Zobrazeno 1 - 5
of 5
pro vyhledávání: '"Castellanos, Jaime Fabián Nieto"'
The pion decay constant $F_{\pi}$ plays an important role in QCD and in Chiral Perturbation Theory. It is hardly known, however, that a corresponding constant exists in the Schwinger model with $N_{\rm f} \geq 2$ degenerate fermion flavors. In this c
Externí odkaz:
http://arxiv.org/abs/2311.14232
Autor:
López-Contreras, Edgar, Castellanos, Jaime Fabián Nieto, Polanco-Euán, Elías Natanael, Bietenholz, Wolfgang
We present a study of the 3d O(2) non-linear $\sigma$-model on the lattice, which exhibits topological defects in the form of vortices. They tend to organize into vortex lines that bear close analogies with global cosmic strings. Therefore, this mode
Externí odkaz:
http://arxiv.org/abs/2311.13074
We study the Schwinger model with $N_{\rm f} \geq 2$ degenerate fermion flavors, by means of lattice simulations. We use dynamical Wilson fermions for $N_{\rm f} = 2$, and re-weighted quenched configurations for overlap-hypercube fermions with $N_{\r
Externí odkaz:
http://arxiv.org/abs/2305.00128
We consider the Schwinger model with two degenerate, light fermion flavors by means of lattice simulations. At finite temperature, we probe the viability of a bosonization method by Hosotani et al. Next we explore an analogue to the pion decay consta
Externí odkaz:
http://arxiv.org/abs/2201.08008
The Schwinger model is often used as a testbed for conceptual and numerical approaches in lattice field theory. Still, some of its rich physical properties in anisotropic volumes have not yet been explored. For the multi-flavor finite temperature Sch
Externí odkaz:
http://arxiv.org/abs/2109.13468