Relativistic Many-Body Theory of Electric Dipole Moment of Atoms Due to Parity and Time Reversal Violation

1989 ◽  
pp. 411-416 ◽  
Author(s):  
B. P. Das
Keyword(s):  
Dipole Moment ◽  
Electric Dipole Moment ◽  
Electric Dipole ◽  
Time Reversal ◽  
Many Body ◽  
Many Body Theory ◽  
Body Theory

scholarly journals The Role of Relativistic Many-Body Theory in Electron Electric Dipole Moment Searches Using Cold Molecules

Atoms ◽  
2019 ◽  
Vol 7 (2) ◽  
pp. 58
Author(s):  
V. S. Prasannaa ◽  
A. Sunaga ◽  
M. Abe ◽  
M. Hada ◽  
N. Shitara ◽  
...  
Keyword(s):  
Dipole Moment ◽  
Electric Dipole Moment ◽  
Electric Dipole ◽  
Cluster Method ◽  
Many Body ◽  
Many Body Theory ◽  
Cold Molecules ◽  
Electron Electric Dipole Moment ◽  
Body Theory

In this review article, we survey some of our results pertaining to the search for the electric dipole moment of the electron (eEDM), using heavy polar molecules. In particular, we focus on the relativistic coupled cluster method (RCCM) and its applications to eEDM searches in YbF, HgX (X = F, Cl, Br, and I), BaF, HgA (A = Li, Na, and K), and YbOH. Our results are presented in a systematic manner, by first introducing the eEDM and its measurement using molecules, the importance of relativistic many-body theory, and finally our results, followed by future prospects.

Many-body theory of the electric dipole moment of atomic ytterbium

2001 ◽  
Vol 34 (15) ◽  
pp. 3089-3106 ◽  
Author(s):  
Angom Dilip ◽  
Bhanu Pratap Das ◽  
Warren F Perger ◽  
M K Samal ◽  
K P Geetha
Keyword(s):  
Dipole Moment ◽  
Electric Dipole Moment ◽  
Electric Dipole ◽  
Many Body ◽  
Many Body Theory ◽  
Body Theory

β-decay and the electric dipole moment: searches for time-reversal violation in radioactive nuclei and atoms

2010 ◽  
Vol 844 (1-4) ◽  
pp. 143c-149c ◽  
Author(s):  
H.W. Wilschut ◽  
D.J. van der Hoek ◽  
K. Jungmann ◽  
W. Kruithof ◽  
C.J.G. Onderwater ◽  
...  
Keyword(s):  
Dipole Moment ◽  
Electric Dipole Moment ◽  
Electric Dipole ◽  
Time Reversal ◽  
Β Decay

scholarly journals Relativistic many-body analysis of the electric dipole moment ofRn223

2014 ◽  
Vol 90 (5) ◽  
Author(s):  
B. K. Sahoo ◽  
Yashpal Singh ◽  
B. P. Das
Keyword(s):  
Dipole Moment ◽  
Electric Dipole Moment ◽  
Electric Dipole ◽  
Many Body

scholarly journals Elementary quantum mechanics of the neutron with an electric dipole moment

2016 ◽  
Vol 113 (27) ◽  
pp. 7438-7442 ◽  
Author(s):  
Gordon Baym ◽  
D. H. Beck
Keyword(s):  
Dipole Moment ◽  
Electric Field ◽  
External Electric Field ◽  
Electric Dipole Moment ◽  
Electric Dipole ◽  
Time Reversal ◽  
Spin Operator ◽  
Spin Motion ◽  
Expectation Value ◽  
Electric Polarizability

The neutron, in addition to possibly having a permanent electric dipole moment as a consequence of violation of time-reversal invariance, develops an induced electric dipole moment in the presence of an external electric field. We present here a unified nonrelativistic description of these two phenomena, in which the dipole moment operator, D→, is not constrained to lie along the spin operator. Although the expectation value of D→ in the neutron is less than 10−13 of the neutron radius, rn, the expectation value of D→ 2 is of order rn2. We determine the spin motion in external electric and magnetic fields, as used in past and future searches for a permanent dipole moment, and show that the neutron electric polarizability, although entering the neutron energy in an external electric field, does not affect the spin motion. In a simple nonrelativistic model we show that the expectation value of the permanent dipole is, to lowest order, proportional to the product of the time-reversal-violating coupling strength and the electric polarizability of the neutron.

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