6 citations · 11 across the 3 of their papers we have counts for
5 papers
Cutoff effects in maximally twisted LQCD
Giancarlo Rossi, Roberto Frezzotti, Guido Martinelli +1
The Symanzik analysis of correlators in lattice QCD with maximally twisted Wilson fermions reveals that there exist cutoff artifacts which tend to become large as the quark mass ge…
A (P)HMC algorithm for N_f = 2 + 1 + 1 flavours of twisted mass fermions
T. Chiarappa, R. Frezzotti, C. Urbach
We present a detailed design of a (P)HMC simulation algorithm for N_f = 2 + 1 + 1 maximally twisted Wilson quark flavours. The algorithm retains even/odd and mass-shift preconditio…
Chirally improving Wilson fermions III. The Schrödinger functional
Roberto Frezzotti, Giancarlo Rossi
We show that it is possible to construct a lattice Schroedinger functional for standard Wilson fermions, where the expectation values of -even operators are O() impr…
A lattice approach to QCD in the chiral regime
Michele Della Morte, Roberto Frezzotti, Jochen Heitger
Non-perturbative lattice studies of QCD in the chiral thermodynamic regime, where chiral symmetry is spontaneously broken, require to deal with almost quark zero modes in a theoret…
Some remarks on O(a) improved twisted mass QCD
Roberto Frezzotti, Stefan Sint
Twisted mass QCD (tmQCD) has been introduced as a solution to the problem of unphysical fermion zero modes in lattice QCD with quarks of the Wilson type. We here argue that O(a) im…