8,334 research outputs found
Gap Symmetry and Thermal Conductivity in Nodal Superconductors
Here we consider the universal heat conduction and the angular dependent
thermal conductivity in the vortex state for a few nodal superconductors. We
present the thermal conductivity as a function of impurity concentration and
the angular dependent thermal conductivity in a few nodal superconductors. This
provides further insight in the gap symmetry of superconductivity in
SrRuO and UPdAl.Comment: 2 pages, proceedings of SCES '0
Supergravity Minimal Inflation and its Spectral Index Revisited
Natural supergravity models of new inflation are reconsidered as minimal
inflationary models within slow-roll approximation. Their running spectral
index is derived in a revised form with recent observational results and future
refinements in mind. This will possibly determine essential model parameters
with respect to Planck-suppressed operators.Comment: 7 pages, late
R-Invariant Dilaton Fixing
We consider dilaton stabilization with R invariance, which insures a
vanishing cosmological constant at the scale of stabilization. We construct a
few models which accommodate weak gauge couplings with large or small gauge
groups. Matter condensation plays a central role in the dilaton stabilization.Comment: 8 pages, references adde
Realization of Minimal Supergravity
Minimal supergravity mediation of supersymmetry breaking has attracted much
attention due to its simplicity, which leads to its predictive power. We
consider how Nature possibly realizes minimal supergravity through inflationary
selection of the theory. Minimality is impressively consistent with the present
observational bounds and it might be tested with the aid of low-energy soft
parameters obtained in future experiments.Comment: 18 pages, 5 figure
Supersymmetry-Breaking Models of Inflation
We consider dynamical models of supersymmetry breaking which naturally
incorporate cosmological inflation. The inflaton plays an inevitable role in
dynamical SUSY breaking and the hierarchical scales of inflation and SUSY
breaking are simultaneously realized through a single dynamics.Comment: 4 pages, late
Strongly Coupled Messenger Gauge Theory
We consider gauge-mediated models of supersymmetry (SUSY) breaking with
strongly coupled nonabelian messenger gauge theory. After integrating out the
SUSY-breaking and messenger sectors, we directly see that the effective Kahler
potential transmits the SUSY breaking to the standard model sector.Comment: 7 pages, late
- …