Path-Integral Formulation of Dirichlet String in General Backgrounds

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dc.creatorKar, Supriya
dc.date1998-12-24
dc.date1999-05-11
dc.date.accessioned2026-07-07T11:36:19Z
dc.date.available2026-07-07T11:36:19Z
dc.descriptionWe investigate the dynamics of an arbitrary Dirichlet (D-) string in presence of general curved backgrounds following a path-integral formalism. In particular, we consider the interaction of D-string with the massless excitations of closed string in open bosonic string theory. The background fields induce invariant curvatures on the D-string manifold and the extrinsic curvature can be seen to contain a divergence at the disk boundary. The re-normalization of D-string coordinates, next to the leading order in its derivative expansion, is performed to handle the divergence. Then we obtain the generalized Dirac-Born-Infeld action representing the effective dynamics of D-string in presence of the non-trivial backgrounds. On the other hand, D-string acts as a source for the Ramond-Ramond two-form which induces an additional (lower) form due to its coupling to the U(1) gauge invariant fields on the D-string. These forms are reviewed in this formalism for an arbitrary D-string and is encoded in the Wess-Zumino action. Quantization of the D-string collective coordinates, in the U(1) gauge sector, is performed by taking into account the coupling to the lower form and the relevant features of D-string are analyzed in presence of the background fields.
dc.description23 pages, LaTex, corrected typos, added reference, version to appear in Nuclear Physics B
dc.identifierhttps://arxiv.org/abs/hep-th/9812230
dc.identifierhttp://arxiv.org/abs/hep-th/9812230
dc.identifierNucl.Phys.B554:163-182,1999
dc.identifierdoi:10.1016/S0550-3213(99)00292-8
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/198878
dc.subjectHigh Energy Physics - Theory
dc.titlePath-Integral Formulation of Dirichlet String in General Backgrounds
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