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13 papers · 2 filters
Quantum Magnetic Collapse
M. Chaichian, S. S. Masood, C. Montonen +2
We study the thermodynamics of degenerate electron and charged vector boson gases in very intense magnetic fields. In degenerate conditions of the electron gas, the pressure transv…
Generic Gravitational Corrections to Gauge Couplings in SUSY SU(5) GUTs
Katri Huitu, Yoshiharu Kawamura, Tatsuo Kobayashi +1
We study non-universal corrections to the gauge couplings due to higher dimensional operators in supersymmetric SU(5) grand unified theories. The corrections are, in general, param…
The Dynamics of Affleck-Dine Condensate Collapse
Kari Enqvist, John McDonald
In the MSSM, cosmological scalar field condensates formed along flat directions of the scalar potential (Affleck-Dine condensates) are typically unstable with respect to formation…
F-term Inflation in M-theory with Five-branes
S. M. Harun-or-Rashid, Tatsuo Kobayashi, Hitoshi Shimabukuro
We study F-term inflation in M-theory with and without five-brane moduli fields. We show the slow rolling condition is not satisfied in M-theory without five-brane moduli fields, b…
Chern-Simons Number Diffusion and Hard Thermal Loops on the Lattice
D. Bodeker, Guy D. Moore, K. Rummukainen
We develop a discrete lattice implementation of the hard thermal loop effective action by the method of added auxiliary fields. We use the resulting model to measure the sphaleron…
On chaoticity of the amplification of the neutrino asymmetry in the early universe
Kari Enqvist, Kimmo Kainulainen, Antti Sorri
We consider numerically the growth of neutrino asymmetry in active-sterile neutrino oscillations in the early universe. It is shown that the final sign of the asymmetry can be high…