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arXiv 0707.0164quant-ph
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引力波探测波段真空压缩的相干控制

Coherent control of vacuum squeezing in the Gravitational-Wave Detection Band

Henning Vahlbruch, Simon Chelkowski, Boris Hage, Alexander Franzen, Karsten Danzmann, Roman Schnabel

摘要:

我们提出并证明了一个压缩真空场稳定锁相的相干控制方案。我们专注于边带场的频率从10 Hz到10 kHz,这是一个频率制度特别感兴趣的引力波检测和传统的控制方案失败了。利用光学参量振荡产生了一个宽带压缩的真空场,并利用平衡零差检测进行了表征。该系统是稳定的控制在长时间内利用两个相干的,但频移的控制字段。为了证明我们的装置的性能压缩场被用于非经典的迈克耳孙干涉仪在音频的灵敏度的改善。

英文摘要:

We propose and demonstrate a coherent control scheme for stable phase locking of squeezed vacuum fields. We focus on sideband fields at frequencies from 10Hz to 10kHz which is a frequency regime of particular interest in gravitational wave detection and for which conventional control schemes have failed so far. A vacuum field with broadband squeezing covering this entire band was produced using optical parametric oscillation and characterized with balanced homodyne detection. The system was stably controlled over long periods utilizing two coherent but frequency shifted control fields. In order to demonstrate the performance of our setup the squeezed field was used for a nonclassical sensitivity improvement of a Michelson interferometer at audio frequencies.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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