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.

Electric dipole moments (EDMs) are a crucial area of research in particle physics, particularly in the context of understanding the fundamental symmetries of nature. The study of EDMs is closely ...

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 ...

No new particles: artist’s impression of how virtual particles could give the electron an electric dipole moment. (Courtesy: Nicolle Fuller/NSF) It is well known that the electron has a magnetic ...

What's more, these insulators generate electric quadrupole or octupole ... made it possible to define the dipole moment of a crystal through a particular application of the Berry phase—a ...

Measuring zero: scientists have lowered the previous upper limit of the neutron’s electric dipole moment by 40%. (Courtesy: IOP Publishing) For more than 60 years, physicists have been searching for a ...

No, they don't. We can call the product of q and s the electric dipole moment. It would actually be a vector, but just don't worry about that for now. Using the same idea for a bar magnet ...

called the dipole moment, depending on how off-centre the electron’s charge is. “If time were reversed, [an electron’s spin] would flip and the [electric dipole moment] would not ...

A ferroelectric material is one whose equilbrium state has a bulk electric dipole moment. This occurs in solid ceramics when ground state crystal structure involves spatial separation of ionic charges ...

The most important parameter in this process is the "transition dipole moment," which is an electric dipole moment associated with the transition between the two states. Typically, the larger this ...