Direct Derivation of the Comma 3-Vertex in the Full String Basis

• 作者: A. Abdurrahman M. Gassem
• 来源期刊: 现代物理(英文)
• 学科: 数学
• 关键词: STRING THEORY Witten’s THEORY Open BOSONIC STRING
• 年，卷（期）: xdwlyw_2019,（10）
• 页码范围: 1271-1298
• 页数: 28页
• 分类号: O1

摘要

The interacting comma 3-vertex for the bosonic open string in the full string basis is derived using the half string overlap relations directly. Thus avoiding the coherent states technique employed in earlier derivations. The resulting form of the interacting 3-vertex turns out to be precisely the desired expression obtained in terms of the full string oscillator modes. This derivation establishes that the comma 3-vertex and Witten’s 3-vertex are identical and therefore are interchangeable.