On the continuity of the commutative limit of the 4d N=4 non-commutative super Yang-Mills theory

• Hanada, Masanori

• Shimada, Hidehiko

Abstract

We study the commutative limit of the non-commutative maximally supersymmetric Yang-Mills theory in four dimensions (N=4SYM), where non-commutativity is introduced in the two spacelike directions. The commutative limits of non-commutative spaces are important in particular in the applications of non-commutative spaces for regularisation of supersymmetric theories (such as the use of non-commutative spaces as alternatives to lattices for supersymmetric gauge theories and interpretations of some matrix models as regularised supermembrane or superstring theories), which in turn can play a prominent role in the study of quantum gravity via the gauge/gravity duality. In general, the commutative limits are known to be singular and non-smooth due to UV/IR mixing effects. We give a direct proof that UV effects do not break the continuity of the commutative limit of the non-commutative N=4SYM to all order in perturbation theory, including non-planar contributions. This is achieved by establishing the uniform convergence (with respect to the non-commutative parameter) of momentum integrals associated with all Feynman diagrams appearing in the theory, using the same tools involved in the proof of finiteness of the commutative N=4SYM.

Journal

• Nuclear Physics B

  Nuclear Physics B 892 449-474, 2015-03

  Elsevier

Details

• CRID: 1050001335835573248
• NII Article ID: 120005766974
• ISSN: 05503213
• HANDLE: 2433/215112
• Text Lang: en
• Article Type: journal article
• Data Source:
  • IRDB
  • CiNii Articles