On limit cycles in supersymmetric theories

Limit cycles in quantum theories.

Renormalization group limit cycles and more chaotic behavior may be commonplace for quantum Hamiltonians requiring renormalization, in contrast to experience based on classical models with critical behavior, where fixed points are far more common. We discuss the simplest quantum model Hamiltonian identified so far that exhibits a renormalization group with both limit cycle and chaotic behavior....

Inflation in large N limit of supersymmetric gauge theories

Within supersymmetry we provide an example where the inflaton sector is derived from a gauge invariant polynomial of SU(N) or SO(N) gauge theory. Inflation in our model is driven by multi-flat directions, which assist accelerated expansion. We show that multi-flat directions can flatten the individual nonrenormalizable potentials such that inflation can occur at sub-Planckian scales. We calcula...

Central and Local Limit Theories in Markov Dependent Random Variables

Preheating in Supersymmetric Theories

We examine the particle production via preheating at the end of inflation in supersymmetric theories. The inflaton and matter scalars are now necessarily complex fields, and their relevant interactions are restricted by holomorphy. In general this leads to major changes both in the inflaton dynamics and in the efficiency of the preheating process. In addition, supersymmetric models generically ...

On String Junctions in Supersymmetric Gauge Theories

We study junctions consisting of confining strings in N = 1 supersymmetric large N gauge theories by means of the gauge/gravity correspondence. We realize them as D-brane configurations in infrared geometries of the Klebanov-Strassler (KS) and the Maldacena-Núñez (MN) solutions. After discussing kinematics associated with the balance of tensions, we compute energies of baryon vertices numerical...