Fermionic Zero Mode and String Creation between D4-Branes at Angles

Details Fermionic Zero Mode and String Creation between D4-Branes at Angles Fermionic Zero Mode and String Creation between D4-Branes at Angles

1998-01-20

arxiv.org/abs/hep-th/9801135v2

Phys.Lett. B428 (1998) 68-74

Physics

High Energy Physics

High Energy Physics - Theory

10 pages, Latex

Scientific paper

10.1016/S0370-2693(98)00375-X

We study the creation of a fundamental string between D4-branes at angles in string theory. It is shown that $R(-1)^{F}$ part of the one-loop potential of open string changes its sign due to the change of fermionic zero-mode vacua when the branes cross each other. As a result the effective potential is independent of the angles when supersymmetry is partially unbroken, and leads to a consistent picture that a fundamental string is created in the process. We also discuss the s-rule in the configuration. The same result is obtained from the one-loop potential for the orthogonal D4-branes with non-zero field strength. The result is also confirmed from the tension obtained by deforming the Chern-Simons term on one D4-brane, which is induced by another tilted D4-brane.

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