Physics – Atomic Physics
Scientific paper
2005-11-24
Physics
Atomic Physics
12 pages, 7 pictures - accepted in JTCC- Proceedings of the APCTCC2 conference held at Bankok, Thailand
Scientific paper
The connections between the Random Phase Approximation (RPA) and Many-Body Perturbation Theory (MBPT) and its all order generalisation, the Coupled- Cluster Theory (CCT) have been explored. Explicit expressions have been derived for the electric dipole amplitudes for allowed and forbidden transitions induced by the parity non-conserving neutral weak interaction. The Goldstone diagrams associated with the RPA terms in both cases are shown to arise in MBPT and CCT and the numerical verification of this relationship is made for the allowed electric dipole transitions.
Chaudhuri Rajat K.
Das Bhanu Pratap
Gopakumar Geetha
Hirao Kimihiko
Mukherjee Debashis
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