Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Anharmonic Lattice Dynamics from Vibrational Dynamical Mean-Field Theory   We present a vibrational dynamical mean-field theory (VDMFT) of the dynamics
of atoms in solids with anharmonic interactions. Like other flavors of DMFT,
VDMFT maps the dynamics of a periodic anharmonic lattice of atoms onto those of
a self-consistently defined impurity problem with local anharmonicity and
coupling to a bath of harmonic oscillators. VDMFT is exact in the harmonic and
molecular limits, nonperturbative, systematically improvable through its
clusters extensions, and usable with classical or quantum impurity solvers,
depending on the importance of nuclear quantum effects. When tested on models
of anharmonic optical and acoustic phonons, we find that classical VDMFT gives
good agreement with classical molecular dynamics, including the temperature
dependence of phonon frequencies and lifetimes. Using a quantum impurity
solver, signatures of nuclear quantum effects are observed at low temperatures.

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The categories of this paper are: cs
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The categories of this paper are: chao-dyn
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The categories of this paper are: astro-ph
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The categories of this paper are: q-bio
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The categories of this paper are: dg-ga
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The categories of this paper are: acc-phys
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The categories of this paper are: solv-int
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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: atom-ph
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The categories of this paper are: gr-qc
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The categories of this paper are: supr-con
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The categories of this paper are: plasm-ph
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The categories of this paper are: funct-an
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The categories of this paper are: eess
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The categories of this paper are: patt-sol