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Volumn 23, Issue 15, 2002, Pages 1430-1444

Integral algorithm and density matrix integration scheme for ab initio band structure calculations on polymeric systems

Author keywords

Crystal orbital; Integral calculation; Polymers

Indexed keywords

ALGORITHMS; BAND STRUCTURE; CALCULATIONS; COMPUTER SIMULATION; MACROMOLECULES; MOLECULAR DYNAMICS; MOLECULAR STRUCTURE; MOLECULAR VIBRATIONS;

EID: 0037202604     PISSN: 01928651     EISSN: None     Source Type: Journal    
DOI: 10.1002/jcc.10146     Document Type: Article
Times cited : (12)

References (72)
  • 10
  • 50
    • 0011509596 scopus 로고    scopus 로고
    • QTIP, Quantum Theoretical Integral Package; The QTIP library is based on the Abacus code of T. Helgaker
    • QTIP, Quantum Theoretical Integral Package, http://www.qtp.ufl.edu/~deumens/qtip.html. The QTIP library is based on the Abacus code of T. Helgaker.
  • 60
    • 0003860731 scopus 로고    scopus 로고
    • Waterloo Maple Inc.: Ontario
    • MAPLE V. Release 4, Waterloo Maple Inc.: Ontario, 1996.
    • (1996) MAPLE V. Release 4
  • 66
    • 0011512335 scopus 로고    scopus 로고
    • note
    • The zone inside which every interaction is computed exactly.
  • 67
    • 0011521904 scopus 로고    scopus 로고
    • note
    • A shell-quartet is a pair of shell-pairs. To compute all TEI, we have to consider all shell-quartets, that is, all possible pairs of shell-pairs. See ref. 43 for more details.
  • 68
    • 0011520285 scopus 로고    scopus 로고
    • note
    • Although the number of "exchange h̄" has to be taken into account prior to that.
  • 69
    • 0011427173 scopus 로고    scopus 로고
    • note
    • See ref. 22 for a complete description of our LR technique.
  • 70
    • 0011465296 scopus 로고    scopus 로고
    • note
    • 4, N times less than the number of exchange integrals. However, in practice, the number of significant packed Coulomb integrals is almost independent from N, except for very small N values.
  • 71
    • 0011436214 scopus 로고    scopus 로고
    • note
    • For exchange integrals in the semidirect procedure these times correspond to one SCF cycle.
  • 72
    • 0011425278 scopus 로고    scopus 로고
    • note
    • In ref. 29, we have performed calculations with N = 200, M = 400. Moreover, for the first time in band structure calculations, basis sets containing f orbitals have been used.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.