Field Theory of Dual-Resonance Model

Field evaluation of a dual bentleg plow

Covariant Field Theory for Self-dual Strings

We give a gauge and manifestly SO(2,2) covariant formulation of the field theory of the self-dual string. The string fields are gauge connections that turn the super-Virasoro generators into covariant derivatives. 1 Internet address: [email protected]. 2 Internet address: [email protected].

Parametric resonance in quantum field theory.

We present the first study of parametric resonance in quantum field theory from a complete next-to-leading order calculation in a 1/N expansion of the two-particle irreducible effective action, which includes scattering and memory effects. We present a complete numerical solution for an O(N)-symmetric scalar theory and provide an approximate analytic description of the nonlinear dynamics in the...

Dual fronts in a phase field model

We study a dual front behavior observed in a reaction–diffusion system arising initially in the context of phase field models. A precursor front propagates into a stable phase, generating a metastable “intermediate phase”. This intermediate phase then decays via an oscillating front, producing a periodic structure which later coarsens. Unlike previously studied models in which dual fronts appea...

Dilatonic Deformation of AdS 5 and its Field Theory Dual

We find a nonsupersymmetric dilatonic deformation of AdS5 geometry as an exact nonsingular solution of the type IIB supergravity. The dual gauge theory has a different Yang-Mills coupling in each of the two halves of the boundary spacetime divided by a codimension one defect. We discuss the geometry of our solution in detail, emphasizing the structure of the boundary, and also study the string ...