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Volumn 9, Issue 1, 2013, Pages 232-246

The GW-method for quantum chemistry applications: Theory and implementation

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EID: 84872142935     PISSN: 15499618     EISSN: 15499626     Source Type: Journal    
DOI: 10.1021/ct300648t     Document Type: Article
Times cited : (321)

References (97)
  • 39
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    • Ke, S. Phys. Rev. B 2011, 84, 205415
    • (2011) Phys. Rev. B , vol.84 , pp. 205415
    • Ke, S.1
  • 89
    • 84872128753 scopus 로고    scopus 로고
    • note
    • 0 refers to the Green's function of a strictly noninteracting reference system, i.e., also without mean-field interaction.
  • 90
    • 84872132074 scopus 로고    scopus 로고
    • note
    • For single-particle ground states (single Slater determinant) the pole positions and residues of the Green's function do not depend on z. By contrast, for ground states with more than a single Slater determinant, pole positions and residues in general do depend on z. The z -dependency takes into account that the spectral-function A (E) of interacting electron gases is not just a superposition of N Lorentzians. We add that G has a second spectral representation in terms of a sum over all the many-body states of the electron gas. In this representation the poles do not depend on z; the price to be paid for this simplification is that the number of poles appearing is not given by the number of particles, N, but by the much larger number of all many-body excitations.
  • 91
    • 84872154079 scopus 로고    scopus 로고
    • note
    • XC, see eq 25.
  • 92
    • 84872141617 scopus 로고    scopus 로고
    • The poles reside in the upper and the lower complex half planes. This representation is inherited from the fact that the constituting equations refer to causal Green's functions
    • The poles reside in the upper and the lower complex half planes. This representation is inherited from the fact that the constituting equations refer to causal Green's functions.
  • 93
    • 84872156858 scopus 로고    scopus 로고
    • For some of the smaller molecules values do exist at fully self-consistent GW -level.(38) Since however these form only a small subset we prefer to stick in our comparison to the experimental values as a reference
    • For some of the smaller molecules values do exist at fully self-consistent GW -level.(38) Since however these form only a small subset we prefer to stick in our comparison to the experimental values as a reference.
  • 94
    • 84872136422 scopus 로고    scopus 로고
    • 2 there however the trend is less obvious due to the limited amount of data points.)
    • 2; there however the trend is less obvious due to the limited amount of data points.)
  • 95
    • 84872136818 scopus 로고    scopus 로고
    • The only exception is SF4. Here even between TZVPP and QZVP the KS-energy levels change by more than 0.1 eV
    • The only exception is SF4. Here even between TZVPP and QZVP the KS-energy levels change by more than 0.1 eV.
  • 96
    • 84872141706 scopus 로고    scopus 로고
    • i
    • i.
  • 97
    • 84872124555 scopus 로고    scopus 로고
    • Both benzene and naphthalene were calculated using ″really tight Tier 2″ settings since the use of a Tier 3 basis set led in these cases to an overcomplete basis set
    • Both benzene and naphthalene were calculated using ″really tight Tier 2″ settings since the use of a Tier 3 basis set led in these cases to an overcomplete basis set.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.