Comparison of the Brillouin-Wigner Coupled Cluster Theory with the Standard Coupled Cluster Theory. Cancellation of Disconnected Terms in the Brillouin-Wigner Coupled Cluster Theory

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Title:Comparison of the Brillouin-Wigner Coupled Cluster Theory with the Standard Coupled Cluster Theory. Cancellation of Disconnected Terms in the Brillouin-Wigner Coupled Cluster Theory
Creators:
Mášik, Jozef
Hubač, Ivan
Journal or Publication Title:
Collection of Czechoslovak Chemical Communications, 62, 6, pp. 829-842
Uncontrolled Keywords:Brillouin-Wigner perturbation theory, Size consistency, Coupled clusters, Linked cluster theorem

Abstract

In our article (Hubac I., Neogrady P.: Phys. Rev. A <i>50</i>, 4558 (1994)) we have developed size-extensive Brillouin-Wigner coupled cluster (BWCC) theory. We have shown that the BWCC theory is fully equivalent to the standard coupled cluster theory. However, the BWCC theory does not obey the so-called linked cluster theorem. In this article we discuss the cancellation of disconnected terms in the BWCC theory.

Title:Comparison of the Brillouin-Wigner Coupled Cluster Theory with the Standard Coupled Cluster Theory. Cancellation of Disconnected Terms in the Brillouin-Wigner Coupled Cluster Theory
Creators:
Mášik, Jozef
Hubač, Ivan
Uncontrolled Keywords:Brillouin-Wigner perturbation theory, Size consistency, Coupled clusters, Linked cluster theorem
Divisions:Life and Chemical Sciences > Institute of Organic Chemistry and Biochemistry > Collection of Czechoslovak Chemical Communications
Journal or Publication Title:Collection of Czechoslovak Chemical Communications
Volume:62
Number:6
Page Range:pp. 829-842
ISSN:0010-0765
E-ISSN:1212-6950
Publisher:Institute of Organic Chemistry and Biochemistry
Related URLs:
URLURL Type
http://dx.doi.org/10.1135/cccc19970829UNSPECIFIED
ID Code:1165
Item Type:Article
Deposited On:06 Feb 2009 17:07
Last Modified:06 Feb 2009 16:07

Citation

Mášik, Jozef; Hubač, Ivan (1997) Comparison of the Brillouin-Wigner Coupled Cluster Theory with the Standard Coupled Cluster Theory. Cancellation of Disconnected Terms in the Brillouin-Wigner Coupled Cluster Theory. Collection of Czechoslovak Chemical Communications, 62 (6). pp. 829-842. ISSN 0010-0765

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