Phase engineering techniques in superconducting quantum electronics
نویسندگان
چکیده
منابع مشابه
Quantum phase slips in superconducting nanowires.
We have measured the resistance vs temperature of more than 20 superconducting nanowires with nominal widths ranging from 10 to 22 nm and lengths from 100 nm to 1 microm. With decreasing cross-sectional areas, the wires display increasingly broad resistive transitions. The data are in very good agreement with a model that includes both thermally activated phase slips close to T(c) and quantum p...
متن کاملSuperconducting Digital Electronics —historical Overview
この特集号のテーマは,「この 40年の各専門分野の 変遷と将来展望について」ということで引き受けたが, 筆者が研究を始めたのは 1979年であるので今年まで 続けたとしても筆者の研究期間はいささか短いことに 気がついた.40 年という年月はやっぱり長いと思う が,象徴的意味と考えて引き受けることにした. 超伝導エレクトロニクスの研究はこのころ(1975年 ごろ)から活発になってきたように思う.それは IBM が始めた,ジョセフソン素子を使ってコンピュータを 作ろうというプロジェクトが始まったからである [1]. 日本もこのころに,研究を開始している.そのころの 我が国は,IBMの動向には極めて敏感で,次世代のコ ンピュータの素子は半導体ではなく超伝導であるとい う IBMの考えは,我が国の中でも耳目を集めた.電子 技術総合研究所,電電公社,富士通,日本電気,三菱 電機の研究所で基礎的...
متن کاملFormation of Quantum Phase Slip Pairs in Superconducting Nanowires
A. Belkin, M. Belkin, V. Vakaryuk, S. Khlebnikov, and A. Bezryadin Department of Physics, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, USA Department of Physics and Astronomy, Johns Hopkins University, Baltimore, Maryland 21218, USA American Physical Society, 1 Research Road, Ridge, New York 11961, USA Department of Physics and Astronomy, Purdue University, West Lafayette...
متن کاملQuantum phase slip phenomenon in ultra-narrow superconducting nanorings
The smaller the system, typically - the higher is the impact of fluctuations. In narrow superconducting wires sufficiently close to the critical temperature T(c) thermal fluctuations are responsible for the experimentally observable finite resistance. Quite recently it became possible to fabricate sub-10 nm superconducting structures, where the finite resistivity was reported within the whole r...
متن کاملQuantum Phase Transitions and Vortex Dynamics in Superconducting Networks
Josephson-junction arrays are ideal model systems to study a variety of phenomena such as phase transitions, frustration effects, vortex dynamics and chaos. In this review, we focus on the quantum dynamical properties of lowcapacitance Josephson-junction arrays. The two characteristic energy scales in these systems are the Josephson energy, associated with the tunneling of Cooper pairs between ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Physics: Conference Series
سال: 2008
ISSN: 1742-6596
DOI: 10.1088/1742-6596/97/1/012196