The Off-shell Symmetry Algebra of the Light-cone AdS(5) x S**5 Superstring
Sep, 2006
30 pages
Published in:
- J.Phys.A 40 (2007) 3583-3606
e-Print:
- hep-th/0609157 [hep-th]
Report number:
- AEI-2006-071,
- HU-EP-06-31,
- ITP-UU-06-39,
- SPIN-06-33,
- TCDMATH-06-13
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Abstract:
We analyze the psu(2,2|4) supersymmetry algebra of a superstring propagating in the AdS_5 x S^5 background in the uniform light-cone gauge. We consider the off-shell theory by relaxing the level-matching condition and take the limit of infinite light-cone momentum, which decompactifies the string world-sheet. We focus on the psu(2|2)+psu(2|2) subalgebra which leaves the light-cone Hamiltonian invariant and show that it undergoes extension by a central element which is expressed in terms of the level-matching operator. This result is in agreement with the conjectured symmetry algebra of the dynamic S-matrix in the dual N=4 gauge theory.Note:
- 30 pages, one figure Report-no: AEI-2006-071, HU-EP-06/31, ITP-UU-06-39, TCDMATH 06-13
- 11.30.Pb
- 11.25.-w
- 11.25.Hf
- supersymmetry: algebra
- superstring
- space-time: anti-de Sitter
- light cone gauge
- string model
- space: S(5)
- dimension: 10
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