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Toward ab initio de...
Toward ab initio density functional theory for nuclei
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Drut, J. E. (författare)
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Furnstahl, R. J. (författare)
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Platter, Lucas, 1976 (författare)
- 2010
- 2010
- Engelska.
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Ingår i: Progress in Particle and Nuclear Physics. - 0146-6410. ; 64:1, s. 120-168
- Relaterad länk:
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https://research.cha...
Abstract
Ämnesord
Stäng
- We survey approaches to non-relativistic density functional theory (DFT) for nuclei using progress toward ob initio DFT for Coulomb systems as a guide. Ab initio DFT starts with a microscopic Hamiltonian and is naturally formulated using orbital-based functionals, which generalize the conventional 'local density plus gradients' form. The orbitals satisfy single-particle equations with multiplicative (local) potentials. The DFT functionals can be developed starting from internucleon forces using wavefunction-based methods or by Legendre transform via effective actions. We describe known and unresolved issues for applying these formulations to the nuclear many-body problem and discuss how ab initio approaches can help improve empirical energy density functionals. (C) 2009 Elsevier B.V. All rights reserved.
Ämnesord
- NATURVETENSKAP -- Fysik -- Subatomär fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Subatomic Physics (hsv//eng)
Nyckelord
- ground-state energy
- matrix expansion
- density functional theory
- many-fermion system
- low-energy qcd
- low-momentum interactions
- effective-field theory
- many-body perturbation theory
- nuclear structure
- inhomogeneous electron-gas
- equation-of-state
- local composite-operators
- mean-field
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- ref (ämneskategori)
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