标题： 闭弦玻色理论和II型弦理论微扰特征的T对偶性 显示英文标题

标题： T Duality of Perturbative Characters for Closed Bosonic and Type II String Theories

摘要： 研究了与横向时空旋转相关的微扰弦特征的对偶性质。 与早期讨论相反，T 对偶性是通过对总动量进行适当的积分来实现的。 推导出了临界超弦特征的O(8)三重性性质。 这表明存在第三种表述（据我们所知，尚未被注意到），它等价于但不同于Neveu-Schwarz-Ramond和Green-Schwarz的表述。 在GS形式主义中定义了NS和R扇区的投影算符。 通过分解长SUSY多重子的特征，可以一次性简洁地推导出所有有质量态的超对称后果。 显示英文摘要

摘要： The duality properties of perturbative string characters associated with the transverse space-time rotations are studied. T duality is achieved by suitably integrating over the total momentum, contrary to earlier discussions. The O(8) triality properties of the characters for critical superstrings, are derived. This shows the existence of a third formulation (unnoticed so far to our knowledge) equivalent to, but different from the ones of Neveu-Schwarz-Ramond, and Green-Schwarz. Projectors in the NS and R sectors are defined in the GS formalism. The consequences of supersymmetry are neatly derived at once for all massive states by factorising the character of the long SUSY multiplet.