High-Temperature Superconductivity

V L Ginzburg and D A Kirzhnits (eds) 1982 New York: Academic xv + 364 pp price $55 One of the authors of this book had previously said 'Yes, high-temperature superconductivity is a dream, but a sufficiently realistic one'. The Bardeen–Cooper–Schrieffer theory of superconductivity is the accepted basis, but the attraction which causes pairing of electrons need not be limited to phonon interaction: it could also include a purely electronic interaction which is described as being due to excitons.