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Superconductivity: A New Approach Based On The Bethe-salpeter Equation In The Mean-field Approximation (Hardcover)
Loot Price: R2,730
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Superconductivity: A New Approach Based On The Bethe-salpeter Equation In The Mean-field Approximation (Hardcover)
Series: Series on Directions in Condensed Matter Physics, 21
Expected to ship within 12 - 17 working days
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Given the Debye temperature of an elemental superconductor (SC) and
its Tc, BCS theory enables one to predict the value of its gap 0 at
T = 0, or vice versa. This monograph shows that non-elemental SCs
can be similarly dealt with via the generalized BCS equations
(GBCSEs) which, given any two parameters of the set {Tc, 10, 20
> 10}, enable one to predict the third. Also given herein are
new equations for the critical magnetic field and critical current
density of an elemental and a non-elemental SC - equations that are
derived directly from those that govern pairing in them.The
monograph includes topics that are usually not covered in any one
text on superconductivity, e.g., BCS-BEC crossover physics, the
long-standing puzzle posed by SrTiO3, and heavy-fermion
superconductors - all of which are still imperfectly understood and
therefore continue to avidly engage theoreticians. It suggests that
addressing the Tcs, s and other properties (e.g., number densities
of charge carriers) of high-Tc SCs via GBCSEs incorporating
chemical potential may lead to tangible clues about raising their
Tcs. The final chapter in this monograph deals with solar emission
lines and quarkonium spectra because of a feature common between
them and superconductivity: existence of a bound state in a medium
at finite temperature. This is a problem on which the author has
worked for more than 25 years. The treatment in the text is
elementary - even those who have only a cursory familiarity with
Feynman diagrams should be able to follow it without much
difficulty.
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