Heterotic versus type I

被引：32

作者：

Bachas, C ^{[1
]}

机构：

[1] Ecole Polytech, Ctr Phys Theor, F-91128 Palaiseau, France

来源：

NUCLEAR PHYSICS B-PROCEEDINGS SUPPLEMENTS | 1998年 / 68卷

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

页码：348 / 354

页数：7

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