TY  - CONF
A1  - Unger, Wolfgang
A1  - Forcrand, Philippe de
T1  - New algorithms and new results for strong coupling LQCD
T2  - Proceedings of Science
N2  - We present and compare new types of algorithms for lattice QCD with staggered fermions in the limit of infinite gauge coupling. These algorithms are formulated on a discrete spatial lattice but with continuous Euclidean time. They make use of the exact Hamiltonian, with the inverse temperature beta as the only input parameter. This formulation turns out to be analogous to that of a quantum spin system. The sign problem is completely absent, at zero and non-zero baryon density. We compare the performance of a continuous-time worm algorithm and of a Stochastic Series Expansion algorithm (SSE), which operates on equivalence classes of time-ordered interactions. Finally, we apply the SSE algorithm to a first exploratory study of two-flavor strong coupling lattice QCD, which is manageable in the Hamiltonian formulation because the sign problem can be controlled.
Y1  - 2012
UR  - http://publikationen.ub.uni-frankfurt.de/frontdoor/index/index/docId/27445
UR  - https://nbn-resolving.org/urn:nbn:de:hebis:30:3-274453
SN  - 1824-8039
N1  - The 30 International Symposium on Lattice Field Theory - Lattice 2012, June 24-29, 2012 Cairns, Australia
VL  - 2012
SP  - 1
PB  - Scuola Internazionale Superiore di Studi Avanzati
CY  - Trieste
ER  -