Temporal Correlators in the Continuous Time Formulation of Strong Coupling Lattice QCD
We present results for lattice QCD in the limit of infinite gauge coupling on
a discrete spatial but continuous Euclidean time lattice. A worm type Monte
Carlo algorithm is applied in order to sample two-point functions which gives
access to the measurement of mesonic temporal correlators. The continuous time
limit, based on sending $N_\tau\rightarrow \infty$ and the bare anistotropy to
infinity while fixing the temperature in a non-perturbative setup, has various
advantages: the algorithm is sign problem free, fast, and accumulates high
statistics for correlation functions. Even though the measurement of temporal
correlators requires the introduction of a binning in time direction, this
discretization can be chosen to be by orders finer compared to discrete
computations. For different spatial volumes, temporal correlators are measured
at zero spatial momentum for a variety of mesonic operators. They are fitted to
extract the pole masses and corresponding particles as a function of the
temperature. We conclude discussing the possibility to extract transport
coefficients from these correlators.