• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Physical review >Nondegenerate parametric oscillations in a tunable superconducting resonator
【24h】

Nondegenerate parametric oscillations in a tunable superconducting resonator

机译：可调谐超导谐振器中的非简并参量振荡

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

We investigate nondegenerate parametric oscillations in a superconducting microwave multimode resonator that is terminated by a superconducting quantum interference device (SQUID). The parametric effect is achieved by modulating magnetic flux through the SQUID at a frequency close to the sum of two resonator-mode frequencies. For modulation amplitudes exceeding an instability threshold, self-sustained oscillations are observed in both modes. The amplitudes of these oscillations show good quantitative agreement with a theoretical model. The oscillation phases are found to be correlated and exhibit strong fluctuations which broaden the oscillation spectral linewidths. These linewidths are significantly reduced by applying a weak on-resonant tone, which also suppresses the phase fluctuations. When the weak tone is detuned, we observe synchronization of the oscillation frequency with the frequency of the input. For the detuned input, we also observe an emergence of three idlers in the output. This observation is in agreement with theory indicating four-mode amplification and squeezing of a coherent input.
机译：我们研究了超导微波多模谐振器中的非简并参量振荡，该谐振器由超导量子干涉装置（SQUID）终止。通过以接近两个谐振器模式频率之和的频率调制通过SQUID的磁通量，可以达到参数化效果。对于超过不稳定性阈值的调制幅度，在两种模式下均会观察到自持振荡。这些振荡的幅度与理论模型显示出良好的定量一致性。发现振荡相位是相关的，并且表现出强烈的波动，这使振荡谱线宽变宽。通过施加微弱的导通音调可以显着减小这些线宽，这也可以抑制相位波动。当弱音失调时，我们观察到振荡频率与输入频率的同步。对于失谐的输入，我们还观察到输出中出现了三个惰轮。该观察结果与理论模型一致，该理论表明四模放大和相干输入的压缩。

著录项

  • 来源
    《Physical review》 |2018年第14期|652-658|共7页
  • 作者

    Andreas Bengtsson; Philip Krantz; Michael Simoen; Ida-Maria Svensson; Ben Schneider; Vitaly Shumeiko; Per Delsing; Jonas Bylander;

  • 作者单位

    Microtechnology and Nanoscience, Chalmers University of Technology, SE-412 96, Goteborg, Sweden;

    Research Laboratory of Electronics, Massachusetts Institute of Technology, Cambridge. Massachusetts 02139, USA;

    Microtechnology and Nanoscience, Chalmers University of Technology, SE-412 96, Goteborg, Sweden;

    Microtechnology and Nanoscience, Chalmers University of Technology, SE-412 96, Goteborg, Sweden;

    Microtechnology and Nanoscience, Chalmers University of Technology, SE-412 96, Goteborg, Sweden;

    Microtechnology and Nanoscience, Chalmers University of Technology, SE-412 96, Goteborg, Sweden;

    Microtechnology and Nanoscience, Chalmers University of Technology, SE-412 96, Goteborg, Sweden;

    Microtechnology and Nanoscience, Chalmers University of Technology, SE-412 96, Goteborg, Sweden;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    144502.1-144502.7;

    机译：144502.1-144502.7;

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号