feasible protocols by which vortex lattices can be smoothly formed from a condensate initially at rest. In the first example we show how this can be achieved by adiabatically loading a uniform BEC into an optical flux lattice, formed from coherent optical coupling of internal states of the atom. In the second example we study a tight binding model that is continuously manipulated in parameter space such that it smoothly transforms into the Harper-Hofstadter model with 1/3 flux per plaquette.
v2 -- some corrections to the main text; reformatted figures
References in corpus (12)
- Single-Atom Resolved Fluorescence Imaging of an Atomic Mott Insulator
- Tunable gauge potential for neutral and spinless particles in driven lattices
- Non-Abelian gauge fields and topological insulators in shaken optical lattices
- Observation of photon-assisted tunneling in optical lattices
- Optical Flux Lattices for Ultracold Atomic Gases
- Reaching Fractional Quantum Hall States with Optical Flux Lattices
- Condensed Groundstates of Frustrated Bose-Hubbard Models
- Experimental realization of strong effective magnetic fields in optical superlattice potentials
- Interacting Hofstadter spectrum of atoms in an artificial gauge field
- Bogoliubov theory of interacting bosons on a lattice in a synthetic magnetic field
- Flux lattices reformulated
- Degeneracy of Many-body Quantum States in an Optical Lattice with a Uniform Magnetic Field
Cited by in corpus (6)
- Realization of the Hofstadter Hamiltonian with ultracold atoms in optical lattices
- Topological Bands for Ultracold Atoms
- Dynamic Optical Superlattices with Topological Bands
- Perturbative Approach to Flat Chern Bands in the Hofstadter Model
- Strongly interacting bosons on a three-leg ladder in the presence of a homogeneous flux
- Loading Ultracold Gases in Topological Floquet Bands: Current and Center-of-Mass Responses