Zobrazeno 1 - 10
of 148
pro vyhledávání: '"Sieg, C."'
Autor:
Minahan, J. A., Sieg, C.
We determine the scalar part of the four-loop chiral dilatation operator for Leigh-Strassler deformations of N=4 super Yang-Mills. This is sufficient to find the four-loop anomalous dimensions for operators in closed scalar subsectors. This includes
Externí odkaz:
http://arxiv.org/abs/1112.4787
Autor:
Sieg, C.
We review the constructions and tests of the dilatation operator and of the spectrum of composite operators in the flavour SU(2) subsector of N=4 SYM in the planar limit by explicit Feynman graph calculations with emphasis on analyses beyond one loop
Externí odkaz:
http://arxiv.org/abs/1012.3984
Autor:
Leoni, M., Mauri, A., Minahan, J. A., Sax, O. Ohlsson, Santambrogio, A., Sieg, C., Tartaglino-Mazzucchelli, G.
Publikováno v:
JHEP 1012:074,2010
Using N=2 superspace techniques we compute the four-loop spectrum of single trace operators in the SU(2) x SU(2) sector of ABJM and ABJ supersymmetric Chern-Simons theories. Our computation yields a four-loop contribution to the function h^2(\lambda)
Externí odkaz:
http://arxiv.org/abs/1010.1756
There is a large amount of evidence that the ABJM model is integrable in the planar limit. Less clear is whether or not the ABJ model is integrable. Here we investigate a limit of the ABJ model in the weak coupling limit where one 't Hooft parameter
Externí odkaz:
http://arxiv.org/abs/1005.1786
Publikováno v:
Nucl.Phys.B846:542-606,2011
In arXiv:0908.2463 we computed the four-loop correction to a function depending on the 't Hooft coupling(s) that appears in the magnon dispersion relation of the spin chains derived from single trace operators in N=6 superconformal Chern-Simons theor
Externí odkaz:
http://arxiv.org/abs/0912.3460
Publikováno v:
J.Phys.A43:275402,2010
The ABJM model is a superconformal Chern-Simons theory with N=6 supersymmetry which is believed to be integrable in the planar limit. However, there is a coupling dependent function that appears in the magnon dispersion relation and the asymptotic Be
Externí odkaz:
http://arxiv.org/abs/0908.2463
Publikováno v:
JHEP0808:057,2008
We study finite size effects for composite operators in the SU(2) sector of the superconformal beta-deformed N=4 SYM theory. In particular we concentrate on the spectrum of one single magnon. Since in this theory one-impurity states are non BPS we co
Externí odkaz:
http://arxiv.org/abs/0806.2103
Publikováno v:
Nucl.Phys.B805:231-266,2008
In this paper we give all the details of the calculation that we presented in our previous paper arXiv:0712.3522, concerning the four-loop anomalous dimension of the Konishi descendant tr(\phi Z\phi Z-\phi \phi Z Z) in the SU(2) sector of the N=4 pla
Externí odkaz:
http://arxiv.org/abs/0806.2095
Publikováno v:
Phys.Lett.B666:100-105,2008
We present the planar four-loop anomalous dimension of the composite operator tr(phi[Z,phi]Z) in the flavour SU(2) sector of the N=4 SYM theory. At this loop order wrapping interactions are present: they give rise to contributions proportional to zet
Externí odkaz:
http://arxiv.org/abs/0712.3522
Publikováno v:
Fortsch.Phys. 52 (2004) 684-689
We discuss the scalar propagator on generic AdS_{d+1} x S^{d'+1} backgrounds. For the conformally flat situations and masses corresponding to Weyl invariant actions the propagator is powerlike in the sum of the chordal distances with respect to AdS_{
Externí odkaz:
http://arxiv.org/abs/hep-th/0402020