메뉴 건너뛰기




Volumn 7, Issue 5, 2011, Pages 1428-1442

Vibrational energy levels via finite-basis calculations using a quasi-analytic form of the kinetic energy

Author keywords

[No Author keywords available]

Indexed keywords


EID: 79955911372     PISSN: 15499618     EISSN: 15499626     Source Type: Journal    
DOI: 10.1021/ct100711u     Document Type: Article
Times cited : (21)

References (174)
  • 106
    • 79955921003 scopus 로고    scopus 로고
    • The ladder operator formalism used here does not correspond to a complete second quantization formalism for creation and annihilation operators. Concepts and premises, as for example, vacuum and creation/annihilation of normal modes are not defined.
    • The ladder operator formalism used here does not correspond to a complete second quantization formalism for creation and annihilation operators. Concepts and premises, as for example, vacuum and creation/annihilation of normal modes are not defined.
  • 107
    • 79955925457 scopus 로고    scopus 로고
    • The contributions from the potential (V ̂) and pseudopotential (U ̂) could be integrated jointly numerically or analytically, which would lead to a small reduction of the computational cost. However, the main purpose of this study is to analyze the magnitude of each contribution independently and to point out the advantages of the quasi-analytic calculation of KEO expressed as a Taylor expansion around the equilibrium configuration.
    • The contributions from the potential (V ̂) and pseudopotential (U ̂) could be integrated jointly numerically or analytically, which would lead to a small reduction of the computational cost. However, the main purpose of this study is to analyze the magnitude of each contribution independently and to point out the advantages of the quasi-analytic calculation of KEO expressed as a Taylor expansion around the equilibrium configuration.
  • 108
    • 53149091252 scopus 로고
    • In;, Ed.; Elsevier: Amsterdam, The Netherlands,; Vol., p.
    • Nemes, L. In Vibrational Spectra and Structure; During, J. R., Ed.; Elsevier: Amsterdam, The Netherlands, 1981; Vol. 10, p 395.
    • (1981) Vibrational Spectra and Structure , vol.10 , pp. 395
    • Nemes, L.1    During, J.R.2
  • 113
    • 79955887759 scopus 로고    scopus 로고
    • The most efficient way for the reorthogonalization of a Hermitian matrix was found to be a formulation of the modified Gram-Schmidt method, which heavily involves highly optimized BLAS and LAPACK routines (see). A complete Cholesky decomposition of the overlap matrix of the complete set of Lanczos vectors is performed, and the Lanczos vectors are then multiplied in place with the inverse triangular matrix resulting from the Cholesky procedure.
    • The most efficient way for the reorthogonalization of a Hermitian matrix was found to be a formulation of the modified Gram-Schmidt method, which heavily involves highly optimized BLAS and LAPACK routines (see http://www.netlib.org/ lapack/). A complete Cholesky decomposition of the overlap matrix of the complete set of Lanczos vectors is performed, and the Lanczos vectors are then multiplied in place with the inverse triangular matrix resulting from the Cholesky procedure.
  • 117
    • 79955927000 scopus 로고    scopus 로고
    • DEWE stands for discrete variable representation (D) of the Eckart-Watson (EW) Hamiltonian with exact inclusion of an arbitrary potential energy function (E).
    • DEWE stands for discrete variable representation (D) of the Eckart-Watson (EW) Hamiltonian with exact inclusion of an arbitrary potential energy function (E).
  • 120
    • 79955882579 scopus 로고    scopus 로고
    • note
    • α B e α, which contributes to the zero-point energy of nonlinear polyatomic molecules.
  • 123
    • 78649696297 scopus 로고    scopus 로고
    • In the case of numerical approaches this problem is addressed in different ways, see for example ref 40 and also
    • In the case of numerical approaches this problem is addressed in different ways, see for example ref 40 and also: Scivetti, I.; Kohanoff, J.; Gidopoulos, N. I. Int. J. Quantum Chem. 2011, 111, 307
    • (2011) Int. J. Quantum Chem. , vol.111 , pp. 307
    • Scivetti, I.1    Kohanoff, J.2    Gidopoulos, N.I.3
  • 141
    • 79955905506 scopus 로고    scopus 로고
    • -1; (fc) stands for "frozen core", i.e., that only the valence electrons were correlated in the post Hartree-Fock treatment.
    • -1; (fc) stands for "frozen core", i.e., that only the valence electrons were correlated in the post Hartree-Fock treatment.
  • 142
    • 79955887758 scopus 로고    scopus 로고
    • 2 and HFCO, respectively.
    • 2 and HFCO, respectively.
  • 173
    • 79955911631 scopus 로고    scopus 로고
    • note
    • -1.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.