EDM Operator Free from Schiff's Theorem
EDM Operator Free from Schiff's Theorem
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EDM 运算符不受希夫定理的影响
DOI：
10.1143/ptp.106.1223
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发表时间：
2000
影响因子：
--
通讯作者：
M. Hiramoto
中科院分区：
文献类型：
--
作者：
T. Asaga;T. Fujita;M. Hiramoto
本文推广了量子场论中的Schiff电偶极矩变换。在幺正变换下，违反时间和宇称的相互作用i ge 2 <$σµνγ5 <$F µν被变换成一种新的形式，但它的非相对论性约化有一种独特的形式，这一形式不适用于希夫定理。对新的EDM算符的相对论修正稍微增加了EDM，如b2（αZ）2和b2 2所示。由此可见，用非相对论性Hartree-Fock波函数计算EDM，对原子中EDM的增强因子给出了保守而可靠的估计。
We present a generalization of Schiff’s transformation of electric dipole moments (EDM) in quantum field theory. Under the unitary transformation, the time and parity violating interaction i ge 2 ¯ ψσµνγ5ψF µν is transformed into a new form, but its nonrelativistic reduction has a unique form to which Schiff’s theorem does not apply. The relativistic corrections to the new EDM operator slightly increase the EDM, as given by b2(αZ) 2 with b2 2. It is thus seen that the calculation of the EDM with nonrelativistic Hartree-Fock wave functions presents a conservative but reliable estimation for the enhancement factor of the EDM in atoms.