Exact time-dependent density-functional potentials for strongly correlated tunneling electrons

TY - JOUR

T1 - Exact time-dependent density-functional potentials for strongly correlated tunneling electrons

AU - Hodgson, M.J.P.

AU - Ramsden, J.D.

AU - Chapman, Jacob B.J.

AU - Lillystone, P.

AU - Godby, R.W.

N1 - (Rapid Communication)

PY - 2013/12/2

Y1 - 2013/12/2

N2 - By propagating the many-body Schrödinger equation, we determine the exact time-dependent Kohn-Sham potential for a system of strongly correlated electrons which undergo field-induced tunneling. Numerous features are entirely absent from the approximations commonly used in time-dependent density-functional theory. The self-interaction correction is strong and time dependent, owing to electron localization, and prominent dynamic spatial potential steps arise from minima in the charge density, as modified by the Coulomb interaction experienced by the partially tunneled electron.

AB - By propagating the many-body Schrödinger equation, we determine the exact time-dependent Kohn-Sham potential for a system of strongly correlated electrons which undergo field-induced tunneling. Numerous features are entirely absent from the approximations commonly used in time-dependent density-functional theory. The self-interaction correction is strong and time dependent, owing to electron localization, and prominent dynamic spatial potential steps arise from minima in the charge density, as modified by the Coulomb interaction experienced by the partially tunneled electron.

UR - http://www.scopus.com/inward/record.url?scp=84890736163&partnerID=8YFLogxK

U2 - 10.1103/PhysRevB.88.241102

DO - 10.1103/PhysRevB.88.241102

M3 - Article

AN - SCOPUS:84890736163

SN - 1098-0121

VL - 88

JO - Physical Review B: Condensed Matter and Materials Physics

JF - Physical Review B: Condensed Matter and Materials Physics

IS - 24

M1 - 241102

ER -