Spin Chain for Quantum Strings

Details Spin Chain for Quantum Strings Spin Chain for Quantum Strings

2004-09-03

arxiv.org/abs/hep-th/0409054v2

Fortsch.Phys.53:852-860,2005

Physics

High Energy Physics

High Energy Physics - Theory

10 pages, Contribution to RTN and EXT Workshop, Kolymbari, Crete, Greece, 5-10 September 2004, v2: numerical comparision with

Scientific paper

10.1002/prop.200410207

We review and compare the integrable structures in N=4 gauge theory and string theory on AdS5xS5. Recently, Bethe ansaetze for gauge theory/weak coupling and string theory/strong coupling were proposed to describe scaling dimensions in the su(2) subsector. Here we investigate the Bethe equations for quantum string theory, naively extrapolated to weak coupling. Excitingly, we find a spin chain Hamiltonian similar, but not equal, to the gauge theory dilatation operator.

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