Title :
Multilayer Josephson Junctions as a Multiple Quantum Well Structure
Author_Institution :
Univ. of Waterloo, Waterloo
fDate :
6/1/2007 12:00:00 AM
Abstract :
The macroscopic quantum model in conjunction with the transfer matrix method and Bloch wave analysis have been used to compute the energy dispersion equation for Cooper pairs in finite superconducting quantum well (SQW) structures. The energy dispersion equation has been numerically solved by the Cauchy Integration method to obtain the energy levels of quantum states in SQW. The possibility of energy levels and subbands formation for Cooper pairs within the bulk energy gap has been shown. Energy gap squeezing has been derived when the Bragg condition for Bloch wave number is satisfied.
Keywords :
Cooper pairs; Josephson effect; quantum wells; superconducting energy gap; superconducting superlattices; Bloch wave analysis; Bloch wave number Bragg condition; Cauchy integration method; Cooper pairs; energy dispersion equation; energy gap squeezing; energy levels; macroscopic quantum model; multilayer Josephson junctions; multiple quantum well structure; quantum states; superconducting quantum well; transfer matrix method; Energy states; Equations; Josephson junctions; Nonhomogeneous media; Quantum cascade lasers; Quantum computing; Superconducting devices; Superconducting epitaxial layers; Superlattices; Wave functions; Multilayer Josephson Junctions; THz devices; quantum well structures; superconducting devices;
Journal_Title :
Applied Superconductivity, IEEE Transactions on
DOI :
10.1109/TASC.2007.897705
