Titlebook: Recent Progress in MANY-BODY THEORIES; A. J. Kallio,E. Pajanne,R. F. Bishop Book 1988 Plenum Press, New York 1988 X-Ray.glass.liquid.many-

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Andreev Scattering at Rough Surfacesand, to a good approximation, conserves its momentum. Such a process is peculiar to superconductors and superfluids where a quasiparticle can combine into a Cooper pair with another quasiparticle of nearly opposite momentum and substitute in its own place the hole or the particle left behind by the

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Book 1988ld in Oulu, Finland during the period 3-8 August 1987. The general format and style of the meeting followed closely those which had evolved from the earlier conferences in the series: Trieste 1978, Oaxtepec 1981, Altenberg 1983 and San Francisco 1985. Thus, the conferences in this series are in­ ten

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inclusive

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Numerical Investigation of the Fractional Quantum Hall Effectngth of the magnetic field. At the same time the longitudinal conductivity σ. becomes very small. The deviation from the plateau value for σ. or the absolute value of σ. at finite temperatures is given by activation energy type behavior: ∝exp(−W/kT)..

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Variational Studies of Strongly Correlated Ground States: Applications to the Anderson Lattice and tint is either the well-known Hubbard model, or the periodic Anderson model (PAM).L is the number of lattice sites. Here we neglect the orbital degeneracy of both the wide d-band, and of the strongly correlated f-orbitals. We will assume U → ∞ throughout, allowing only the valence states f. and f..

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Magnetoconductance of Two Dimensional Disordered Systemsfield without any oscillation with period of the quantum flux, and for weak impurity scattering <σ.(B)> is smaller (larger) than the impurity free sample conductance for small (large) B values. The effects of the many body electron-electron interactions on the magnetoconductance are incorporated into the present formalism.

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