Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Effect of magnetic field on competition between superconductivity and
  charge order below the pseudogap state   We theoretically investigate the T-B phase diagram of cuprates building on
the SU(2) pseudogap order recently obtained from the spin-fermion model. At low
temperatures, our analysis reveals an almost temperature-independent critical
magnetic field B_{QDW} at which d-wave superconductivity switches to the
quadrupole density wave (QDW) phase. For temperatures beyond a certain value of
the order of the zero-field superconducting transition temperature T_c, the
critical field B_{QDW}(T) sharply grows. We compare our results derived within
the effective SU(2) non-linear sigma-model with the phase diagram recently
obtained by sound velocity measurements by LeBoeuf et al. [Nat. Phys. 9, 79
(2013)].

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The categories of this paper are: cs
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The categories of this paper are: physics
27
The categories of this paper are: comp-gas
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The categories of this paper are: nucl-ex
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The categories of this paper are: acc-phys
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The categories of this paper are: ao-sci
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The categories of this paper are: q-bio
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The categories of this paper are: eess
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The categories of this paper are: dg-ga
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The categories of this paper are: solv-int
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The categories of this paper are: gr-qc
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The categories of this paper are: econ
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The categories of this paper are: math-ph
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The categories of this paper are: astro-ph
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The categories of this paper are: hep-lat
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The categories of this paper are: hep-ex