MODULAR INVARIANCE OF SU (1,1) STRINGS

被引：74

作者：

HENNINGSON, M ^{[1
]}

HWANG, S ^{[1
]}

ROBERTS, P ^{[1
]}

SUNDBORG, B ^{[1
]}

机构：

[1] INST THEORET PHYS, S-11346 STOCKHOLM, SWEDEN

来源：

PHYSICS LETTERS B | 1991年 / 267卷 / 03期

关键词：

D O I：

10.1016/0370-2693(91)90944-L

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We investigate the question of modular invariance for a string moving on an SU (1, 1) group manifold. By including new sectors corresponding to windings around the compact time-direction, modular invariance is achieved for the discrete representations which are free of physical negative norm states. The critical spacetime dimension is less than 26.

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页码：350 / 355

页数：6

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