Please use this identifier to cite or link to this item: http://hdl.handle.net/2445/12436
Title: Nonrelativistic noncommutative field theory and UV-IR mixing
Author: Gomis Torné, Joaquim
Landsteiner, Karl
López, Esperanza
Keywords: Teoria de camps (Física)
Partícules (Física nuclear)
Field theory (Physics)
Particles (Nuclear physics)
Issue Date: 2000
Publisher: The American Physical Society
Abstract: We study a non-commutative non-relativistic scalar field theory in 211 dimensions. The theory shows the UV-IR mixing typical of QFT on non-commutative spaces. The one-loop correction to the two-point function turns out to be given by a d function in momentum space. The one-loop correction to the four-point function is of logarithmic type. We also evaluate the thermodynamic potential at two-loop order. To avoid an IR singularity we have to introduce a chemical potential. The suppression of the non-planar contribution with respect to the planar one turns out to depend crucially on the value of the chemical potential.
Note: Reproducció digital del document publicat en format paper, proporcionada per PROLA i http://dx.doi.org/10.1103/PhysRevD.62.105006
It is part of: Physical Review D, 2000, vol. 62, núm. 10, p. 105006-1-105006-6
Related resource: http://dx.doi.org/10.1103/PhysRevD.62.105006
URI: http://hdl.handle.net/2445/12436
ISSN: 0556-2821
Appears in Collections:Articles publicats en revistes (Física Quàntica i Astrofísica)

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