Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Hamiltonian-based impurity solver for nonequilibrium dynamical
  mean-field theory   We derive an exact mapping from the action of nonequilibrium dynamical
mean-field theory (DMFT) to a single-impurity Anderson model (SIAM) with
time-dependent parameters, which can be solved numerically by exact
diagonalization. The representability of the nonequilibrium DMFT action by a
SIAM is established as a rather general property of nonequilibrium Green
functions. We also obtain the nonequilibrium DMFT equations using the cavity
method alone. We show how to numerically obtain the SIAM parameters using
Cholesky or eigenvector matrix decompositions. As an application, we use a
Krylov-based time propagation method to investigate the Hubbard model in which
the hopping is switched on, starting from the atomic limit. Possible future
developments are discussed.

12
The categories of this paper are: nucl-th
16
The categories of this paper are: stat
10
The categories of this paper are: q-bio
1
The categories of this paper are: cs
27
The categories of this paper are: comp-gas
26
The categories of this paper are: bayes-an
19
The categories of this paper are: eess
15
The categories of this paper are: nucl-ex
9
The categories of this paper are: nlin
13
The categories of this paper are: quant-ph
32
The categories of this paper are: atom-ph
37
The categories of this paper are: supr-con
36
The categories of this paper are: cmp-lg
6
The categories of this paper are: astro-ph
34
The categories of this paper are: chem-ph
31
The categories of this paper are: ao-sci