Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Persistent Currents in Toroidal Dipolar Supersolids   We investigate the rotational properties of a dipolar Bose-Einstein
condensate trapped in a toroidal geometry. Studying the ground states in the
rotating frame and at fixed angular momenta, we observe that the condensate
acts in distinctly different ways depending on whether it is in the superfluid
or in the supersolid phase. We find that intriguingly, the toroidal dipolar
condensate can support a supersolid persistent current which occurs at a local
minimum in the ground state energy as a function of angular momentum, where the
state has a vortex solution in the superfluid component of the condensate. The
decay of this state is prevented by a barrier that in part consists of states
where a fraction of the condensate mimics solid-body rotation in a direction
opposite to that of the vortex. Furthermore, the rotating toroidal supersolid
shows hysteretic behavior that is qualitatively different depending on the
superfluid fraction of the condensate.

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The categories of this paper are: bayes-an
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The categories of this paper are: math-ph
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The categories of this paper are: hep-lat
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The categories of this paper are: cmp-lg
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The categories of this paper are: comp-gas
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The categories of this paper are: atom-ph
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The categories of this paper are: alg-geom
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The categories of this paper are: funct-an
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The categories of this paper are: eess
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The categories of this paper are: stat
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The categories of this paper are: nlin
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The categories of this paper are: quant-ph
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The categories of this paper are: adap-org
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The categories of this paper are: acc-phys
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The categories of this paper are: gr-qc
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The categories of this paper are: q-fin