Phys. Rev. Lett. 82, 378–381 (1999)Several Theorems in Time-Dependent Density Functional TheorySee Also: Erratum Received 25 September 1998; published in the issue dated 11 January 1999 The time dependence of the exchange-correlation energy in density functional theory is given in terms of the exchange-correlation potential. The virial theorem for the exchange-correlation potential is shown to hold for time-dependent electronic systems and is illustrated by an exactly solved model: Hooke's atom with a time-dependent force constant. A relation between the coupling constant and functionals evaluated on scaled densities is derived. © 1999 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.82.378
DOI:
10.1103/PhysRevLett.82.378
PACS:
71.15.Mb, 31.15.Ew, 71.45.Gm
See AlsoErratum: Paul Hessler, Jang Park, and Kieron Burke, Erratum: Several Theorems in Time-Dependent Density Functional Theory [Phys. Rev. Lett. 82, 378 (1999)], Phys. Rev. Lett. 83, 5184 (1999). |
