Dual superconformal symmetry, and the amplitude/Wilson loop connection


Autoria(s): Berkovits, Nathan; Maldacena, Juan
Contribuinte(s)

Universidade Estadual Paulista (UNESP)

Data(s)

20/05/2014

20/05/2014

01/09/2008

Resumo

We show that tree level superstring theories on certain supersymmetric backgrounds admit a symmetry which we call "fermionic T-duality". This is a non-local redefinition of the fermionic worldsheet fields similar to the redefinition we perform on bosonic variables when we do an ordinary T-duality. This duality maps a supersymmetric background to another supersymmetric background with different RR fields and a different dilaton. We show that a certain combination of bosonic and fermionic T-dualities maps the full superstring theory on AdS(5) x S-5 back to itself in such a way that gluon scattering amplitudes in the original theory map to something very close to Wilson loops in the dual theory. This duality maps the "dual superconformal symmetry" of the original theory to the ordinary superconformal symmetry of the dual model. This explains the dual superconformal invariance of planar scattering amplitudes of N = 4 super Yang Mills and also sheds some light on the connection between amplitudes and Wilson loops. In the appendix, we propose a simple prescription for open superstring MHV tree amplitudes in a flat background.

Formato

44

Identificador

http://dx.doi.org/10.1088/1126-6708/2008/09/062

Journal of High Energy Physics. Trieste: Int School Advanced Studies, n. 9, p. 44, 2008.

1126-6708

http://hdl.handle.net/11449/24033

10.1088/1126-6708/2008/09/062

WOS:000259699700075

Idioma(s)

eng

Publicador

Int School Advanced Studies

Relação

Journal of High Energy Physics

Direitos

closedAccess

Palavras-Chave #supersymmetry and duality #AdS-CFT correspondence
Tipo

info:eu-repo/semantics/article