Operator Mixing and the BMN Correspondence

Details Operator Mixing and the BMN Correspondence Operator Mixing and the BMN Correspondence

2002-09-02

arxiv.org/abs/hep-th/0209002v2

JHEP 0210:068,2002

Physics

High Energy Physics

High Energy Physics - Theory

18pp. Harvmac. v2: Explanation of degeneracy added to end of section 2, minor corrections

Scientific paper

10.1088/1126-6708/2002/10/068

In this note we update the discussion of the BMN correspondence and string interactions in hep-th/0205089 to incorporate the effects of operator mixing. We diagonalize the matrix of two point functions of single and double trace operators, and compute the eigen-operators and their anomalous dimensions to order g_2^2 \lambda'. Surprisingly, operators in different R symmetry multiplets remain degenerate at this order. We also calculate the corresponding energy shifts in string theory, and find a discrepancy with field theory results, indicating possible new effects in light-cone string field theory.

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