A New Class of Particle in 2+1 Dimensions
arXiv:1404.1076 · doi:10.1016/j.physletb.2015.02.050
Abstract
In two spatial dimensions, spin characterizes how particle states re-phase under changes of frame that leave their momentum and energy invariant. Massless particles can in principle have non-trivial spin in this sense, but all existing field theories only describe the trivial case. This letter presents a field theory for a massless particle with non-trivial physical spin. These particles are the 2+1-dimensional analogues of "continuous-spin" particles in 3+1 dimensions, but here they have only two real degrees of freedom, related by parity. They can be understood as massless generalizations of anyons, but are simpler in key respects.
4 pages
Cited by in corpus (7)
- Elementary particles with continuous spin
- Interactions of Particles with "Continuous Spin" Fields
- Off-shell Supersymmetric Continuous Spin Gauge Theory
- Higher-spin gauge theories in three spacetime dimensions
- Thermodynamics of Continuous Spin photons
- Infinite spin fields in d = 3 and beyond
- Considerations Concerning the Little Group