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74 518 (0,157s)

Result

SIZE-CONSISTENT BRILLOUIN-WIGNER PERTURBATION-THEORY WITH AN EXPONENTIALLY PARAMETRIZED WAVE-FUNCTION - BRILLOUIN-WIGNER COUPLED-CLUSTER THEORY

Using the Brillouin-Wigner perturbation theory we developed Brillouin-Wigner based coupled cluster theory.

CF - Fyzikální chemie a teoretická chemie

  • 1994
  • Jx
Result

Single-root multireference Brillouin-Wigner coupled-cluster theory. Rotational barrier of the ethylene molecule

Recently developed single-root multireference Brillouin-Wigner coupled cluster (MR BWCC) theory is applied to study the rotational barrier of the ethylene molecule. The method belongs to a broad family of state-selective

CF - Fyzikální chemie a teoretická chemie

  • 1998
  • Jx
Result

Size-extensivity Correction for the State-specific Multireference Brillouin-Wigner Coupled-cluster Theory.

We present a simple a posteriori correction for the state-specific multireference Brillouin-Wigner coupled-cluster theory, which eliminates its size-extensivity error....

CF - Fyzikální chemie a teoretická chemie

  • 2000
  • Jx
Result

Continuous Transition between Brillouin-Wigner and Rayleigh-Schrödinger Perturbation Theory, Generalized Bloch Equation, and Hilbert Space Multireference Coupled Cluster.

coupled cluster theory and used to investigate relationships between several versions of multireference coupled cluster methods. Finally based on those continuous transitions, new size extensivity correct...

CF - Fyzikální chemie a teoretická chemie

  • 2003
  • Jx
Result

On the generalized multi-reference Brillouin-Wigner coupled cluster theory

The generalized multireference Brillouin-Wigner coupled cluster theory is presented for the case of a single root function. The Bloch-like equation and the Lippmann-Schwinger-like equation for the generalized multireference...

BE - Teoretická fyzika

  • 2001
  • Jx
Result

Method of moments for the continuous transition between the Brillouin-Wigner-type and Rayleigh-Schroumldinger-type multireference coupled cluster theories

We apply the method of moments to the multireference (MR) coupled cluster (CC and Rayleigh-Schroumldinger-type theories based on the Jeziorski-Monkhorst wave function of the SUMRCC theory to the general model space...

CF - Fyzikální chemie a teoretická chemie

  • 2009
  • Jx
Result

Brillouin-Wigner Perturbation Theory as a Possible More Effective Alternative to Many-Body Rayleigh-Schrödinger Perturbation Theory and Coupled Cluster Theory.

Annotation not available...

CF - Fyzikální chemie a teoretická chemie

  • 1995
  • Jx
Result

Multireference Coupled-cluster Calculations on the Energy of Activation in the Automerization of Cyclobutadiene: Assessment of the State-specific Multireference Brillouin-Wigner Theory.

We benchmarked the size-extensivity corrected state-specific multireference Brillouin-Wigner couple-cluster method on the energy of activation of the automerization of cyclobutadiene....

CF - Fyzikální chemie a teoretická chemie

  • 2000
  • Jx
Result

Multireference Brillouin-Wigner Coupled Cluster Singles and Doubles (MRBWCCSD) and Multireference Doubles Configuration Interaction (MRD-CI) Calculations for the Bergman Cyclization Reaction.

multireference Brillouin-Wigner coupled cluster singles and doubles method (MRBWCCSD calculated. We find good agreement between experiment and theory at the MRCI+Q/CCSD(T)level of theory, provided a sufficiently l...

CF - Fyzikální chemie a teoretická chemie

  • 2003
  • Jx
Result

Single-Root Multireference Brillouin-Wigner Coupled-Cluster Theory. Rotational Barrier of the Ethylene Molecule

BG - Jaderná, atomová a molekulová fyzika, urychlovače

  • 1998
  • Jx
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