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43 papers · 1 filter
Determining with Neutral and Charged Higgs Bosons at a Future Linear Collider
J. Gunion, T. Han, J. Jiang +1
The ratio of neutral Higgs field vacuum expectation values, tan(beta), is one of the most important parameters to determine in either the Minimal Supersymmetric Standard Model (MSS…
The Curvaton Hypothesis and the eta-problem of Quintessential Inflation, with and without Branes
Konstantinos Dimopoulos
It is argued why, contrary to expectations, steep brane-inflation cannot really help in overcoming the eta-problem of quintessential inflation model-building. In contrast it is sho…
Fast Monte Carlo simulations and singularities in the probability distributions of non-equilibrium systems
A. Bandrivskyy, S. Beri, D. G. Luchinsky +2
A numerical technique is introduced that reduces exponentially the time required for Monte Carlo simulations of non-equilibrium systems. Results for the quasi-stationary probabilit…
New Constraints on the running-mass inflation model
Laura Covi, David H. Lyth, Alessandro Melchiorri
We evaluate new observational constraints on the two-parameter scale-dependent spectral index predicted by the running-mass inflation model by combining the latest Cosmic Microwave…
Modelling Quintessential Inflation with Branes
Konstantinos Dimopoulos
I discuss why quintessential inflation model-building is more natural in the context of brane cosmology and study the dynamics of a particular model as an example.
A logarithmic contribution to the density of states of rectangular Andreev billiards
A. Kormányos, Z. Kaufmann, J. Cserti +1
We demonstrate that the exact quantum mechanical calculations are in good agreement with the semiclassical predictions for rectangular Andreev billiards and therefore for a large n…