Tuning the mobility of a driven Bose-Einstein condensate via diabatic Floquet bands
arXiv:1202.5174 · doi:10.1103/PhysRevLett.110.135302
Abstract
We study the response of ultracold atoms to a weak force in the presence of a temporally strongly modulated optical lattice potential. It is experimentally demonstrated that the strong ac-driving allows for a tailoring of the mobility of a dilute atomic Bose-Einstein condensate with the atoms moving ballistically either along or against the direction of the applied force. Our results are in agreement with a theoretical analysis of the Floquet spectrum of a model system, thus revealing the existence of diabatic Floquet bands in the atom's band spectra and highlighting their role in the non-equilibrium transport of the atoms.
References in corpus (15)
- Many-Body Physics with Ultracold Gases
- Artificial Brownian motors: Controlling transport on the nanoscale
- Creating, moving and merging Dirac points with a Fermi gas in a tunable honeycomb lattice
- Dynamical control of matter-wave tunneling in periodic potentials
- Tunable gauge potential for neutral and spinless particles in driven lattices
- Non-Abelian gauge fields and topological insulators in shaken optical lattices
- Coherent control of dressed matter waves
- Control of Interaction-Induced Dephasing of Bloch Oscillations
- Observation of photon-assisted tunneling in optical lattices
- Absolute negative mobility induced by thermal equilibrium fluctuations
- Periodically driven Quantum Ratchets: Symmetries and Resonances
- Directed Chaotic Transport in Hamiltonian Ratchets
- Klein-Tunneling of a Quasirelativistic Bose-Einstein Condensate in an Optical Lattice
- Driven optical lattices as strong-field simulators
- Dressed matter waves
Cited by in corpus (22)
- Universal High-Frequency Behavior of Periodically Driven Systems: from Dynamical Stabilization to Floquet Engineering
- Atomic quantum gases in periodically driven optical lattices
- Symmetries and selection rules in Floquet systems: application to harmonic generation in nonlinear optics
- Tunable transport with broken space-time symmetries
- Adiabatic Perturbation Theory and Geometry of Periodically-Driven Systems
- Negative differential conductivity in an interacting quantum gas
- Absolute negative mobility induced by white Poissonian noise
- Transport in Floquet-Bloch bands
- Nonequilibrium relaxation transport of ultracold atoms
- Interaction-induced conducting-nonconducting transition of ultra-cold atoms in 1D optical lattices
- Transport with ultracold atoms at constant density
- Relaxation Dynamics of Meso-Reservoirs
- Topological pumping assisted by Bloch oscillations
- Excitation of atoms in an optical lattice driven by polychromatic amplitude modulation
- Absence of Criticality in the Phase Transitions of Open Floquet Systems
- Asymptotic theory of quasiperiodically driven quantum systems
- Exposing local symmetries in distorted driven lattices via time-averaged invariants
- Dynamic renormalization group theory for open Floquet systems
- Transport controlled by Poincaré orbit topology in a driven inhomogeneous lattice gas
- Symmetries and transport in site-dependently driven quantum lattices
- Site-selective particle deposition in periodically driven quantum lattices
- Topological Phase Diagram of Optimally Shaken Honeycomb Lattices: A Dual Perspective from Stroboscopic and Non-Stroboscopic Floquet Hamiltonians