Analytical approach to a bosonic ladder subject to a magnetic field

@article{Uchino2016AnalyticalAT,
  title={Analytical approach to a bosonic ladder subject to a magnetic field},
  author={Shun Uchino},
  journal={Physical Review A},
  year={2016},
  volume={93},
  pages={053629}
}
  • S. Uchino
  • Published 16 March 2016
  • Physics
  • Physical Review A
We examine a bosonic two-leg ladder model subject to a magnetic flux and especially focus on a regime where the lower-energy band has two minima. By using a low-energy field theory approach, we study several issues discussed in the system: the existence of local patterns in density and current, chiral-current reversal, and the effect of a nearest-neighbor interaction along the rung direction. In our formalism, the local patterns are interpreted as a result of breaking of discrete symmetry. The… 

Spin-gap spectroscopy in a bosonic flux ladder

Ultracold bosonic atoms trapped in a two-leg ladder pierced by a magnetic field provide a minimal and quasi-one-dimensional instance to study the interplay between orbital magnetism and interactions.

Bose-Hubbard triangular ladder in an artificial gauge field

We consider interacting bosonic particles on a two-leg triangular ladder in the presence of an artificial gauge field. We employ density matrix renormalization group numerical simulations and

Chiral current reversal induced by a quadratic field in the three-leg magnetic lattice

We study the chiral current of non-interacting bosons in a three-leg lattice subjected to a uniform magnetic flux. The model is equivalent to a spin-1 bosonic lattice with three internal degrees of

Quantum phases of strongly interacting bosons on a two-leg Haldane ladder

We study the ground-state physics of a single-component Haldane model on a hexagonal two-leg ladder geometry with a particular focus on strongly interacting bosonic particles. We concentrate our

Finite-temperature properties of interacting bosons on a two-leg flux ladder

Quasi-one-dimensional lattice systems such as flux ladders with artificial gauge fields host rich quantum-phase diagrams that have attracted great interest. However, so far, most of the work on these

Interacting bosonic flux ladders with a synthetic dimension: Ground-state phases and quantum quench dynamics

Flux ladders constitute the minimal setup enabling a systematic understanding of the rich physics of interacting particles subjected simultaneously to strong magnetic fields and a lattice potential.

Cavity-induced spin-orbit coupling in an interacting bosonic wire

We consider theoretically ultra-cold interacting bosonic atoms confined to a wire geometry and coupled to the field of an optical cavity. A spin-orbit coupling is induced via Raman transitions

Tunneling vortex dynamics in linearly coupled Bose-Hubbard rings

The quantum dynamics of population-balanced fractional vortices and population-imbalanced vortices in an effective two-state bosonic system, made of two coupled discrete circuits with few sites, is

Fractional topological insulator precursors in spin-orbit fermion ladders

We study precursor states of fractional topological insulators (FTIs) in interacting fermionic ladders with spin-orbit coupling. Within a microscopically motivated bosonization approach, we