Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Continuous-time Quantum Monte Carlo using Worm Sampling   We present a worm sampling method for calculating one- and two-particle
Green's functions using continuous-time quantum Monte Carlo simulations in the
hybridization expansion (CT-HYB). Instead of measuring Green's functions by
removing hybridization lines from partition function configurations, as in
conventional CT-HYB, the worm algorithm directly samples the Green's function.
We show that worm sampling is necessary to obtain general two-particle Green's
functions which are not of density-density type and that it improves the
sampling efficiency when approaching the atomic limit. Such two-particle
Green's functions are needed to compute off-diagonal elements of
susceptibilities and occur in diagrammatic extensions of the dynamical mean
field theory and efficient estimators for the single-particle self-energy.

18
The categories of this paper are: econ
11
The categories of this paper are: hep-lat
24
The categories of this paper are: dg-ga
9
The categories of this paper are: nlin
17
The categories of this paper are: q-fin
32
The categories of this paper are: atom-ph
3
The categories of this paper are: physics
8
The categories of this paper are: hep-ex
26
The categories of this paper are: bayes-an
27
The categories of this paper are: comp-gas
29
The categories of this paper are: funct-an
7
The categories of this paper are: hep-th
16
The categories of this paper are: stat
12
The categories of this paper are: nucl-th
36
The categories of this paper are: cmp-lg
35
The categories of this paper are: mtrl-th