Friday, March 1, 2019

Can Lorentz Violation Unify Particle Physics and Condensed Matter Physics?

Physics today featured a great article that discusses unification in physics. I especially want to highlight the unification of phenomenon in condensed matter and particle physics. In my view, one of the main reasons that unification of particle physics and condensed matter physics is not taking place is that the latter involves phenomena that involves Lorentz violating operators, and particle physicists abhor any mention of this (Read more about why this is the case here). 

I published a paper (arXiv:1206.2530) in 2012 showing that the well known Rashba interaction in condensed matter physics can be obtained from Lorentz violation. In a follow up paper (arXiv:1403.7622) I pointed out various terms in condensed matter physics that are already there in Lorentz violation but these terms are well enhanced in condensed matter physics. The fact that we have enhanced Lorentz violation indicates that we might be missing something in our understanding of Lorentz invariance. But, again, particle physicists are so obsessed with Lorentz symmetry that they will never consider this as a possible path of unification between the two fields. Another issue is that condensed matter physicists are usually unaware of this possible connection as well.

So in my opinion, there is clear indication that the unification might be possible but physicists from both fields are not very inclined to take an interdisciplinary approach.

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