Quantum vortex fluctuations in cuprate superconductors

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We study the effects of quantum vortex fluctuations in two-dimensional superconductors using a dual theory of vortices, and investigate the relevance to underdoped cuprates where the superconductor-insulator transition (SIT) is possibly driven by quantum vortex proliferation. We find that a broad enough phase fluctuation regime may exist for experimental observation of the quantum vortex fluctuations near SIT in underdoped cuprates. We propose that this scenario can be tested via pair-tunneling experiments that measure the characteristic resonances in the zero-temperature pair-field susceptibility in the vortex-proliferated insulating phase.

Original languageEnglish (US)
JournalPhysical Review B - Condensed Matter and Materials Physics
Issue number13
StatePublished - Mar 7 2001
Externally publishedYes

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics


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