Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Auxiliary field Monte-Carlo study of the QCD phase diagram at strong
  coupling   We investigate the QCD phase diagram in the strong coupling limit by using a
newly developed auxiliary field Monte-Carlo (AFMC) method. Starting from an
effective action in the leading order of the 1/g^2 and 1/d expansion with one
species of unrooted staggered fermion, we solve the many-body problem exactly
by introducing the auxiliary fields and integrating out the temporal links and
quark fields. We have a sign problem in AFMC, which is different from the
original one in finite density lattice QCD. For low momentum auxiliary field
modes, a complex phase cancellation mechanism exists, and the sign problem is
not serious on a small lattice. Compared with the mean field results, the
transition temperature is found to be reduced by around 10 % and the hadron
phase is found to be extended in the larger chemical potential direction by
around 20 %, as observed in the monomer-dimer-polymer (MDP) simulations.

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The categories of this paper are: patt-sol
1
The categories of this paper are: cs
3
The categories of this paper are: physics
9
The categories of this paper are: nlin
19
The categories of this paper are: eess
24
The categories of this paper are: dg-ga
8
The categories of this paper are: hep-ex
15
The categories of this paper are: nucl-ex
2
The categories of this paper are: math
22
The categories of this paper are: chao-dyn
29
The categories of this paper are: funct-an
31
The categories of this paper are: ao-sci
30
The categories of this paper are: q-alg
4
The categories of this paper are: cond-mat
35
The categories of this paper are: mtrl-th
33
The categories of this paper are: plasm-ph