12,546 research outputs found
Stability of a two-sublattice spin-glass model
We study the stability of the replica-symmetric solution of a two-sublattice
infinite-range spin-glass model, which can describe the transition from
antiferromagnetic to spin glass state. The eigenvalues associated with
replica-symmetric perturbations are in general complex. The natural
generalization of the usual stability condition is to require the real part of
these eigenvalues to be positive. The necessary and sufficient conditions for
all the roots of the secular equation to have positive real parts is given by
the Hurwitz criterion. The generalized stability condition allows a consistent
analysis of the phase diagram within the replica-symmetric approximation.Comment: 21 pages, 5 figure
Valuation of Forest Resources in Watershed Areas: Selected Applications in Makiling Forest Reserve
The valuation of resources found in the watershed area is important in assessing the impacts of changes in the watershed. While the change will have positive impacts which are short-term in nature, there are long-term environmental damages associated with economic benefits. This paper gives a rational judgment on the soundness of such changes through cost and benefit analysis. The watershed approach is utilized to capture the effects that are relevant in the analysis.forestry sector, watershed, uplands
Valuation of Forest Resources in Watershed Areas: Selected Applications in Makiling Forest Reserve
The valuation of resources found in the watershed area is important in assessing the impacts of changes in the watershed. While the change will have positive impacts which are short-term in nature, there are long-term environmental damages associated with economic benefits. This paper gives a rational judgment on the soundness of such changes through cost and benefit analysis. The watershed approach is utilized to capture the effects that are relevant in the analysis.forestry sector, watershed, uplands
Similarity Renormalization Group Evolution of Chiral Effective Nucleon-Nucleon Potentials in the Subtracted Kernel Method Approach
Methods based on Wilson's renormalization group have been successfully
applied in the context of nuclear physics to analyze the scale dependence of
effective nucleon-nucleon () potentials, as well as to consistently
integrate out the high-momentum components of phenomenological high-precision
potentials in order to derive phase-shift equivalent softer forms, the so
called potentials. An alternative renormalization group approach
that has been applied in this context is the Similarity Renormalization Group
(SRG), which is based on a series of continuous unitary transformations that
evolve hamiltonians with a cutoff on energy differences. In this work we study
the SRG evolution of a leading order (LO) chiral effective potential in
the channel derived within the framework of the Subtracted Kernel
Method (SKM), a renormalization scheme based on a subtracted scattering
equation.Comment: Published versio
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