Covariant quantization of the superstring
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Data
2001-02-20
Autores
Berkovits, Nathan [UNESP]
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Resumo
After reviewing the Green-Schwarz superstring using the approach of Siegel, the superstring is covariantly quantized by constructing a BRST operator from the fermionic constraints and a bosonic pure spinor ghost variable. Physical massless vertex operators are constructed and, for the first time, N-point tree amplitudes are computed in a manifestly ten-dimensional super-Poincaré covariant manner. Quantization can be generalized to curved supergravity backgrounds and the vertex operator for fluctuations around AdS 5 x S 5 is explicitly constructed.
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calculation, conference paper, measurement, nuclear physics
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International Journal of Modern Physics A, v. 16, n. 5, p. 801-811, 2001.