S-DUALITY AT THE BLACK-HOLE THRESHOLD IN GRAVITATIONAL COLLAPSE

被引:31
作者
EARDLEY, DM
HIRSCHMANN, EW
HORNE, JH
机构
[1] UNIV CALIF SANTA BARBARA, DEPT PHYS, SANTA BARBARA, CA 93106 USA
[2] UNIV CAMBRIDGE, DEPT APPL MATH & THEORET PHYS, CAMBRIDGE CB3 9EW, ENGLAND
关键词
D O I
10.1103/PhysRevD.52.R5397
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
We study gravitational collapse of the axion-dilaton field in classical low energy string theory, at the threshold for black hole formation. A new critical solution is derived that is spherically symmetric and continuously. self-similar. The universal scaling and echoing behavior discovered by Choptuik in gravitational collapse appears in a somewhat different form. In particular, echoing takes the form of SL(2,R) rotations (cf., S duality). The collapse leaves behind an outgoing pulse of axion-dilation radiation, with nearly but not exactly flat spacetime within it.
引用
收藏
页码:R5397 / R5401
页数:5
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