Zobrazeno 1 - 10
of 56
pro vyhledávání: '"Hip, Ivan"'
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
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
Publikováno v:
In Bioresource Technology Reports February 2022 17
Publikováno v:
PoS LATTICE 2013, 486 (2014)
Fermionic theories with a vanishing chiral condensate (in the chiral limit) have recently attracted considerable interest; in particular variants of multi-flavour QCD are candidates for this behaviour. Here we consider the 2-flavour Schwinger model a
Externí odkaz:
http://arxiv.org/abs/1310.3427
Publikováno v:
International Journal of Modern Physics C 25 (10), 1450051 (2014)
The Schwinger model with $N_f \geq 2$ flavors is a simple example for a fermionic model with zero chiral condensate Sigma (in the chiral limit). We consider numerical data for two light flavors, based on simulations with dynamical chiral lattice ferm
Externí odkaz:
http://arxiv.org/abs/1307.0231
Autor:
Bietenholz, Wolfgang, Hip, Ivan
In gauge theories the field configurations often occur in distinct topological sectors. In a lattice regularised system with chiral fermions, these sectors can be defined by referring to the Atiyah-Singer Index Theorem. However, if such a model is si
Externí odkaz:
http://arxiv.org/abs/1201.6335
Publikováno v:
Eur. Phys. J. C 72 (2012) 1938
We present numerical results for the 2-flavour Schwinger model with dynamical chiral lattice fermions. We insert an approximately chiral hypercube Dirac operator into the overlap formula to construct the overlap hypercube operator. This is an exact s
Externí odkaz:
http://arxiv.org/abs/1109.2649
Autor:
Bietenholz, Wolfgang, Hip, Ivan
Publikováno v:
PoS LAT2009:086,2009
Random Matrix Theory (RMT) has elaborated successful predictions for Dirac spectra in field theoretical models. However, a generic assumption by RMT has been a non-vanishing chiral condensate $\Sigma$ in the chiral limit. Here we consider the 2-flavo
Externí odkaz:
http://arxiv.org/abs/0909.2241