منابع مشابه
Dark Energy, Hyperbolic Cosecant Cardassian and Virial Collapse for Power-style Cardassian
The problem of dark energy(DE) is the greatest challenge for modern physics, and therefore this thesis is dedicated to the modeling establishment of DE. In the first chapter, qualitative and descriptive methods are employed to draw a rough map for the cosmos in its finely analyzed era. Then the dynamical equations of cosmology based on the general relativity are introduced, together with the me...
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HF level of ab initio calculations with basis-set 6-31G including full counterpoise correction hasbeen applied to compute the AspHis potential with the Ser and HisSer potential with the Asp inAspHisSer trimer. The potential energy surface has a minimum of -16.765 kcal/mol in R1=1.912nm and R2=2.719 nm. The optimum computed curves for two interactions were fitted withintermolecular pair potentia...
متن کاملExchange-Correlation Energy Density from Virial Theorem
The virial of the exchange potential in density functional theory yields the exchange energy, but the virial of the correlation potential does not yield the correlation energy. Via the adiabatic connection formula, we define a hypercorrelated potential whose virial is exactly the correlation energy. This exchange-correlation energy density is uniquely determined by the exchange-correlation ener...
متن کاملPath-integral virial estimator for reaction-rate calculation based on the quantum instanton approximation.
The quantum instanton approximation is a type of quantum transition-state theory that calculates the chemical reaction rate using the reactive flux correlation function and its low-order derivatives at time zero. Here we present several path-integral estimators for the latter quantities, which characterize the initial decay profile of the flux correlation function. As with the internal energy o...
متن کاملDark Matter and Dark Energy
I briefly review our current understanding of dark matter and dark energy. The first part of this paper focusses on issues pertaining to dark matter including observational evidence for its existence, current constraints and the ‘abundance of substructure’ and ‘cuspy core’ issues which arise in CDM. I also briefly describe MOND. The second part of this review focusses on dark energy. In this pa...
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ژورنال
عنوان ژورنال: Gravitation and Cosmology
سال: 2012
ISSN: 0202-2893,1995-0721
DOI: 10.1134/s0202289312010070