Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Probing Hidden Orders with Resonant Inelastic X-Ray Scattering   We propose a general scheme for the derivation of the signals resonant
inelastic (and elastic) x-ray scattering (RIXS) gives access to. In particular,
we find that RIXS should allow to directly detect many hidden orders, such as
spin nematic, bond nematic, vector and scalar spin chiralities. To do so, we
choose to take the point of view of effective operators, leaving microscopic
details unspecified, but still keeping experimentally-controllable parameters
explicit, like the incoming and outgoing polarizations of the x-rays. We ask
not what microscopic processes can lead to a specific outcome, but, rather,
what couplings are in principle possible. This approach allows to
systematically enumerate all possible origins of contributions to a general
RIXS signal. Although we mainly focus on magnetic insulators, for which we give
a number of examples, our analysis carries over to systems with charge and
other degrees of freedom, which we briefly address. We hope this work will help
guide theorists and experimentalists alike in the design and interpretation of
RIXS experiments.

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The categories of this paper are: econ
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The categories of this paper are: plasm-ph
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The categories of this paper are: adap-org
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The categories of this paper are: supr-con
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The categories of this paper are: quant-ph
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The categories of this paper are: math-ph
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The categories of this paper are: nlin
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The categories of this paper are: stat
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The categories of this paper are: mtrl-th
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The categories of this paper are: acc-phys
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The categories of this paper are: hep-th
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The categories of this paper are: q-fin
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The categories of this paper are: ao-sci
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The categories of this paper are: alg-geom
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The categories of this paper are: chem-ph
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The categories of this paper are: chao-dyn