TY  - CONF
A1  - Fromm, Michael
A1  - Langelage, Jens
A1  - Lottini, Stefano
A1  - Philipsen, Owe
T1  - Effective theory for QCD at finite temperature and density from strong coupling expansion
T2  - Proceedings of Science
N2  - QCD at finite temperature and denisty remains intractable by Monte Carlo simulations for quark
chemical potentials m >∼T. It has been a long standing problem to derive effective theories from
QCD which describe the phase structure of the former with controlled errors. We propose a
solution to this problem by a combination of analytical and numerical methods. Starting from
lattice QCD with in Wilson’s formulation, we derive an effective action in terms of Polyakov
loops by means of combined strong coupling and hopping expansions. The theory correctly
reflects the centre-symmetry in the pure gauge limit and its breaking through quarks. It is valid
for heavy quarks and lattices up to Nt ∼ 6. Its sign problem can be solved and we are able to
calculate the deconfinement transition of QCD with heavy quarks for all chemical potentials.
Y1  - 2012
UR  - http://publikationen.ub.uni-frankfurt.de/frontdoor/index/index/docId/27315
UR  - https://nbn-resolving.org/urn:nbn:de:hebis:30:3-273153
SN  - 1824-8039
N1  - International Workshop on QCD Green’s Functions, Confinement and Phenomenology, September 05-09, 2011 Trento Italy
VL  - 2011
IS  - (QCD-TNT-II)035
SP  - 1
EP  - 12
PB  - Scuola Internazionale Superiore di Studi Avanzati
CY  - Trieste
ER  -