| Project/Area Number |
19740164
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Single-year Grants |
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| Research Field |
Particle/Nuclear/Cosmic ray/Astro physics
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| Research Institution | The Institute of Physical and Chemical Research |
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Principal Investigator |
MURAKAMI Koichi The Institute of Physical and Chemical Research, 川合理論物理学研究室, 協力研究員 (00400698)
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| Project Period (FY) |
2007 – 2009
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| Project Status |
Completed (Fiscal Year 2009)
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| Budget Amount *help |
¥3,440,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥540,000)
Fiscal Year 2009: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2008: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2007: ¥1,100,000 (Direct Cost: ¥1,100,000)
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| Keywords | 弦理論 / 弦の場の理論 / D-ブレーン / BRST対称性 / 超対称性 / 超弦理論 / BRST不変性 |
|---|
| Research Abstract |
We propose a description of D-branes, which are solitons in string theory, as BRST invariant second-quantized states in the OSp invariant closed bosonic string field theory. For the purpose of a supersymmetric extension of this construction, we investigate the light-cone gauge NSR superstring field theory. We propose a dimensional regularization scheme to regularize the unwanted divergences in this string field theory. In order to verify our prescription, we construct a superconformal field theory in noncritical dimensions as a worldsheet theory for such string theory.
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