Density-functional theory for time-dependent systems
- 1 January 1987
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review A
- Vol. 35 (1) , 442-444
- https://doi.org/10.1103/physreva.35.442
Abstract
The time-dependent density-functional theory of Runge and Gross [Phys. Rev. Lett. 52, 997 (1984)] is reexamined on the basis of its limitations, and the criticisms raised by Xu and Rajagopal [Phys. Rev. A 31, 2682 (1985)] are addressed, within the imposition of natural boundary conditions of vanishing density and potential at infinity. Also, for a single-particle system characterized by an arbitrary time-dependent potential, the uniqueness of the density-to-potential mapping is established explicitly for both bound and scattering states.Keywords
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