Massive Vertex Operators and Conformal Algebra of the Bosonic Open String Theory in Flat Space-time

2009/07/30 by Chuan-Tsung Chan, Chan, Chuan-Tsung, Wei-Ming Chen +1 · 1 citation
Physics and Astronomy · #Black Holes and Theoretical Physics #Cosmology and Gravitation Theories #FOS: Physical sciences #High Energy Physics - Theory (hep-th) #Noncommutative and Quantum Gravity Theories #hep-th

paper · pdf · doi:10.48550/arxiv.0907.5347

16 pages, typos corrected

openalex publication_date 2009/07/30 · arxiv created 2009/08/19 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

A systematic scheme is developed for solving conformal algebra of the massive vertex operators in the old covariant first quantized string theory. Using the first massive level in the covariant spectrum of bosonic open string theory in flat space-time as an example, we explicitly verify the conformal algebra for the normal-ordered covariant vertex operator. We emphasize that the requirement of fully covariant gauge-fixing specifies the form of normal-ordering for massive vertex operators.

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• Vertex Operators and Scattering Amplitudes of the Bosonic Open String Theory in the Linear Dilaton Background

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