Spontaneous Symmetry Probing

Details Spontaneous Symmetry Probing Spontaneous Symmetry Probing

2011-12-21

arxiv.org/abs/1112.5174v1

Physics

High Energy Physics

High Energy Physics - Theory

31 pages

Scientific paper

For relativistic quantum field theories, we consider Lorentz breaking, spatially homogeneous field configurations or states that evolve in time along a symmetry direction. We dub this situation "spontaneous symmetry probing" (SSP). We mainly focus on internal symmetries, i.e. on symmetries that commute with the Poincare group. We prove that the fluctuations around SSP states have a Lagrangian that is explicitly time independent, and we provide the field space parameterization that makes this manifest. We show that there is always a gapless Goldstone excitation that perturbs the system in the direction of motion in field space. Perhaps more interestingly, we show that if such a direction is part of a non-Abelian group of symmetries, the Goldstone bosons associated with spontaneously broken generators that do not commute with the SSP one acquire a gap, proportional to the SSP state's "speed". We outline possible applications of this formalism to inflationary cosmology.

Affiliated with

Also associated with

No associations

Rating

Spontaneous Symmetry Probing 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 Spontaneous Symmetry Probing, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Spontaneous Symmetry Probing will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-305544