We discuss collective excitations (both fundamental and solitonic excitations) of quantized superfluid vortices in neutron P23 superfluids, which likely exist in high density neutron matter such as neutron stars. Besides the well-known Kelvin modes (translational zero modes), we find a gapful mode whose low-energy description takes the simple form of a double sine-Gordon model. The associated kink solution and its effects on spontaneous magnetization inside the vortex core are analyzed in detail.
ASJC Scopus subject areas
- Nuclear and High Energy Physics