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One-loop QCD spin c...
One-loop QCD spin chain and its spectrum
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- Beisert, Niklas (författare)
- Princeton University,Max Planck Gesellschaft zur Förderung der Wissenschaften e.V. (MPG),Max Planck Society for the Advancement of Science (MPG)
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- Ferretti, Gabriele, 1963 (författare)
- Göteborgs universitet,University of Gothenburg,Chalmers tekniska högskola,Chalmers University of Technology
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- Heise, Rainer, 1974 (författare)
- Göteborgs universitet,University of Gothenburg
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- Zarembo, Konstantin (författare)
- Uppsala universitet,Institutionen för teoretisk fysik,Teoretisk fysik,Alikhanov Institute for Theoretical and Experimental Physics,Uppsala University
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Princeton University Max Planck Gesellschaft zur Förderung der Wissenschaften eV. (MPG) (creator_code:org_t)
- Elsevier BV, 2005
- 2005
- Engelska.
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Ingår i: Nuclear Physics B. - : Elsevier BV. - 0550-3213. ; 717:1-2, s. 137-189
- Relaterad länk:
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http://dx.doi.org/10...
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http://arxiv.org/pdf...
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https://doi.org/10.1...
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https://research.cha...
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https://research.cha...
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https://urn.kb.se/re...
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Abstract
Ämnesord
Stäng
- We study the renormalization of gauge invariant operators in large Nc QCD. We compute the complete matrix of anomalous dimensions to leading order in the 't Hooft coupling and study its eigenvalues. Thinking of the mixing matrix as the Hamiltonian of a generalized spin chain we find a large integrable sector consisting of purely gluonic operators constructed with self-dual field strengths and an arbitrary number of derivatives. This sector contains the true ground state of the spin chain and all the gapless excitations above it. The ground state is essentially the anti-ferromagnetic ground state of a XXX1 spin chain and the excitations carry either a chiral spin quantum number with relativistic dispersion relation or an anti-chiral one with non-relativistic dispersion relation.
Ämnesord
- NATURVETENSKAP -- Fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences (hsv//eng)
Nyckelord
- Spin chain
- Anomalous dimension
- Gauge theory
- Yang Mills
- Renormalization
Publikations- och innehållstyp
- art (ämneskategori)
- ref (ämneskategori)
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