61,500 research outputs found
Nonlinear Stochastic Dynamics of Complex Systems, II: Potential of Entropic Force in Markov Systems with Nonequilibrium Steady State, Generalized Gibbs Function and Criticality
In this paper we revisit the notion of the "minus logarithm of stationary
probability" as a generalized potential in nonequilibrium systems and attempt
to illustrate its central role in an axiomatic approach to stochastic
nonequilibrium thermodynamics of complex systems. It is demonstrated that this
quantity arises naturally through both monotonicity results of Markov processes
and as the rate function when a stochastic process approaches a deterministic
limit. We then undertake a more detailed mathematical analysis of the
consequences of this quantity, culminating in a necessary and sufficient
condition for the criticality of stochastic systems. This condition is then
discussed in the context of recent results about criticality in biological
systemsComment: 28 page
Application of conformal mapping to diffraction and scattering problems
Integral equation method based on conformal mapping applied to scattering and diffraction problems of plane waves by infinite cylinder with arbitrary cross sectio
Scientific publications of the bioscience programs division. Volume 5 - Planetary quarantine
Bibliography and indexes on planetary quarantin
Scientific publications of the Bioscience Program Division. Volume II - Environmental biology
Environmental biology bibliography, including citations on biochemistry, radiobiology, and bioinstrumentatio
Thermal Right-Handed Sneutrino Dark Matter
We discuss the relic abundance of the right-handed sneutrinos in the
supersymmetric F_D-term model of hybrid inflation. As well as providing a
natural solution to the mu- and gravitino overabundance problems, the model
offers the lightest right-handed sneutrino as a candidate for thermal dark
matter. The F_D-term model predicts a new quartic coupling of purely
right-handed sneutrinos to the Higgs doublets that thermalizes the sneutrinos
and makes them annihilate sufficiently fast to a level compatible with the
current cosmic microwave background data. We discuss this scenario and identify
favourable regions of the parameter space within mSUGRA.Comment: Submitted for the SUSY08 proceedings, 3 pages, LaTeX, 2 eps figure
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