We suggest a non-iterative analytic method for constructing the exchange-correlation potential, , of any singlet ground-state two-electron system. The method is based on a convenient formula for in terms of quantities determined only by the system’s electronic wave function, exact or approximate, and is essentially different from the Kohn–Sham inversion technique. When applied to Gaussian-basis-set wave functions, the method yields finite-basis-set approximations to the corresponding basis-set-limit , whereas the Kohn–Sham inversion produces physically inappropriate (oscillatory and divergent) potentials. The effectiveness of the procedure is demonstrated by computing accurate exchange-correlation potentials of several two-electron systems (helium isoelectronic series, H2, ) using common ab initio methods and Gaussian basis sets.
Skip Nav Destination
Exact exchange-correlation potentials of singlet two-electron systems
Article navigation
28 October 2017
Research Article|
October 31 2017
Exact exchange-correlation potentials of singlet two-electron systems
Special Collection:
JCP Editors' Choice 2017
Ilya G. Ryabinkin
;
Ilya G. Ryabinkin
1
Department of Physical and Environmental Sciences, University of Toronto Scarborough
, Toronto, Ontario M1C 1A4, Canada
Search for other works by this author on:
Egor Ospadov;
Egor Ospadov
2
Department of Chemistry, The University of Western Ontario
, London, Ontario N6A 5B7, Canada
Search for other works by this author on:
Viktor N. Staroverov
Viktor N. Staroverov
a)
2
Department of Chemistry, The University of Western Ontario
, London, Ontario N6A 5B7, Canada
Search for other works by this author on:
a)
Electronic mail: vstarove@uwo.ca
J. Chem. Phys. 147, 164117 (2017)
Article history
Received:
September 07 2017
Accepted:
October 13 2017
Citation
Ilya G. Ryabinkin, Egor Ospadov, Viktor N. Staroverov; Exact exchange-correlation potentials of singlet two-electron systems. J. Chem. Phys. 28 October 2017; 147 (16): 164117. https://doi.org/10.1063/1.5003825
Download citation file:
Sign in
Don't already have an account? Register
Sign In
You could not be signed in. Please check your credentials and make sure you have an active account and try again.
Sign in via your Institution
Sign in via your InstitutionPay-Per-View Access
$40.00