Solving the ultra-nonlocality problem in time-dependent spin-density functional theory
Abstract
It has been known for some time that the exchange-correlation potential in time-dependent density functional theory is an ``ultranonlocal" functional of the density. A much more severe nonlocality problem, with a completely different physical origin, plagues the exchange-correlation potentials in time-dependent spin-density functional theory. We show how the use of the spin current density as a basic variable solves this problem, and provide explicit expressions for the exchange-correlation fields as functionals of the spin currents.
- Publication:
-
APS March Meeting Abstracts
- Pub Date:
- March 2003
- Bibcode:
- 2003APS..MARP31003Q