BRST ghosts as worldsheet parameters in gauge-invariant string field theory

Sumit R. Das, Mark A. Rubin

Research output: Contribution to journalArticlepeer-review

5 Scopus citations


The closed and open bosonic strings are quantized in the Tomonaga-Schwinger-Dirac (TSD) formalism. This leads to a gauge-invariant second-quantized free string field theory. The worldsheet parameters are dynamical variables which, in the quantum theory, are represented by anticommuting operators. This TSD quantization is seen to be formally identical to the BRST quantization and provides a geometrical interpretation of the anticommuting BRST ghosts as quantized worldsheet parameters.

Original languageEnglish
Pages (from-to)81-86
Number of pages6
JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Issue number1-2
StatePublished - Nov 27 1986

ASJC Scopus subject areas

  • Nuclear and High Energy Physics


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