Physical state representations and gauge fixing in string theory

Details Physical state representations and gauge fixing in string theory Physical state representations and gauge fixing in string theory

2005-09-26

arxiv.org/abs/hep-th/0509188v1

JHEP0511:033,2005

Physics

High Energy Physics

High Energy Physics - Theory

16 pages

Scientific paper

10.1088/1126-6708/2005/11/033

We re-examine physical state representations in the covariant quantization of bosonic string. We especially consider one parameter family of gauge fixing conditions for the residual gauge symmetry due to null states (or BRST exact states), and obtain explicit representations of observable Hilbert space which include those of the DDF states. This analysis is aimed at giving a necessary ingredient for the complete gauge fixing procedures of covariant string field theory such as temporal or light-cone gauge.

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