Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Dynamical response and dimensional crossover for spatially anisotropic
  antiferromagnets   Theoretically challenging, the understanding of the dynamical response in
quantum antiferromagnets is of great interest, in particular for both inelastic
neutron scattering (INS) and nuclear magnetic resonance (NMR) experiments. In
such a context, we theoretically address this question for
quasi-one-dimensional quantum magnets, e.g. weakly coupled spin chains for
which many compounds are available in Nature. In this class of systems, the
dimensional crossover between a three-dimensional ordered regime at low
temperature towards one-dimensional physics at higher temperature is a
non-trivial issue, notably difficult concerning dynamical properties. Here we
present a comprehensive theoretical study based on both analytical calculations
(bosonization + random phase and self-consistent harmonic approximations) and
numerical simulations (quantum Monte Carlo + stochastic analytic continuation)
which allows us to describe the full temperature crossover for the NMR
relaxation rate $1/T_1$, from one-dimensional Tomonaga-Luttinger liquid physics
to the three-dimensional ordered regime, as a function of inter-chain
couplings. The dynamical structure factor, directly probing the INS intensity,
is also computed in the different regimes.

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The categories of this paper are: alg-geom
14
The categories of this paper are: math-ph
13
The categories of this paper are: quant-ph
19
The categories of this paper are: eess
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The categories of this paper are: adap-org
37
The categories of this paper are: supr-con
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The categories of this paper are: funct-an
20
The categories of this paper are: acc-phys
8
The categories of this paper are: hep-ex
23
The categories of this paper are: solv-int
32
The categories of this paper are: atom-ph
12
The categories of this paper are: nucl-th
31
The categories of this paper are: ao-sci
22
The categories of this paper are: chao-dyn
0
The categories of this paper are: hep-ph
9
The categories of this paper are: nlin