Interaction Driven Interband Tunneling of Bosons in the Triple Well
arXiv:1011.4219 · doi:10.1088/1367-2630/13/3/033032
Abstract
We study the tunneling of a small ensemble of strongly repulsive bosons in a one-dimensional triple-well potential. The usual treatment within the single-band approximation suggests suppression of tunneling in the strong interaction regime. However, we show that several windows of enhanced tunneling are opened in this regime. This enhanced tunneling results from higher band contributions, and has the character of interband tunneling. It can give rise to various tunneling processes, such as single-boson tunneling and two-boson correlated tunneling of the ensemble of bosons, and is robust against deformations of the triple well potential. We introduce a basis of generalized number states including all contributing bands to explain the interband tunneling, and demonstrate various processes of interband tunneling and its robustness by numerically exact calculation.
References in corpus (40)
- Many-Body Physics with Ultracold Gases
- Quantum phase transition from a superfluid to a Mott insulator in a gas of ultracold atoms
- Feshbach Resonances in Ultracold Gases
- Cold bosonic atoms in optical lattices
- Atomic Scattering in Presence of an External Confinement and a Gas of Impenetrable Bosons
- Direct Observation of Tunneling and Nonlinear Self-Trapping in a single Bosonic Josephson Junction
- Quantum Coherent Atomic Tunneling between Two Trapped Bose-Einstein Condensates
- Production of cold molecules via magnetically tunable Feshbach resonances
- The cold atom Hubbard toolbox
- Repulsively bound atom pairs in an optical lattice
- Exciting Collective Oscillations in a Trapped 1D Gas
- Atom-Atom Scattering Under Cylindrical Harmonic Confinement: Numerical and Analytical Studies of the Confinement Induced Resonance
- Nonlinear Self-Trapping of Matter Waves in Periodic Potentials
- Atomic quantum gases in Kagomé lattices
- Exact quantum dynamics of a bosonic Josephson junction
- Few-boson dynamics in double wells: From single-atom to correlated-pair tunneling
- Effective three-body interactions of neutral bosons in optical lattices
- Josephson Oscillation and Transition to Self-Trapping for Bose-Einstein-Condensates in a Triple-Well Trap
- Realization of a single Josephson junction for Bose-Einstein condensates
- Transistor-Like Behavior of a Bose-Einstein Condensate in a Triple Well Potential
- Ultracold Bosons in a Tilted Multi-level Double-Well Potential
- Pathway from condensation via fragmentation to fermionization of cold bosonic systems
- Zoo of quantum phases and excitations of cold bosonic atoms in optical lattices
- Ultracold Few-Boson Systems in a Double-Well Trap
- Ground-state properties of one-dimensional ultracold Bose gases in a hard-wall trap
- Evolution from a Bose-Einstein condensate to a Tonks-Girardeau gas: An exact diagonalization study
- Correlations in Ultracold Trapped Few-Boson Systems: Transition from Condensation to Fermionization
- Tunneling dynamics of few bosons in a double well
- Suppression of Quantum Scattering in Strongly Confined Systems
- Dynamical Realization of Macroscopic Superposition States of Cold Bosons in a Tilted Double Well
- Atomtronics with holes: Coherent transport of an empty site in a triple well potential
- Multi-Channel Atomic Scattering and Confinement-Induced Resonances in Waveguides
- Atom-Pair Tunneling and Quantum Phase Transition in Strong Interaction Regime
- Excitations of Few-Boson Systems in 1-D Harmonic and Double Wells
- Transport and interaction blockade of cold bosonic atoms in a triple-well potential
- On-site correlations in optical lattices: band mixing to coupled quantum Hall puddles
- Correlation versus commensurability effects for finite bosonic systems in one-dimensional lattices
- Loss of superfluidity by fermions in the boson Hubbard model on an optical lattice
- Localization and delocalization of ultracold bosonic atoms in finite optical lattices
- Collapse and revival in inter-band oscillations of a two-band Bose-Hubbard model
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- The Multi-Layer Multi-Configuration Time-Dependent Hartree Method for Bosons: Theory, Implementation and Applications
- Few-body Bose gases in low dimensions -- a laboratory for quantum dynamics
- Control of tunneling in an atomtronic switching device
- Interacting bosons in a triple well: Preface of many-body quantum chaos
- Doping a lattice-trapped bosonic species with impurities: From ground state properties to correlated tunneling dynamics
- Polarons and their induced interactions in highly imbalanced triple mixtures
- Collective excitations of dipolar gases based on local tunneling in superlattices
- Quantum-classical correspondence of a system of interacting bosons in a triple-well potential
- Bosonic quantum dynamics following a linear interaction quench in finite optical lattices of unit filling
- Spatial adiabatic passage via interaction-induced band separation
- Interaction induced single impurity tunneling in a binary mixture of trapped ultracold bosons
- Tunneling dynamics of correlated bosons in a double well potential
- From integrability to chaos: the quantum-classical correspondence in a triple well bosonic model
- Ultracold dipolar bosons trapped in atomtronic circuits
- Interaction-controlled impurity transport in trapped mixtures of ultracold bosons
- Hydrodynamics of the atomic Bose-Einstein condensate beyond the mean-field approximation: a mini-review
- Ground state properties of a three-site Bose-Fermi ring with a small number of atoms
- Time periodicity and dynamical stability in two-boson systems