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Effects of the Chemical Potential in two-dimensional Quantum Field Theories

โœ Scribed by Soraya G. Maciel; Silvana Perez; C. Rocha

Publisher
Elsevier Science
Year
2010
Tongue
English
Weight
170 KB
Volume
199
Category
Article
ISSN
0920-5632

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โœฆ Synopsis

In this talk we study the effects of a nonzero chemical potential in (1 + 1) dimensions quantum field models at finite temperature. We start by considering massless fermions in an abelian gauge field background and calculate the n-point amplitudes using the real time formalism. Our calculation shows that the chiral anomaly is unaffected by the presence of a chemical potential at finite temperature. We also find that retarded amplitudes vanish. We then consider the imaginary time formalism and find that the two-and three-point functions vanish, this result being consistent with the real time calculations.

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