小型约瑟夫森结中微波与布洛赫振荡同步产生的量化电流阶跃

Rais S. Shaikhaidarov, Kyung Ho Kim, Jacob Dunstan, Ilya Antonov, Dmitry Golubev, Vladimir N Antonov, Oleg V Astafiev
{"title":"小型约瑟夫森结中微波与布洛赫振荡同步产生的量化电流阶跃","authors":"Rais S. Shaikhaidarov, Kyung Ho Kim, Jacob Dunstan, Ilya Antonov, Dmitry Golubev, Vladimir N Antonov, Oleg V Astafiev","doi":"arxiv-2409.05707","DOIUrl":null,"url":null,"abstract":"Synchronization of Bloch oscillations in small Josephson junctions (JJs)\nunder microwave radiation, which leads to current quantization, has been\nproposed as an effect that is dual to the appearance of Shapiro steps. This\ncurrent quantization was recently demonstrated in superconducting nanowires in\na compact high-impedance environment. Direct observation of current\nquantization in JJs would cofirm the synchronization of Bloch oscillations with\nmicrowaves and help with the realisation of the metrological current standard.\nHere, we place JJs in a high-impedance environment and demonstrate dual Shapiro\nsteps for frequencies up to 24 GHz (I=7.7 nA). Current quantization exists,\nhowever, only in a narrow range of JJ parameters. We carry out a systematic\nstudy to explain this by invoking the model of a JJ in the presence of thermal\nnoise. The findings are important for fundamental physics and application in\nquantum metrology.","PeriodicalId":501069,"journal":{"name":"arXiv - PHYS - Superconductivity","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2024-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Quantized current steps due to the synchronization of microwaves with Bloch oscillations in small Josephson junctions\",\"authors\":\"Rais S. Shaikhaidarov, Kyung Ho Kim, Jacob Dunstan, Ilya Antonov, Dmitry Golubev, Vladimir N Antonov, Oleg V Astafiev\",\"doi\":\"arxiv-2409.05707\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Synchronization of Bloch oscillations in small Josephson junctions (JJs)\\nunder microwave radiation, which leads to current quantization, has been\\nproposed as an effect that is dual to the appearance of Shapiro steps. This\\ncurrent quantization was recently demonstrated in superconducting nanowires in\\na compact high-impedance environment. Direct observation of current\\nquantization in JJs would cofirm the synchronization of Bloch oscillations with\\nmicrowaves and help with the realisation of the metrological current standard.\\nHere, we place JJs in a high-impedance environment and demonstrate dual Shapiro\\nsteps for frequencies up to 24 GHz (I=7.7 nA). Current quantization exists,\\nhowever, only in a narrow range of JJ parameters. We carry out a systematic\\nstudy to explain this by invoking the model of a JJ in the presence of thermal\\nnoise. The findings are important for fundamental physics and application in\\nquantum metrology.\",\"PeriodicalId\":501069,\"journal\":{\"name\":\"arXiv - PHYS - Superconductivity\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2024-09-09\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"arXiv - PHYS - Superconductivity\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/arxiv-2409.05707\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"arXiv - PHYS - Superconductivity","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/arxiv-2409.05707","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0

摘要

在微波辐射下,小型约瑟夫森结(JJs)中布洛赫振荡的同步化会导致电流量子化,这被认为是与夏皮罗阶跃的出现具有双重性的效应。最近,这种电流量子化现象在超导纳米线的紧凑型高阻抗环境中得到了证实。直接观察 JJ 中的电流量子化将证实布洛赫振荡与微波的同步性,并有助于实现计量电流标准。在此,我们将 JJ 置于高阻抗环境中,并演示了频率高达 24 GHz(I=7.7 nA)的双重夏皮罗阶跃。然而,电流量化仅存在于 JJ 参数的狭窄范围内。我们开展了一项系统研究,通过引用存在热噪声的 JJ 模型来解释这一现象。研究结果对基础物理学和量子计量学的应用具有重要意义。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Quantized current steps due to the synchronization of microwaves with Bloch oscillations in small Josephson junctions
Synchronization of Bloch oscillations in small Josephson junctions (JJs) under microwave radiation, which leads to current quantization, has been proposed as an effect that is dual to the appearance of Shapiro steps. This current quantization was recently demonstrated in superconducting nanowires in a compact high-impedance environment. Direct observation of current quantization in JJs would cofirm the synchronization of Bloch oscillations with microwaves and help with the realisation of the metrological current standard. Here, we place JJs in a high-impedance environment and demonstrate dual Shapiro steps for frequencies up to 24 GHz (I=7.7 nA). Current quantization exists, however, only in a narrow range of JJ parameters. We carry out a systematic study to explain this by invoking the model of a JJ in the presence of thermal noise. The findings are important for fundamental physics and application in quantum metrology.
求助全文
通过发布文献求助,成功后即可免费获取论文全文。 去求助
来源期刊
自引率
0.00%
发文量
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
copy
已复制链接
快去分享给好友吧!
我知道了
右上角分享
点击右上角分享
0
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术官方微信