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Quantum Simulation

Spiral spin textures of bosonic Mott insulator with SU(3) spin-orbit coupling

arXiv
Authors: Tobias Graß, Ravindra W. Chhajlany, Christine A. Muschik, Maciej Lewenstein

Year

2014

Paper ID

48244

Status

Preprint

Abstract Read

~2 min

Abstract Words

106

Citations

N/A

Abstract

We study the Mott phase of three-component bosons, with one particle per site, in an optical lattice by mapping it onto an SU(3) spin model. In the simplest case of full SU(3) symmetry, one obtains a ferromagnetic Heisenberg model. Introducing an SU(3) analog of spin-orbit coupling, additional spin-spin interactions are generated. We first consider the scenario of spin-dependent hopping phases, leading to Dzyaloshinskii-Moriya-type interactions. They result in the formation of spiral spin textures, which in one dimension can be understood by a local unitary transformation. Applying classical Monte Carlo simulations, we extend our study to two-dimensional systems, and systems with "true" spin-orbit coupling, involving spin-changing hoppings.

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  • We study the Mott phase of three-component bosons, with one particle per site, in an optical lattice by mapping it onto an SU(3) spin model.

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References & Citation Signals

[1] DOI https://doi.org/arXiv:1408.0769 [2] arXiv https://arxiv.org/abs/1408.0769 [3] Publisher https://arxiv.org/abs/1408.0769

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