Feb, 2013
Null-polygonal minimal surfaces in AdS(4) from perturbed W minimal models
JOURNAL OF HIGH ENERGY PHYSICS
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- ,
- Volume
- Number
- 2
- Language
- English
- Publishing type
- Research paper (scientific journal)
- DOI
- 10.1007/JHEP02(2013)067
- Publisher
- SPRINGER
We study the null-polygonal minimal surfaces in AdS(4), which correspond to the gluon scattering amplitudes/Wilson loops in N = 4 super Yang-Mills theory at strong coupling. The area of the minimal surfaces with it cusps is characterized by the thermodynamic Bottle ansatz (TBA) integral equations or the Y-system of the homogeneous sine-Gordon model, which is regarded as the SU(n - 4)(4)/U(1)(n-5) generalized parafermion theory perturbed by the weight-zero adjoint operators. Based on the relation to the TBA systems of the perturbed W minimal models, we solve the TBA equations by using the conformal perturbation theory, and obtain the analytic expansion of the remainder function around the UV/regular-polygonal limit for n = 6 and 7. We compare the rescaled remainder function for n = 6 with the two-loop one, to observe that they are close to each other similarly to the AdS(3) case.
- Link information
- ID information
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- DOI : 10.1007/JHEP02(2013)067
- ISSN : 1029-8479
- Web of Science ID : WOS:000316272900067