Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Fano and Dicke effects and spin polarization in a double Rashba-ring
  system side coupled to a quantum wire   The electronic transport in a system of two quantum rings side-coupled to a
quantum wire is studied via a single-band tunneling tight-binding Hamiltonian.
We derived analytical expressions for the conductance and spin polarization
when the rings are threaded by magnetic fluxes with Rashba spin-orbit
interaction. We show that by using the Fano and Dicke effects this system can
be used as an efficient spin-filter even for small spin orbit interaction and
small values of magnetic flux. We compare the spin-dependent polarization of
this design and the polarization obtained with one ring side coupled to a
quantum ring. As a main result, we find better spin polarization capabilities
as compared to the one ring design

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The categories of this paper are: ao-sci
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The categories of this paper are: math-ph
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The categories of this paper are: econ
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The categories of this paper are: astro-ph
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The categories of this paper are: quant-ph
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The categories of this paper are: hep-ex
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The categories of this paper are: hep-lat
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The categories of this paper are: eess
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The categories of this paper are: bayes-an
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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: patt-sol
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The categories of this paper are: q-bio
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The categories of this paper are: q-alg
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The categories of this paper are: dg-ga
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The categories of this paper are: cs