Operator formulation of superstring multiloop amplitudes

Z. F. Ezawa, A. Tezuka, K. Harada, S. Watamura

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)


An operator formulation of the superstring is presented, where the covariantized picture-changing operator is inserted to each 3-string vertex and the b ghost into each propagator. In this formalism all spin structure can be treated equally at the same time, and the g-loop amplitude is explicitly calculable from its building blocks, i.e., the propagators and the 3-string vertices. The resulting amplitude agrees with the standard one obtained by applying the techniques of algebraic geometry in the functional formalism.

Original languageEnglish
Pages (from-to)2704-2709
Number of pages6
JournalPhysical Review D
Issue number8
Publication statusPublished - 1990

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)


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