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Quantum Simulation

Competing valence bond and symmetry breaking Mott states of spin-3/2 fermions on a honeycomb lattice

arXiv

Authors: D. Jakab, E. Szirmai, M. Lewenstein, G. Szirmai

Year

2015

Paper ID

27066

Status

Preprint

Abstract Read

~2 min

Abstract Words

105

Citations

N/A

Abstract

We investigate magnetic properties of strongly interacting four component spin-3/2 ultracold fermionic atoms in the Mott insulator limit with one particle per site in an optical lattice with honeycomb symmetry. In this limit, atomic tunneling is virtual, and only the atomic spins can exchange. We find a competition between symmetry breaking and liquid like disordered phases. Particularly interesting are valence bond states with bond centered magnetizations, situated between the ferromagnetic and conventional valence bond phases. In the framework of a mean-field theory, we calculate the phase diagram and identify an experimentally relevant parameter region where a homogeneous SU(4) symmetric Affleck-Kennedy-Lieb-Tasaki-like valence bond state is present.

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We investigate magnetic properties of strongly interacting four component spin-3/2 ultracold fermionic atoms in the Mott insulator limit with one particle per site in an...

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References & Citation Signals

[1] DOI https://doi.org/arXiv:1509.07362 [2] arXiv https://arxiv.org/abs/1509.07362 [3] Publisher https://arxiv.org/abs/1509.07362

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