(ii) Vortices With Integer Phase Winding and Fractional Flux in Multicomponent Superconductivity
Different kind of "Fractional vortices" appears in the different context in multi-component superconductivity where several independent charged condensates or superconducting components interact with each other electromagnetically. Such a situation occurs for example in the theories of the projected quantum states of liquid metallic hydrogen, where two order parameters originate from theoretically anticipated coexistence of electronic and protonic Cooper pairs. There topological defects with an (i.e. "integer") phase winding only in electronic or only in protonic condensate carries fractionally quantized magnetic flux: a consequence of electromagtnetic interaction with the second condensate. Also these fractional vortices carry a superfluid momentum which does not obey Onsager-Feynman quantization Despite the integer phase winding, the basic properties of this kind of fractional vortices are very different from Abrikosov vortex solutions. For example in contrast to Abrikosov vortex their magnetic field, generically is not exponentially localized in space. Also in some cases the magnetic flux inverts its direction at a certain distance from the vortex center
Read more about this topic: Fractional Vortices
Famous quotes containing the words fractional, flux, winding and/or phase:
“Hummingbird
stay for a fractional sharp
sweetness, and’s gone, can’t take
more than that.”
—Denise Levertov (b. 1923)
“Beauty is our weapon against nature; by it we make objects, giving them limit, symmetry, proportion. Beauty halts and freezes the melting flux of nature.”
—Camille Paglia (b. 1947)
“Man is the shuttle, to whose winding quest
And passage through these looms
God ordered motion, but ordained no rest.”
—Henry Vaughan (1622–1695)
“The Indians feel that each stage is crucial and that the child should be allowed to dwell in each for the appropriate period of time so that every aspect of his being can evolve, just as a plant evolves in the proper time and sequence of the seasons. Otherwise, the child never has a chance to master himself in any one phase of his life.”
—Alan Quetone (20th century)