منابع مشابه
Universality of the Tachyon Potential
Using string field theory, we argue that the tachyon potential on a D-brane antiD-brane system in type II string theory in arbitrary background has a universal form, independent of the boundary conformal field theory describing the brane. This implies that if at the minimum of the tachyon potential the total energy of the brane antibrane system vanishes in a particular background, then it vanis...
متن کاملHagedorn divergences and tachyon potential
We consider the critical behavior for a string theory near the Hagedorn temperature. We use the factorization of the worldsheet to isolate the Hagedorn divergences at all genera. We show that the Hagedorn divergences can be resummed by introducing double scaling limits, which smooth the divergences. The double scaling limits also allow one to extract the effective potential for the thermal scal...
متن کاملThe Tachyon Potential in the Sliver Frame
We evaluate the tachyon potential in the Schnabl gauge through off-shell computations in the sliver frame. As an application of the results of our computations, we provide a strong evidence that Schnabl’s analytic solution for tachyon condensation in open string field theory represents a saddle point configuration of the full tachyon potential. Additionally we verify that Schnabl’s analytic sol...
متن کاملLevel Truncated Tachyon Potential in Various Gauges
New gauge fixing condition with single gauge parameter proposed by the authors is applied to the level truncated analysis of tachyon condensation in cubic open string field theory. It is found that the only one real non-trivial extremum persists to appear in the well-defined region of the gauge parameter, while the other solutions are turned out to be gauge-artifacts. Contrary to the previously...
متن کاملTachyon Potential in a Magnetic Field with Anomalous Dimensions
Products defined in the context of noncommutative gauge theory allow for an interpolation between exact results on tachyon potentials at zero and large background B-fields. Techniques for computations of effective actions are transposed from the framework of gauge theory to the framework of boundary string field theory, resulting in deformations of the noncommutative tachyon potential by anomal...
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ژورنال
عنوان ژورنال: Progress of Theoretical Physics
سال: 2010
ISSN: 0033-068X,1347-4081
DOI: 10.1143/ptp.124.567