Finite-size, chemical-potential and magnetic effects on the phase transition in a four-fermion interacting model

• Main Authors: E. B. S. Corrêa, C. A. Linhares, A. P. C. Malbouisson, J. M. C. Malbouisson, A. E. Santana
• Format: Article
• Language: English
• Published: SpringerOpen 2017-04-01
• Series: European Physical Journal C: Particles and Fields
• Subjects: Critical Temperature; External Magnetic Field; Applied Magnetic Field; Quartic Coupling; Hurwitz Zeta Function
• Online Access: http://link.springer.com/article/10.1140/epjc/s10052-017-4815-8
• ISSN: 1434-6044; 1434-6052

Abstract We study effects coming from finite size, chemical potential and from a magnetic background on a massive version of a four-fermion interacting model. This is performed in four dimensions as an application of recent developments for dealing with field theories defined on toroidal spaces. We study effects of the magnetic field and chemical potential on the size-dependent phase structure of the model, in particular, how the applied magnetic field affects the size-dependent critical temperature. A connection with some aspects of the hadronic phase transition is established.