• Full configuration interaction (or full CI) is a linear variational approach which provides numerically exact solutions (within the infinitely flexible...
    5 KB (513 words) - 22:26, 30 May 2025
  • Configuration interaction (CI) is a post-Hartree–Fock linear variational method for solving the nonrelativistic Schrödinger equation within the Born–Oppenheimer...
    6 KB (844 words) - 13:36, 5 June 2025
  • Thumbnail for Electron configuration
    In atomic physics and quantum chemistry, the electron configuration is the distribution of electrons of an atom or molecule (or other physical structure)...
    60 KB (6,208 words) - 21:30, 15 June 2025
  • cluster, many-body perturbation theory (to any order), and full configuration interaction (FCI) are size-extensive but not always size-consistent. For...
    4 KB (503 words) - 21:12, 10 September 2024
  • Thumbnail for MOLPRO
    algorithms with determinant-based full CI codes, and additional, more general, unitary group configuration interaction (CI) codes. This resulted in the...
    10 KB (932 words) - 20:35, 25 May 2025
  • Index, in geology Force Concept Inventory, in physics education Full configuration interaction, in chemistry Functional Capacity Index, in medicine Farm Cove...
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  • allows one to estimate the value of the full configuration interaction energy from a limited configuration interaction expansion result, although more precisely...
    5 KB (600 words) - 20:33, 14 March 2023
  • Quadratic configuration interaction (QCI) is an extension of configuration interaction that corrects for size-consistency errors in single and double excitation...
    3 KB (341 words) - 01:33, 1 October 2024
  • initialized in a state, which has a nonzero overlap with the Full Configuration Interaction (FCI) target eigenstate of the system. This state | ψ ⟩ {\displaystyle...
    29 KB (3,376 words) - 07:03, 25 May 2025
  • Thumbnail for Ali Alavi
    "Communications: Survival of the fittest: Accelerating convergence in full configuration-interaction quantum Monte Carlo". The Journal of Chemical Physics. 132 (4):...
    9 KB (709 words) - 08:58, 25 December 2024
  • Thumbnail for Ionic bonding
    atoms with sharply different electronegativities, and is the primary interaction occurring in ionic compounds. It is one of the main types of bonding...
    18 KB (2,340 words) - 19:04, 15 June 2025
  • the price of added computational cost. Configuration interaction (CI) Coupled cluster (CC) Multi-configuration time-dependent Hartree (MCTDH,) Møller–Plesset...
    9 KB (988 words) - 12:01, 3 July 2025
  • discussed also as intermolecular forces. Ionic interactions involve the attraction of ions or molecules with full permanent charges of opposite signs. For example...
    27 KB (3,311 words) - 09:42, 25 May 2025
  • rovibrational wave-functions (in normal mode and internal coordinates) Full configuration interaction with Slater determinants (benchmark studies) convergence of...
    8 KB (472 words) - 23:06, 19 May 2024
  • In chemistry and physics, the exchange interaction is a quantum mechanical constraint on the states of indistinguishable particles. While sometimes called...
    27 KB (3,678 words) - 15:38, 19 July 2025
  • including: configuration interaction (CI) One of the most important methods for correcting for the missing correlation is the configuration interaction (CI)...
    12 KB (1,544 words) - 02:34, 2 June 2025
  • correctly predict the dissociation of molecules. When MOT includes configuration interaction (MO-CI), this allows the relative contributions of the covalent...
    20 KB (2,715 words) - 19:48, 23 June 2025
  • longitudinal spin-summed total position-spread (Λ∥) computed at full configuration interaction level for the H2 diatomic molecule. The Λ∥ in the high repulsive...
    13 KB (2,031 words) - 20:36, 3 July 2023
  • Thumbnail for Cyclohexane conformation
    equatorial substituent has no 1,3 diaxial interaction that causes steric strain, it has a Gauche interaction in which an equatorial substituent repels...
    34 KB (4,231 words) - 19:54, 17 July 2025
  • deployment scheme in which installation requires no user interaction whatsoever. UDI deployments require full manual intervention to respond to every installation...
    8 KB (533 words) - 19:06, 10 March 2025
  • molecular orbitals, though other wave functions such as configuration interaction, multi-configurational self-consistent field, or Brueckner orbitals can also...
    28 KB (4,353 words) - 02:08, 11 December 2024
  • possible energy. This method can be considered a combination between configuration interaction (where the molecular orbitals are not varied but the expansion...
    8 KB (1,120 words) - 01:27, 1 October 2024
  • Thumbnail for Hund's rules
    that for full orbitals and suborbitals both the residual electrostatic energy (repulsion between electrons) and the spin–orbit interaction can only shift...
    12 KB (1,602 words) - 20:33, 21 May 2025
  • Thumbnail for Neanderthal extinction
    or parasite adaptations may give insight on this. Infectious illness interactions may express the prolonged period of stagnation before the modification...
    50 KB (5,599 words) - 10:41, 25 July 2025
  • group-IIIA–group-VA heteronuclear diatomics: BN, BP, AlN, and AlP from full configuration interaction calculations". The Journal of Chemical Physics. 125 (12): 124311...
    9 KB (788 words) - 08:35, 3 June 2025
  • Thumbnail for Genesis GV90
    rear-hinged coach doors that eliminate the need for a central B-pillar. This configuration aims to enhance ease of access while maintaining structural integrity...
    5 KB (388 words) - 15:34, 30 April 2025
  • Human–robot interaction (HRI) is the study of interactions between humans and robots. Human–robot interaction is a multidisciplinary field with contributions...
    56 KB (6,549 words) - 02:48, 30 June 2025
  • determinants—such as multi-configurational self-consistent field, configuration interaction, quadratic configuration interaction, and complete active space...
    31 KB (4,739 words) - 23:21, 4 July 2025
  • Thumbnail for Clopidogrel
    antiplatelet drug. This has the following configuration: Z configuration at the C3—C16 double bond, the original S configuration at C7, and, although the stereocentre...
    44 KB (3,686 words) - 16:17, 9 June 2025
  • properties of the elements can be explained on the basis of electronic configuration. Consider the behavior of ionization energies in the periodic table...
    14 KB (1,204 words) - 15:10, 18 May 2025