Quantum excitations of static charges in the Ginzburg-Landau model of superconductivity
Jeff Greensite, Kazue Matsuyama
DOI 10.1103/PhysRevB.106.174508 · Physical Review B
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Abstract
We point out that in superconductors there may exist localized quantum excitations of the electric and condensate fields surrounding a static charge, which cannot be interpreted as simply the ground state of the screened charge plus some number of massive photons. This is illustrated via a lattice Monte Carlo calculation of the energy spectrum of a pair of separated static charges in an effective Ginzburg-Landau model of superconductivity.
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