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.
arXiv comment4 pages
References in corpus (4)
Cited by in corpus (13)
- Elementary particles with continuous spin
- A gauge field theory of fermionic Continuous-Spin Particles
- Infinite (continuous) spin fields in the frame-like formalism
- Gauge Theory Formulations for Continuous and Higher Spin Fields
- Lagrangian formulation for the infinite spin N=1 supermultiplets in d=4
- Integrable Amplitude Deformations for N=4 Super Yang-Mills and ABJM Theory
- Interactions of Particles with "Continuous Spin" Fields
- Supersymmetric Continuous Spin Gauge Theory
- 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