Heterotic versus type I

被引:32
作者
Bachas, C [1 ]
机构
[1] Ecole Polytech, Ctr Phys Theor, F-91128 Palaiseau, France
关键词
D O I
10.1016/S0920-5632(98)00169-8
中图分类号
O412 [相对论、场论]; O572.2 [粒子物理学];
学科分类号
摘要
I compare the (prototype) calculations of special F-4 and R-4 terms in the effective actions of the Spin(32)/Z(2) heterotic and type I string theories, compactified on S-1 and T-2. Besides checking duality, this elucidates the quantitative rules of D-brane calculus. I explain in particular (a) why D-branes do not run in loops, and (b) how their instanton contributions arise from orbifold fixed points of their moduli space.
引用
收藏
页码:348 / 354
页数:7
相关论文
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