Taming the b antighost with Ramond-Ramond flux
作者： Nathan Berkovits , Luca Mazzucato
关键词: Superstring theory 、 Pure spinor 、 Spinor 、 Supergravity 、 Physics 、 Bispinor 、 Anti-de Sitter space 、 Mathematical physics 、 BRST quantization 、 Quantum electrodynamics 、 Holomorphic function
摘要: In the pure spinor formalism for superstring, b antighost is necessary multiloop amplitude computations and a composite operator constructed to satisfy {Q, b}= T where Q BRST holomorphic stress-tensor. superstring backgrounds with only NS-NS fields turned on, or in flat space, one needs introduce “non-minimal” variables order construct antighost. However, Type II Ramond-Ramond bispinor field-strength satisfies certain conditions, can be without non-minimal variables. Although these not holomorphic, its antiholomorphic derivative BRST-trivial. We discuss properties of this both AdS 5×S 5 background generic curved background.
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