New insight in the 2-flavor Schwinger model based on lattice simulations
DOI:
https://doi.org/10.31349/SuplRevMexFis.3.020707Keywords:
Schwinger model, lattice gauge theory, finite temperature, chiral condensate, ±-regime, pion decay constantAbstract
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 {\it et al.} Next we explore an analogue to the pion decay constant, which agrees for independent formulations based on the Gell-Mann--Oakes--Renner relation, the 2-dimensional Witten--Veneziano formula and the $\delta$-regime. Finally we confront several conjectures about the chiral condensate with lattice results.
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Copyright (c) 2022 Jaime Fabián Nieto Castellanos, Wolfgang Bietenholz, Ivan Hip (Author)
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