Dualities and the SL(2,Z) anomaly
Dualities and the SL(2,Z) anomaly
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对偶性和 SL(2,Z) 异常
DOI:
10.1088/1126-6708/1998/12/006
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发表时间:
1998
期刊:
影响因子:
--
通讯作者:
S. Mukhi
中科院分区:
文献类型:
--
作者:
S. Mukhi
The SL(2,Z) anomaly recently derived for type IIB supergravity in 10 dimensions is shown to be a consequence of T-duality with the type IIA string, after compactification to 2 dimensions on an 8-fold. This explains the identity of the gravitational 8-forms appearing in different contexts in the effective actions of type IIA and IIB string theories. In this framework, constraints on the compactification manifold arise from modular invariance of the 2d theory. Related issues in 6 dimensions are examined, and it is argued that similar anomalies are present on the worldvolumes of M-theory 5-branes and orientifold 5-planes.