# Theory of bosons in two-leg ladders with large magnetic fields

@article{Wei2014TheoryOB, title={Theory of bosons in two-leg ladders with large magnetic fields}, author={Ran Wei and Erich Mueller}, journal={Physical Review A}, year={2014}, volume={89}, pages={063617} }

We calculate the ground state of a Bose gas trapped on a two-leg ladder where Raman-induced hopping mimics the effect of a large magnetic field. In the mean-field limit, where there are large numbers of particles per site, this maps onto a uniformly frustrated two-leg ladder classical spin model. The net particle current always vanishes in the ground state, but generically there is a finite "chiral current", corresponding to equal and opposite flow on the two legs. We vary the strength of the… Expand

#### 32 Citations

Bosons with long range interactions on two-leg ladders in artificial magnetic fields

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Motivated by experiments exploring the physics of neutral atoms in artificial magnetic fields, we study the ground state of bosons interacting with long range dipolar interactions on a two-leg… Expand

Quantum phase transitions of a two-leg bosonic ladder in an artificial gauge field

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We consider a two leg bosonic ladder in a $U(1)$ gauge field with both interleg hopping and interleg repulsion. As a function of the flux, the interleg interaction converts the… Expand

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We perform a density-matrix renormalization-group study of strongly interacting bosons on a three-leg ladder in the presence of a homogeneous flux. Focusing on one-third filling, we explore the phase… Expand

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

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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… Expand

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

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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… Expand

Dynamics and phase transitions in biased ladder systems with magnetic flux

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Abstract The ground states and the dynamics of a biased two-leg flux ladder in the presence of a gravitational field are discussed. In the absence of the gravitational field, the ground states and… Expand

Spin-gap spectroscopy in a bosonic flux ladder

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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.… Expand

Two-leg-ladder Bose-Hubbard models with staggered fluxes

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- Physical Review A
- 2018

We investigate the ground state properties of ultracold atoms trapped in a two-leg ladder potential in the presence of an artificial magnetic field in a staggered configuration. We focus on the… Expand

Quench dynamics of two-leg ladders with magnetic flux

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Abstract The realization and detection of two-leg ladders with the interplay of the artificial gauge field provide an ideal platform for investigations of the quantum phase transition and quantum… Expand

Excitation spectrum and supersolidity of a two-leg bosonic ring ladder

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We consider a system of weakly interacting bosons confined on a planar double lattice ring subjected to two artificial gauge fields. This system is known to display three phases, the Meissner phase… Expand