Ballistic detection of weak signals in active Josephson media

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• 作者：N. V. Klenov (1) (6)
  I. I. Soloviev (2) (6)
  A. E. Shchegolev (1)
  A. L. Pankratov (3) (4) (5)
  
  1. Department of Physics ; Moscow State University ; Moscow ; 119991 ; Russia
  6. Lukin State Research Institute of Physical Problems ; Zelenograd ; Moscow ; 124460 ; Russia
  2. Skobeltsyn Institute of Nuclear Physics ; Moscow State University ; Moscow ; 119991 ; Russia
  3. Institute for Physics of Microstructures ; Russian Academy of Sciences ; Nizhni Novgorod ; 603950 ; Russia
  4. Alekseev Nizhni Novgorod State Technical University ; Nizhni Novgorod ; 603950 ; Russia
  5. Lobachevsky Nizhni Novgorod State University ; Nizhni Novgorod ; 603950 ; Russia
  
• 关键词：superconductivity ; Josephson effect ; detection of weak signals ; rapid single ; flux ; quantum logic
• 刊名：Moscow University Physics Bulletin
• 出版年：2015
• 出版时间：January 2015
• 年：2015
• 卷：70
• 期：1
• 页码：35-41
• 全文大小：421 KB
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  19. Fedorov, A, Shnirman, A, Sch枚n, G, Kidiyarova-Shevchenko, A (2007) Reading out the state of a flux qubit by Josephson transmission line solitons. Phys. Rev. B; Condens. Matter Mater. Phys. 75: pp. 224504 CrossRef
  20. Soloviev, I I, Klenov, N V, Pankratov, A L, Il鈥檌chev, E, Kuzmin, L S (2013) Effect of Cherenkov radiation on the jitter of solitons in the driven underdamped Frenkel-Kontorova model. Phys. Rev. E: Stat., Nonlin., Soft Matter Phys. 87: pp. 060901 CrossRef
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• 刊物类别：Physics and Astronomy
• 刊物主题：Physics
  Mathematical and Computational Physics
  Russian Library of Science
  
• 出版者：Allerton Press, Inc. distributed exclusively by Springer Science+Business Media LLC
• ISSN：1934-8460

文摘

This work presents a study of the detection principles for weak magnetic signals in the presence of thermal fluctuations using a superconductor ballistic detector based on Josephson transmission lines. The importance of taking the relativistic aspect into account both in calculating the dynamics of the interaction between a fluxon and current inhomogeneity and in analyzing the influence of thermal fluctuations on this dynamics, is shown. Optimization of detector parameters such as the bias current and energy dissipation is presented to maximize the signal-to-noise ratio.