Can we construct the enhanc¸on configuration with D2-D6 branes shell?
作者:
Takashi Torii,
Kengo Maeda,
Makoto Narita,
Shigeaki Yahikozawa,
期刊:
AIP Conference Proceedings
(AIP Available online 1902)
卷期:
Volume 607,
issue 1
页码: 349-350
ISSN:0094-243X
年代: 1902
DOI:10.1063/1.1454406
出版商: AIP
数据来源: AIP
摘要:
The stability of the shell of wrapped D6-branes on K3 is investigated from the point of view of supergravity. We first construct an effective energy-momentum tensor for the shell under the reasonable conditions and show that supersymmetric solutions satisfy Israel’s junction conditions at arbitrary radius of the shell. Next we study the perturbation of the whole system including the self-gravity of the shell. It is found that in spite of the existence of wrapped D6-branes with negative tension, there is no eigenmode whose frequencies of the shell and the fields are imaginary numbers, at any radius of the shell. Furthermore, when the radius of the shell is less than the enhanc¸on radius, resonances are produced, and this indicates a kind of “instability” of the system. This can even classically explain why the shell is constructed at the enhanc¸on radius. ©2002 American Institute of Physics.
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