PERTURBATIVE DYNAMICS OF FRACTIONAL STRINGS ON MULTIPLY WOUND D-STRINGS
نویسندگان
چکیده
منابع مشابه
Perturbative Dynamics of Fractional Strings on Multiply Wound D-strings
Fractional strings in the spectrum of states of open strings attached to a multiply wound D-brane is explained. We first describe the fractional string states in the low-energy effective theory where the topology of multiple winding is encoded in the gauge holonomy. The holonomy induces twisted boundary conditions responsible for the fractional moding of these states. We also describe fractiona...
متن کاملNon - Perturbative Strings Effects
Computations of non-perturbative contributions is still a difficult task. In (supersymmetric) Field theory a direct computation requires the construction of the measure of integration over vacua containing n-instantons, which is not yet available for every n. The use of dualities is still the main tool for getting the answer. In String theory the D-instantons contributions for the R4 were conje...
متن کاملDynamics of Dirichlet-Neumann Open Strings on D-branes
Method for computing scattering amplitudes of open strings with Dirichlet boundary on one end and Neumann boundary condition on the other is described. Vertex operator for these states are constructed using twist fields which have been studied previously in the context of Ashkin-Teller model and strings on orbifolds. Using these vertex operators, we compute the threeand four-point scattering am...
متن کاملCosmic D-strings as Axionic D-term Strings
In this work we derive non-singular BPS string solutions from an action that captures the essential features of aD−brane-anti-D−brane system compactified to four dimensions. The model we consider is a supersymmetric abelian Higgs model with a D−term potential coupled to an axion-dilaton multiplet. The strings in question are axionic D−term strings which we identify with the D−strings of type II...
متن کاملDomain Lines as Fractional Strings
We consider N = 2 supersymmetric quantum electrodynamics (SQED) with 2 flavors, the Fayet–Iliopoulos parameter, and a mass term β which breaks the extended supersymmetry down to N = 1. The bulk theory has two vacua; at β = 0 the BPS-saturated domain wall interpolating between them has a moduli space parameterized by a U(1) phase σ which can be promoted to a scalar field in the effective low-ene...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: International Journal of Modern Physics A
سال: 1998
ISSN: 0217-751X,1793-656X
DOI: 10.1142/s0217751x98000408