A relativistic non-relativistic Goldstone theorem: gapped Goldstones at finite charge density

Details A relativistic non-relativistic Goldstone theorem: gapped Goldstones at finite charge density A relativistic non-relativistic Goldstone theorem: gapped Goldstones at finite charge density

2012-04-06

arxiv.org/abs/1204.1570v1

Physics

High Energy Physics

High Energy Physics - Theory

5 pages

Scientific paper

We adapt the Goldstone theorem to study spontaneous symmetry breaking in relativistic theories at finite charge density. It is customary to treat systems at finite density via non-relativistic Hamiltonians. Here we highlight the importance of the underlying relativistic dynamics. This leads to seemingly new results whenever the charge in question is spontaneously broken and does not commute with other broken charges. These would normally be associated with gapless Goldstone excitations. We find that, in fact, their currents interpolate gapped excitations. We derive exact non-perturbative expressions for their gaps, in terms of the chemical potential and of the symmetry algebra.

Affiliated with

Also associated with

No associations

Rating

A relativistic non-relativistic Goldstone theorem: gapped Goldstones at finite charge density does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with A relativistic non-relativistic Goldstone theorem: gapped Goldstones at finite charge density, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and A relativistic non-relativistic Goldstone theorem: gapped Goldstones at finite charge density will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-36919