Title:
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Nonrelativistic noncommutative field theory and UV-IR mixing
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Author:
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Gomis Torné, Joaquim; Landsteiner, Karl; López, Esperanza
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Other authors:
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Universitat de Barcelona |
Abstract:
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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. |
Subject(s):
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-Teoria de camps (Física) -Partícules (Física nuclear) -Field theory (Physics) -Particles (Nuclear physics) |
Rights:
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(c) The American Physical Society, 2000
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Document type:
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Article Article - Published version |
Published by:
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The American Physical Society
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