Simplifying and extending the AdS(5) x S-5 pure spinor formalism

Autor(es)

Berkovits, Nathan

• Tipo de documento: Artigo Científico
• Fonte: Journal of High Energy Physics; v. N/A, n. 9, p. 34-pg., 2009-09-01.

Resumo

Although the AdS(53) x S-5 worldsheet action is not quadratic, some features of the pure spinor formalism are simpler in an AdS(5) x S-5 background than in a flat background. The BRST operator acts geometrically, the left and right-moving pure spinor ghosts can be treated as complex conjugates, the zero mode measure factor is trivial, and the b ghost does not require non-minimal fields. Furthermore, a topological version of the AdS(5) x S-5 action with the same worldsheet variables and BRST operator can be constructed by gauge-fixing a GIG principal chiral model where G = PSU(2,2|4). This topological model is argued to describe the zero radius limit that is dual to free N = 4 super-Yang-Mills and can also be interpreted as an "unbroken phase" of superstring theory. (AU)

• Processo FAPESP: 04/11426-0 - Pesquisa e ensino em teoria de cordas
• Beneficiário: Nathan Jacob Berkovits
• Modalidade de apoio: Auxílio à Pesquisa - Temático