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arXiv 0710.3186hep-th
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开弦通道中作为相干态的D-膜

D-branes as coherent states in the open string channel

Marcelo Botta Cantcheff

摘要:

我们证明了玻色D膜态在开弦表象中可以表示为相干态。利用热场动力学(TFD)理论,我们可以构造一个开弦模的凝聚态,它编码了D膜组态的信息。我们还介绍了一种结构替代TFD,它不需要假设热平衡。结果表明,系统的动力学与TFD的复制规则的几何性质相结合,是足以获得的热状态和它们的解析延拓的几何方式。我们用这种方法证明了开弦扇区中的玻色D膜态在特殊意义下也可以构造为边界态。一些影响,这项研究的解释上的开放/封闭的对偶性和运动学/代数结构的开放弦场论也进行了评论。

英文摘要:

We show that bosonic D-brane states may be represented as coherent states in an open string representation. By using the Thermo-Field Dynamics (TFD) formalism, we may construct a condensed state of open string modes which encodes the information on the D-brane configuration. We also introduce a construction alternative to TFD, which does not requires to assume thermal equilibrium. It is shown that the dynamics of the system combined with geometric properties of the duplication rules of TFD is sufficient to obtain the thermal states and their analytic continuations in a geometric fashion. We use this approach to show that bosonic D-brane state in the open string sector may also be built as boundary states in a special sense. Some implications of this study on the interpretation of the open/closed duality and on the kinemathic/algebraic structure of an open string field theory are also commented.

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