The spacetime superalgebras from M-branes in M-brane backgrounds

被引：11

作者：

Sato, T ^{[1
]}

机构：

[1] Univ Tokyo, Inst Cosm Ray Res, Tanashi, Tokyo 1888502, Japan

来源：

PHYSICS LETTERS B | 1998年 / 439卷 / 1-2期

关键词：

D O I：

10.1016/S0370-2693(98)00998-8

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We derive the spacetime superalgebras explicitly from "test" M-brane actions in M-brane backgrounds to the lowest order in theta via canonical formalism, and discuss various BPS saturated configurations on the basis of their central charges which depend on the harmonic functions determined by the backgrounds. Ail the 1/4 supersymmetric intersections of two M-branes obtained previously are deduced from the requirement of the test branes to be so "gauge fixed" in the brane backgrounds as to preserve 1/4 supersymmetry. Furthermore, some of 1/2-supersymmetric bound states of two M-branes are deduced from the behavior of the harmonic functions in the limits of vanishing distances of the two branes. The possibilities of some triple intersections preserving 1/4 supersymmetry are also discussed. (C) 1998 Elsevier Science B.V. All rights reserved.

引用

页码：12 / 22

页数：11

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