منابع مشابه
Solution–generating Transformations and the String Effective Action
We study exhaustively the solution-generating transformations (dualities) that occur in the context of the low-energy e ective action of superstring theory. We rst consider target-space duality (\T duality") transformations in absence of vector elds. We nd that for one isometry the full duality group is (SO"(1; 1)) D4, the discrete part (D4) being nonAbelian. We, then, include non-Abelian Yang{...
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The concept of symmetry was and remains a very powerful tool for construction of the quantum field theory. One of its main virtues is that the symmetry restricts a form of the action, which lies in the ground of the theory. Consequences of the classical symmetry play a crucial role for renormalizability of the quantum theory. And in the investigation of this problem the effective action takes a...
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Certain scattering amplitudes in the gravitational sector of type II string theory on K3 × T 2 are found to be computed by correlation functions of the N = 4 topological string. This analysis extends the already known results for K3 by Berkovits and Vafa, which correspond to six-dimensional terms in the effective action, involving four Riemann tensors and 4g − 4 graviphotons, R4T 4g−4, at genus...
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The dynamical properties of the gauge theory of Born-Infeld type action, which is expected as the high-energy effective theory, are investigated by adding a complex scalar field to this gauge system. Especially the Coleman-Weinberg mechanism is addressed in this theory. ∗ e-mail address: [email protected] † e-mail address: [email protected] 1
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ژورنال
عنوان ژورنال: Physics Letters B
سال: 1995
ISSN: 0370-2693
DOI: 10.1016/0370-2693(95)01035-o