An integral-direct implementation of linear and quadratic response functions for the hierarchy ccs, cc2, ccsd and cc3 of coupled cluster models

Objective

The aim of tne project is the development of an integral-direct programme for calculating frequency-dependent polarizabilities and
hyperpolarizabilities for the hierarchy CCS, CC2, CCSD, and CC3 of coupled cluster models. CC2 and CC3 are approximate coupled cluster models, designed with special emphasis on excitation energies and
frequency-dependent properties, recently developed in the group of Poul Joergensen.
It is intended to implement in these programmes the possibility to use atomic orbital basis sets that explicitly depend on the parameters of the electric fields. It is expected, that this approach will improve the convergence of polarizabilities with the basis set dimensions considerably. Combining the integral-direct technique with field-dependent orbitals, these methods can be expected to be applicable to molecules of potential interest for spectroscopical experiments and for the technology of optical devices.
With the hierarchy of coupled cluster models it will be possible to obtain accurate results with an predictable error range.

Programme(s)

• FP4-TMR - Specific research and technological development programme in the field of the training and mobility of researchers, 1994-1998

Topic(s)

• 0302 - Post-doctoral research training grants
• TC06 - Surface Science, Colloids & Heterogenous Catalysis

Call for proposal

Data not available

Funding Scheme

RGI - Research grants (individual fellowships)

Coordinator

UNIVERSITY OF AARHUS

Address

140,Langelandsgade 140
8000 Aarhus C
Denmark

 

Participants (1)

Not available

Germany