Classical-map hypernetted-chain method: Difference between revisions

Revision as of 17:35, 17 January 2006

Revision as of 17:37, 17 January 2006

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'''CHNC''' is used as the acronym for a method in many-body theoretical physics known as the '''C'''lassical-'''M'''ap '''H'''yper-'''N'''etted-'''C'''hain technique. It has been applied to interacting uniform [[electron liquid]]s in two and three dimensions, and to interacting [[hydrogen plasmas]].

In this method, the pair-distributions of the interacting particles are calculated using a mapping which ensures that the quantum mechanically correct non-interacting pair distribution functiomfunction is recovered when the Coulomb interactions are switched off. The value of the method lies in its ability to calculate the ''interacting'' pair distribution functions ''g(r)'' at zero and finite temperatures. Comparison of the calculated ''g(r)'' with results from Quantum Monte Carlo show remarkable agreement, even for very strongly correlated systems.

The interacting pair-distribution functions obtained from CHNC have been used to calculate the exchange-correlation energies, Landau parameters and other quantities of interest in many-body physics and [[density functional theory]].

See also [[Hyper-netted-Chain Equation

]]

== Selected References. ==

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N. Q. Khanh and H. Totsuji,

Solid State Com., vol.129, page 37 (2004)

M. W. C. Dharma-wardana,

Physical Review B, volume72, page 125339 (2005)