Münster 2011 – wissenschaftliches Programm

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HK: Fachverband Physik der Hadronen und Kerne

HK 2: Schwerionenkollisionen und QCD Phasen I

HK 2.2: Gruppenbericht

Montag, 21. März 2011, 14:30–15:00, HS AP

Continuous Time Monte Carlo for QCD in the Strong Coupling Limit — •Wolfgang Unger and Philippe de Forcrand — ETH Zürich, Switzerland

We present results for QCD in the strong coupling limit, obtained from a worm-type algorithm on a discrete spatial lattice but with continuous Euclidean time. This is obtained by sending the anisotropy parameter γ²=a/a_t to infinity. The gain is that no continuum extrapolation for N_τ→ ∞ has to be carried out. We contrast these computations with those obtained on discrete lattices for large N_τ. As a first application we discuss the determination of the critical temperature for U(3) gauge group (purely mesonic system), and illustrate how the method can also be extended to SU(3) with finite baryon chemical potential.