The recently developed hybrid Monte Carlo (HMC) method [ 1 ] has become an important tool for numerical investigations of lattice QCD. While in principle equally applicable to pure gauge theories,â€¦ (More)

We calculate the bispectrum of the gravitational field fluctuations generated during warm inflation, where dissipation of the vacuum potential during inflation is the mechanism for structureâ€¦ (More)

Abstract We compare the efficiency of four different algorithms to compute the overlap Dirac operator, both for the speed, i.e., time required to reach a desired numerical accuracy, and for theâ€¦ (More)

Matter described by quantum chromodynamics (QCD), the theory of strong interactions, may undergo phase transitions when its temperature and the chemical potentials are varied. QCD at finiteâ€¦ (More)

We studied screening masses in the equilibrium thermodynamics of SU(2) and SU(3) pure gauge theories on the lattice. At a temperature of 2Tc we found strong evidence for dimensional reduction in theâ€¦ (More)

A systematic study of the inclusive single heavy quark and heavy-quark pair production cross sections in pp collisions is presented for RHIC and LHC energies. We compare with existing data whenâ€¦ (More)

We report first results on the strange quark number susceptibility, Ï‡s, over a large range of temperatures, mainly in the plasma phase of QCD. Ï‡s jumps across the phase transition temperature, Tc,â€¦ (More)

We perform a systematic scaling study of screening masses in pure gauge SU(2) theory at temperatures above the phase transition temperature. The major finite volume effect is seen to be spatialâ€¦ (More)

The Galactic high-mass X-ray binary and jet source (microquasar) LSI +61 303 has recently been detected at TeV Î³-ray energies by the MAGIC telescope. We have applied a time-dependent leptonic jetâ€¦ (More)

We study physics at temperatures just above the QCD phase transition (Tc) using chiral (overlap) Fermions in the quenched approximation of lattice QCD. Exact zero modes of the overlap Dirac operatorâ€¦ (More)