Controllable Quantum States: Mesoscopic Superconductivity & by Hideaki Takayanagi, Junsaku Nitta, Hayato Nakano


By Hideaki Takayanagi, Junsaku Nitta, Hayato Nakano

This quantity is a suite of papers from the fourth assembly of the overseas Symposium on Mesoscopic Superconductivity and Spintronics held at NTT Atsugi, Japan. examine in those fields has complex greatly because the past assembly, mostly simply because those fields have drawn a lot recognition from the perspective of recent quantum phenomena and quantum details know-how. Mesoscopic superconductivity has been constructed in new fields, similar to a ferromagnet/superconductor junction, the proximity impact in unconventional superconductors, macroscopic quantum tunneling in high-Tc superconductors, quantum modulation of superconducting junctions and superconducting quantum bits. This publication additionally covers delivery and spins in nano-scale semiconductor constructions reminiscent of quantum dots and wires, quantum interference and coherence and order in unique fabrics, and a few papers on quantum set of rules. This booklet thoroughly offers an outline of modern development in mesoscopic superconductivity.

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Extra resources for Controllable Quantum States: Mesoscopic Superconductivity & Spintronics (MS+S2006), Procedings of the International Symposium, NTT Basic Res Labatories, Japan 27 February - 2 Marc

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Note that this is realistic when the S layer thickness is larger than ξ0 12 . , by adding to each on-site energy a random number chosen in the range [−U/2, U/2], being U a fraction of the Fermi energy. In what follows we shall indicate energies in units of Δ0 , and lengths in units of the lattice constant a (of the order of the Fermi wavelength). In order to analyze the behavior of conductances and MR as a function of the various parameters we used a two-dimensional (2D) model of the structure so that the F layers are in the diffusive regime 13 .

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R . g. Ωr and Ωr±1 , must be different, or the substrings would merge. r r , and jN + 1 ≡ j1r+1 ) The rth substring (the indices in which run from j1r to jN r r ¯ r (the complement yields the product of the Kronecker symbols, ensuring that on Ω of Ωr ) r +1 ≡ |p r+1 . 5in Zagoskin˙Nonlinear˙MSS2006 18 Let us call the substrings mutual, if they contain qubit indices from the same entangled cluster; a substring, which has no mutuals on S, is called unique. Then we define a joint (disjoint) correlator as the one, the index string of which does (does not) contain at least one unique substring.

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