New integrable structures in large-N QCD
Journal Article
·
· Physical Review. D, Particles Fields
- Institute for Theoretical Physics, Goeteborg University and Chalmers University of Technology, 412 96 Goeteborg (Sweden)
We study the anomalous dimensions of single trace operators composed of field strengths F{sub {mu}}{sub {nu}} in large-N QCD. The matrix of anomalous dimensions is the Hamiltonian of a compact spin chain with two spin one representations at each vertex corresponding to the self-dual and anti-self-dual components of F{sub {mu}}{sub {nu}}. Because of the special form of the interaction it is possible to study separately renormalization of purely self-dual components. In this sector the Hamiltonian is integrable and can be exactly solved by Bethe ansatz. Its continuum limit is described by the level two SU(2) Wess-Zumino-Witten model.
- OSTI ID:
- 20705348
- Journal Information:
- Physical Review. D, Particles Fields, Journal Name: Physical Review. D, Particles Fields Journal Issue: 7 Vol. 70; ISSN PRVDAQ; ISSN 0556-2821
- Country of Publication:
- United States
- Language:
- English
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