Mobile impurities interacting with a few one-dimensional lattice bosons
arXiv:2207.09309 · doi:10.1088/1361-6455/acb51b
Abstract
We report a comprehensive study of the ground-state properties of one and two bosonic impurities immersed in small one-dimensional optical lattices loaded with a few interacting bosons. We model the system with a two-component Bose-Hubbard model and solve the problem numerically by means of the exact diagonalization (ED) method. We report binding energies of one and two impurities across the superfluid (SF) to Mott-insulator (MI) transition and confirm the formation of two-body bound states of impurities induced by repulsive interactions. In particular, we found that an insulator bath induces tightly bound di-impurity dimers, whereas a superfluid bath induces shallower bound states.
23 pages, 13 figures. Accepted version
References in corpus (26)
- Many-Body Physics with Ultracold Gases
- Ultracold atomic gases in optical lattices: mimicking condensed matter physics and beyond
- Quantum liquid droplets in a mixture of Bose-Einstein condensates
- Experimental demonstration of painting arbitrary and dynamic potentials for Bose-Einstein condensates
- Bose-Fermi Mixtures in a Three-dimensional Optical Lattice
- Degenerate Bose-Bose mixture in a three-dimensional optical lattice
- Exact diagonalization: the Bose-Hubbard model as an example
- Dark state cooling of atoms by superfluid immersion
- Quantum Phase Diagram of Bosons in Optical Lattices
- A Mott Insulator of Ultracold Alkaline-Earth-Like Atoms
- Quantum Monte-Carlo study of the Bose polaron problem in a one-dimensional gas with contact interactions
- Transport of strong-coupling polarons in optical lattices
- Polaron Interactions and Bipolarons in One-Dimensional Bose Gases in the Strong Coupling Regime
- Bipolarons and multi-polarons consisting of impurity atoms in a Bose-Einstein condensate
- Unconventional superconducting pairing by conventional phonons
- Mediated interaction between polarons in a one-dimensional Bose gas
- Induced pairing of fermionic impurities in a one-dimensional strongly correlated Bose gas
- Renormalization group study of Bose polarons
- Lattice polarons across the superfluid to Mott insulator transition
- Impurities in a one-dimensional Bose gas: the flow equation approach
- Crossover polarons in a strongly interacting Fermi superfluid
- Polarons and their induced interactions in highly imbalanced triple mixtures
- The effect of boson-boson interaction on the Bipolaron formation
- Counterflow dynamics of two correlated impurities immersed in a bosonic gas
- Entangling lattice-trapped bosons with a free impurity: impact on stationary and dynamical properties
- Polarons in Binary Bose-Einstein Condensates
Cited by in corpus (5)
- Crossover from attractive to repulsive induced interactions and bound states of two distinguishable Bose polarons
- Bound impurities in a one-dimensional Bose lattice gas: low-energy properties and quench-induced dynamics
- Emergent Mott-insulators at non-integer fillings and devil's staircase induced by attractive interaction in many-body polarons
- Counterflow of lattice polarons in harmonically confined optical lattices
- Few particles with an impurity in a one-dimensional harmonic trap