4
$\begingroup$

This is not a question, let's list down all the effects resulting from breaking or preserving of various discrete symmetries, on various observables, be it in condensed matter or in high energy. Please discuss the subtleties, if there are any.

Some examples would be:

  1. The off-diagonal elements of conductivity are finite if T-symmetry is broken, otherwise it's zero.
  2. Breaking chiral symmetry gives rise to mass (apart from Higg's mechanism).
  3. Breaking inversion symmetry gives rise to Rashba (spin-orbit coupling) effect.
$\endgroup$

1 Answer 1

1
$\begingroup$

Existence of an intrinsic electric dipole moment (EDM) for fundamental particles (or even for atoms and molecules) requires breaking parity and time reversal symmetry.

CP violating terms in the standard model are thought to give the electron and other particles tiny EDMs. BSM physics often predicts larger EDMs, and so EDM measurements can be very sensitive probes of new physics.

[See "CP violation without strangeness : electric dipole moments of particles, atoms, and molecules" by Iosif B. Khriplovich & Steve K. Lamoreaux.]

$\endgroup$

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge that you have read and understand our privacy policy and code of conduct.

Not the answer you're looking for? Browse other questions tagged or ask your own question.