Brief review related to the foundations of time-dependent density functional theory
Brief review related to the foundations of time-dependent density functional theory
Faculty of Sciences. Physics

article

2010
2010

Physics

Theoretical chemistry accounts

125(2010)
:3/6
, p. 427-432

1432-881X

000273363300029

E

English (eng)

University of Antwerp

The electron density n(r,t), which is the central tool of time-dependent density functional theory, is presently considered to be derivable from a one-body time-dependent potential V(r,t), via one-electron wave functions satisfying a time-dependent Schrödinger equation. This is here related via a generalized equation of motion to a Dirac density matrix now involving t. Linear response theory is then surveyed, with a special emphasis on the question of causality with respect to the density dependence of the potential. Extraction of V(r,t) for solvable models is also proposed.

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