What do we mean by broken symmetries when referring to superfluid he3 phases?

[nbd2010]

What do we mean by "broken symmetries" when referring to superfluid he3 phases?

I struggle to understand the concept of broken symmetries of the superfluid phases of 3He. Any insight would be much appreciated.

Thanks :)

 

[genneth]

I think we're going to need more than that to go on :-) What is the specific problem? Do you understand broken symmetries in the abstract? In BECs? In BCS? XY-model? Is it the particulars of the physics of He-3? The pairing mechanism?

In general, I can recommend no better He-3 textbook than "Quantum Liquids" by Leggett.