Higher Derivative Dark Energy. Mingzhe Li Department of Physics, Nanjing University May 22, 2012 IHEP Beijing. Outline. Dark energy models: classified by w Quintom dark energy model building: difficulties Single scalar field model: higher derivatives

ByNumerical Analysis of Processes. NAP 2. Physical models (transport equations, energy and entropy principles). Empirical models (neural networks and regression models). Models that use analytical solutions (diffusion).

ByTowards a Universal Energy Density Functional Study of Odd-Mass Nuclei in EDF Theory. N. Schunck University of Tennessee, 401 Nielsen Physics , Knoxville, TN-37996, USA Oak Ridge National Laboratory, Bldg. 6025, MS6373, P.O. Box 2008, Oak Ridge, TN-37831, USA Together with:

ByAtomic Physics. Chapter 29. Lecture 24. All nature, then, as self-sustained, consists Of twain of things: of bodies and of void In which they're set, and where they're moved around. …. This ultimate stock we have devised to name Procreant atoms, matter, seeds of things,

ByFrom PDEs to Information Science and Back. Russel Caflisch IPAM Mathematics Department, UCLA. Collaborators & Support. UCLA Stan Osher Hayden Schaeffer Oak Ridge National Labs Cory Hauck. Themes.

ByVariational Principles and Lagrange’s Equations. Joseph Louis Lagrange/ Giuseppe Luigi Lagrangia (1736 – 1813). Definitions Lagrangian density : Lagrangian : Action : How to find the special value for action corresponding to observable ?. Pierre-Louis Moreau

ByVariational Principles and Lagrange’s Equations. Joseph Louis Lagrange/ Giuseppe Luigi Lagrangia (1736 – 1813). Definitions Lagrangian density : Lagrangian : Action : How to find the special value for action corresponding to observable ?. Pierre-Louis Moreau

ByThe Nuts and Bolts of First-Principles Simulation. 3 : Density Functional Theory. CASTEP Developers’ Group with support from the ESF k Network. Density functional theory Mike Gillan, University College London. Ground-state energetics of electrons in condensed matter

ByDiscrete Variational Mechanics. Benjamin Stephens J.E. Marsden and M. West, “Discrete mechanics and variational integrators,” Acta Numerica, No. 10, pp. 357-514, 2001 M. West “Variational Integrators,” PhD Thesis, Caltech, 2004. About My Research. Humanoid balance using simple models

ByAsteroseismic helium abundance determination. G ü nter Houdek. Leiden 8 June 2004. Outline. Motivation. Variational principle. Application to an inhomogeneous vibrating string. Application to solar-type stars. Further improvements.

ByGenerator Coordinate Method (GCM). In molecules. In atomic nuclei. Variational principle leads to the Hill-Wheeler equation. Hamiltonian kernel. Norm kernel.

ByPhysics 452. Quantum mechanics II Winter 2011. Karine Chesnel. Phys 452. Homework. Thursday Feb 9 Assignment # 8: 7.1, 7.3, 7.4, 7.5. Phys 452. ???. Schrödinger Equation… … very hard to solve!. Variational principle. Hamiltonian. Many particles. Phys 452. Ground state.

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