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Bill, A. Kresin, V.Z. and Wolf, S.A. (1998) The Isotope Effect in Superconductors. In: Kresin, V.Z., Ed., Pair Correlations in Many-Fermion Systems, Springer, Boston, MA, 25-55.
https://arxiv.org/abs/cond-mat/9801222
https://doi.org/10.1007/978-1-4899-1555-9_2

has been cited by the following article:

• TITLE: The QCD Ground State Chiral Tetrahedron Symmetry

  AUTHORS: Rami Rom

  KEYWORDS: QCD Vacuum, Pseudo-Goldstone Boson, Bose Einstein Condensate (BEC), Lattice QCD, Gluon Junctions, Tetrahedrons, Cooper Pairs, Isotope Effect, Superconductor, Dirac Equation, Klein Paradox, Cosmic Web Voids, Doppler Redshift, Black Hole Laser

  JOURNAL NAME: Journal of High Energy Physics, Gravitation and Cosmology, Vol.9 No.4, October 17, 2023

  ABSTRACT: We propose that the exotic meson tetraquark ud~dũ introduced in previous papers, may be a pseudo-Goldstone boson having a tetrahedron geometry and symmetry. The transition from the neutral pion superposition of two free mesons, dd~ and uũ, to the tetrahedron geometry with optional two chiral states may be the symmetry breaking of the QCD ground state. The ud~dũ tetrahedron mass may be calculated by measuring the β decay rate variability. We assume that electrons and positrons are composite particle exotic tetraquarks, dũdd~ for the electrons and ud~dd~ for the positrons and confined by the strong force. We propose that the QCD tetrahedrons play a central role in electron pairing mechanism in both chemical bond forming and superconductor Cooper pairs. We propose a hypothesis where the QCD ground state tetrahedrons play a central role in low energy physics where quark exchange reactions between particles and the QCD tetrahedrons via gluon junctions transfer all the forces. The QCD ground state ud~dũ tetrahedrons hypothesis provides a symmetry breaking and a mass gap may be created by the ground state QCD tetrahedrons Bose-Einstein condensate.