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arXiv 1104.1863quant-ph
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集成光子传感

Integrated Photonic Sensing

Nicholas Thomas-Peter, Nathan K Langford, Animesh Datta, Lijian Zhang, Brian J Smith, Justin B Spring, Benjamin J Metcalf, Hendrik B Coldenstrodt-Ronge, Michael… 展开作者

Nicholas Thomas-Peter, Nathan K Langford, Animesh Datta, Lijian Zhang, Brian J Smith, Justin B Spring, Benjamin J Metcalf, Hendrik B Coldenstrodt-Ronge, Michael Hu, Joshua Nunn, Ian A Walmsley

摘要:

损耗是实现光子量子增强技术的关键障碍。我们探索了一个模块化的平台,实现集成的光子学实验,并考虑在这些实验的不同阶段,包括状态准备,操作和测量的损失的影响。我们的讨论主要是在量子传感的背景下,并特别关注使用的损失容忍Holland-Burnett状态的光学相位估计。特别是,我们讨论了自发的四波混频在标准双折射光纤作为一个源的纯,预示着单光子和目前的方法优化这些来源。我们还概述了一条路线,可编程电路,即使在存在制造缺陷的光子相互作用的控制,并描述了一个比率表征方法的分束器,它允许复杂的电路的特性,而不需要全过程层析成像。最后,我们提出了一个框架,用于执行状态层析成像的预示状态使用有损测量设备。这是出于使用Holland-Burnett状态的精确测量的制造缺陷的影响的计算。

英文摘要:

Loss is a critical roadblock to achieving photonic quantum-enhanced technologies. We explore a modular platform for implementing integrated photonics experiments and consider the effects of loss at different stages of these experiments, including state preparation, manipulation and measurement. We frame our discussion mainly in the context of quantum sensing and focus particularly on the use of loss-tolerant Holland-Burnett states for optical phase estimation. In particular, we discuss spontaneous four-wave mixing in standard birefringent fibre as a source of pure, heralded single photons and present methods of optimising such sources. We also outline a route to programmable circuits which allow the control of photonic interactions even in the presence of fabrication imperfections and describe a ratiometric characterisation method for beam splitters which allows the characterisation of complex circuits without the need for full process tomography. Finally, we present a framework for performing state tomography on heralded states using lossy measurement devices. This is motivated by a calculation of the effects of fabrication imperfections on precision measurement using Holland-Burnett states.

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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