Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Giant intrinsic rectification and nonlinear Hall effect under
  time-reversal symmetry in a trigonal superconductor   Nonreciprocal or nonlinear responses in symmetry-broken systems are powerful
probes of emergent properties in quantum materials, including superconductors,
magnets, and topological materials. Recently, vortex matter has been recognized
as a key ingredient of giant nonlinear responses in superconductors with broken
inversion symmetry. However, nonlinear effects have been probed as excess
voltage only under broken time-reversal symmetry. In this study, we report
intrinsic rectification and nonlinear anomalous Hall effect under time-reversal
symmetry in the noncentrosymmetric trigonal superconductor PbTaSe2. The
magnitude of anomalous nonlinear transport is two orders of magnitude larger
than those in the normal state, and the directional dependence of nonlinear
signals are fully consistent with crystal symmetry. The enhanced nonlinearity
is semiquantitatively explained by the asymmetric Hall effect of
vortex-antivortex string pairs in noncentrosymmetric systems. This study
enriches the literature on nonlinear phenomena by revealing a novel aspect of
quantum transport in noncentrosymmetric superconductors.

6
The categories of this paper are: astro-ph
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The categories of this paper are: alg-geom
11
The categories of this paper are: hep-lat
13
The categories of this paper are: quant-ph
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The categories of this paper are: eess
17
The categories of this paper are: q-fin
34
The categories of this paper are: chem-ph
21
The categories of this paper are: adap-org
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The categories of this paper are: nucl-ex
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The categories of this paper are: patt-sol
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The categories of this paper are: chao-dyn
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The categories of this paper are: nucl-th
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The categories of this paper are: plasm-ph
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The categories of this paper are: econ
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The categories of this paper are: dg-ga
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The categories of this paper are: solv-int