For nearly a century, the magnetic anomaly of the fundamental particle known as a muon has served as a means to test theories ...

The reason is that many physicists believe that electrons have a permanent electric dipole moment. An electric dipole moment is usually created when positive and negative charges are spatially ...

Forbes contributors publish independent expert analyses and insights. I write about physics, science, academia, and pop culture. Most of the coverage of this adopts the framing of talking about ...

But how do you make a comparison between different magnets? One way is to determine the magnetic dipole moment of the magnet. Maybe you aren't quite sure about dipoles, but let me go ahead and say ...

Incompatible moments A spinning charge (left) acts like a loop of current to produce a magnetic dipole moment (blue arrow). Distorting the electron's charge distribution (middle) produces an electric ...

Monitoring precession: The researchers measured the electron electric dipole moment in hafnium fluoride ions confined within an ion trap. (Courtesy: Casey Cass/University of Colorado) One way to look ...

The result came from a search for the so-called electric dipole moment in the electron. A familiar example of a dipole is a bar magnet, which is shaped like a dumbbell with a north and a south pole.

And such a dipole will defy T-symmetry. The dipole has a strength, called the dipole moment, depending on how off-centre the electron’s charge is. “If time were reversed, [an electron’s spin ...

A combined team of physicists from Harvard University and Northwestern University has found the most precise value yet for the magnetic moment of an electron. In their paper published in the ...