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The electron electric dipole moment de is an intrinsic property of an electron such that the potential energy is linearly related to the strength of the electric field:
The electron's EDM must be collinear with the direction of the electron's magnetic moment. Within the Standard Model of elementary particle physics, such a dipole is predicted to be non-zero but very small, at most 10 e⋅cm, where e stands for the elementary charge. The discovery of a substantially larger electron electric dipole moment would imply a violation of both parity invariance and time reversal invariance.
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