Quantum magnetism without lattices in strongly interacting one-dimensional spinor gases

F. Deuretzbacher; D. Becker; J. Bjerlin; S. M. Reimann; L. Santos

doi:10.1103/physreva.90.013611

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arXiv · 1310.3705

Quantum magnetism without lattices in strongly interacting one-dimensional spinor gases

F. Deuretzbacher·D. Becker·J. Bjerlin·S. M. Reimann·L. Santos

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Abstract

We show that strongly interacting multicomponent gases in one dimension realize an effective spin chain, offering an alternative simple scenario for the study of one-dimensional quantum magnetism in cold gases in the absence of an optical lattice. The spin-chain model allows for an intuitive understanding of recent experiments and for a simple calculation of relevant observables. We analyze the adiabatic preparation of antiferromagnetic and ferromagnetic ground states, and show that many-body spin states may be efficiently probed in tunneling experiments. The spin-chain model is valid for more than two components, opening the possibility of realizing SU(N) quantum magnetism in strongly interacting one-dimensional alkaline-earth-metal or ytterbium Fermi gases.

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F. Deuretzbacher, D. Becker, J. Bjerlin, S. M. Reimann, L. Santos. 2014-07-29. Quantum magnetism without lattices in strongly interacting one-dimensional spinor gases. https://doi.org/10.1103/physreva.90.013611

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