Case studies of atomic properties using coupled-cluster and unitary coupled-cluster methods

Details Case studies of atomic properties using coupled-cluster and unitary coupled-cluster methods Case studies of atomic properties using coupled-cluster and unitary coupled-cluster methods

2005-04-13

arxiv.org/abs/physics/0504087v2

Physics

Atomic Physics

Latex2e, 9 pages, 1 EPS figure

Scientific paper

The magnetic dipole and electric quadrupole hyperfine constants of Aluminium ($^{27}Al$) atom are computed using the relativistic coupled cluster (CC) and unitary coupled cluster (UCC) methods. Effects of electron correlations are investigated using different levels of CC approximations and truncation schemes. The ionization potentials, excitation energies, transition probabilities, oscillator strengths and nuclear quadrupole moment are computed to assess the accuracy of these schemes. The nuclear quadrupole moment obtained from the present CC and UCC calculations in the singles and doubles approximations are 142.5 mbarn and 141.5 mbarn respectively. The discrepancies between our calculated IPs and EEs and their measured values are better than 0.3%. The other one-electron properties reported here are also in excellent agreement with the measurements.

Affiliated with

Also associated with

No associations

Rating

Case studies of atomic properties using coupled-cluster and unitary coupled-cluster methods does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Case studies of atomic properties using coupled-cluster and unitary coupled-cluster methods, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Case studies of atomic properties using coupled-cluster and unitary coupled-cluster methods will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-249829