Mixing of the RR and NSNS sectors in the Berenstein-Maldacena-Nastase limit
- Department of Applied Mathematics and Theoretical Physics, University of Cambridge, Wilberforce Road, Cambridge CB3 0WA (United Kingdom)
This paper concerns instanton contributions to two-point correlation functions of Berenstein-Maldacena-Nastase (BMN) operators in N=4 supersymmetric Yang-Mills theory that vanish in planar perturbation theory. Two-point functions of operators with even numbers of fermionic impurities (dual to RxR string states) and with purely scalar impurities (dual to NSxNS string states) are considered. This includes mixed RxR-NSxNS two-point functions. The gauge theory correlation functions are shown to respect BMN scaling and their behavior is found to be in good agreement with the corresponding D-instanton contributions to two-point amplitudes in the maximally supersymmetric IIB plane wave string theory. The string theory calculation also shows a simple dependence of the mass matrix elements on the mode numbers of states with an arbitrary number of impurities, which is difficult to extract from the gauge theory. For completeness, a discussion is also given of the perturbative mixing of two impurity states in the RxR and NSxNS sectors at the first nonplanar level.
- OSTI ID:
- 20782703
- Journal Information:
- Physical Review. D, Particles Fields, Vol. 73, Issue 6; Other Information: DOI: 10.1103/PhysRevD.73.066004; (c) 2006 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0556-2821
- Country of Publication:
- United States
- Language:
- English
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