K. V. P. Latha

Probing CP violation with the electric dipole moment of atomic mercury.

The electric dipole moment of atomic 199Hg induced by the nuclear Schiff moment and the tensor-pseudotensor electron-nucleus interactions are calculated. For this, we develop and employ a novel method based on the relativistic coupled-cluster theory. The results of our theoretical calculations, combined with the latest experimental result of the 199Hg electric dipole moment, provide new bounds on the T reversal or CP violation parameters thetaQCD, the tensor-pseudotensor coupling constant CT, and (tilde d(u)-tilde d(d)). This is the most accurate calculation of these parameters to date. We highlight the crucial role of electron correlation effects in their interplay with the P, T violating interactions. Our results demonstrate substantial changes in the results of earlier calculations of these parameters which can be attributed to the more accurate inclusion of important correlation effects.

RELATIVISTIC AND CORRELATION EFFECTS IN ATOMS

This review article deals with some case studies of relativistic and correlation effects in atomic systems. After a brief introduction to relativistic many-electron theory, a number of applications ranging from correlation energy to parity non-conservation in atoms are considered. There is a special emphasis on relativistic coupled-cluster theory as most of the results presented here are based on it.

Core polarization in coupled-cluster theory induced by a parity and time-reversal violating interaction

The effects of parity and time reversal violating potential, in particular the tensor-pseudotensor electron nucleus interaction are studied. We establish that selected terms representing the interplay of these effects and the residual Coulomb interaction in the coupled-cluster method are equivalent to the coupled perturbed Hartree-Fock. We have shown that the {\em normal} CPHF diagrams have a one-one correspondance in the coupled-cluster theory, but the CPHF pseudo diagrams are present in a subtle way. We have studied the {\em pseudo} diagrams in great detail and have shown explicitly their origin in coupled-cluster theory. This is demonstrated by considering the case of the permanent electric dipole moment of atomic Hg and our results are compared with the results of an earlier calculation.

A new formulation of the relativistic many-body theory of electric dipole moments of closed shell atoms

The electric dipole moments of closed-shell atoms are sensitive to the parity and time-reversal violating phenomena in the nucleus. The nuclear Schiff moment is one such property, it arises from the parity and time reversal violating quark-quark interactions and the quark-chromo electric dipole moments. We calculate the electric dipole moment of atomic

Electric quadrupole moment of the 5 d D 3 ∕ 2 2 state in Yb + 171 : A relativistic coupled-cluster analysis

^{199}{\rm Hg}

Optical frequency standard with Sr+: A theoretical many-body approach

arising from the nuclear Schiff moment using the relativistic coupled-cluster theory. This is the most accurate calculation of the quantity to date. Our calculations in combination with the experiment data provide important insights to the P and T violating coupling constants at the elementary particle level. In addition, a new limit on the tensor-pseudo tensor induced atomic EDM, calculated using the relativistic coupled-cluster theory is also presented.

Electric Quadrupole Moments of the D States of Alkaline-Earth-Metal Ions

The electric quadrupole moment for the

Erratum: ProbingCPViolation with the Electric Dipole Moment of Atomic Mercury [Phys. Rev. Lett.103, 083001 (2009)]

5d\phantom{\rule{0.2em}{0ex}}^{2}D_{3∕2}

Publisher's Note: Probing CP Violation with the Electric Dipole Moment of Atomic Mercury

state of

Publisher's Note: Probing CP Violation with the Electric Dipole Moment of Atomic Mercury [Phys. Rev. Lett. 103, 083001 (2009)]

^{171}\mathrm{Yb}^{+}