2009/04/30 by Matthias Eschrig, M. Eschrig, J. A. Sauls · 12 citations
Physics and Astronomy · #Advanced Condensed Matter Physics #Bound state #Condensed matter physics #Excitation #Mechanics #Physics #Physics of Superconductivity and Magnetism #Quantum mechanics #Quantum, superfluid, helium dynamics #Superconductivity #Superfluidity #Vortex #cond-mat.str-el #cond-mat.supr-con
paper · pdf · doi:10.1088/1367-2630/11/7/075009
published in New Journal of Physics 11(7), 075009 (IOP Publishing) · 22 pages, 3 figures, typos corrected
arxiv created 2009/05/11 · openalex publication_date 2009/07/17 · arxiv updated 2010/11/16 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
Abstract. In an accompanying paper [J.A. Sauls and M. Eschrig, Vortices in chiral, spin-triplet superconductors and superfluids, arXiv:0903.0011] we have studied the equilibrium properties of vortices in a chiral quasi-twodimensional triplet superfluid/superconductor. Here we extend our studies to include the dynamical response of a vortex core in a chiral triplet superconductor to an external a.c. electromagnetic field. We consider in particular the response of a doubly quantized vortex with a homogeneous core in the time-reversed phase. The external frequencies are assumed to be comparable in magnitude to the superconducting gap frequency, such that the vortex motion is non-stationary but can be treated by linear response theory. We include broadening of the vortex core bound states due to impurity scattering and consider the intermediate clean regime, with a broadening comparable to or larger than the quantized energy level spacing. The response of the order parameter, impurity self energy, induced fields and currents are obtained by a self-consistent calculation of the distribution functions and the excitation spectrum. Using these results we obtain the self-consistent dynamically induced charge distribution in the vicinity of the core. This