Superiority of heterodyning over homodyning: An assessment with quadrature moments

Y. S. Teo; C. R. Müller; H. Jeong; Z. Hradil; J. ?ehác?k; L. L. Sánchez-Soto

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Superiority of heterodyning over homodyning: An assessment with quadrature moments

机译：在兴起的自差的优越性：与正交时刻的评估

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摘要

We examine the moment-reconstruction performance of both the homodyne and heterodyne (doublehomodyne) measurement schemes for arbitrary quantum states and introduce moment estimators that optimize the respective schemes for any given data. In the large-data limit, these estimators are as efficient as the maximum-likelihood estimators. We then illustrate the superiority of the heterodyne measurement for the reconstruction of the first and second moments by analyzing Gaussian states and many other significant nonclassical states. Finally, we present an extension of our theories to two-mode sources, which can be straightforwardly generalized to all other multimode sources.

机译：我们研究了任意量子状态的杂差和外差（Doublehomodyne）测量方案的力矩 - 重建性能，并引入了优化任何给定数据的各个方案的时刻估计器。在大数据限制中，这些估算器与最大似然估计器有效。然后，我们通过分析高斯状态和许多其他重要的非相关国家来说明外差测量的优越性，用于重建第一和第二矩。最后，我们展示了我们的两个模式源的理论的延伸，这可以直接推广到所有其他多模源。

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《Physical Review, A》 |2017年第1期|共17页
作者
Y. S. Teo; C. R. Müller; H. Jeong; Z. Hradil; J. ?ehác?k; L. L. Sánchez-Soto;
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作者单位

BK21 Frontier Physics Research Division Seoul National University 08826 Seoul South Korea;

Max-Planck-Institut für die Physik des Lichts Staudtstra?e 2 91058 Erlangen Germany;

Center for Macroscopic Quantum Control Seoul National University 08826 Seoul South Korea;

Department of Optics Palacky University 17. listopadu 12 77146 Olomouc Czech Republic;

Department of Optics Palacky University 17. listopadu 12 77146 Olomouc Czech Republic;

Max-Planck-Institut für die Physik des Lichts Staudtstra?e 2 91058 Erlangen Germany;

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正文语种 eng
中图分类物理学;分子物理学、原子物理学;原子核物理学、高能物理学;光学;
关键词
Superiority; heterodyning over homodyning; quadrature moments;

机译：优越性;在昏迷中的自差;正交时刻;

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1. Superiority of heterodyning over homodyning: An assessment with quadrature moments [J] . Y. S. Teo, C. R. Müller, H. Jeong, Physical Review, A . 2017,第4aPta1期

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6. Noise characteristics of heterodyne/homodyne frequency-domain measurements [O] . Dongyel Kang, Matthew A. Kupinski 2012

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7. Superiority of heterodyning over homodyning: An assessment with quadrature moments [O] . Teo Y. S., Müller C. R., Jeong H., 2017

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8. Homodyning and heterodyning the quantum phase [R] . Dariano, Giacomo M., Macchiavello, C., Paris, M. G. A. 1994

机译：对量子相进行同步和外差

Superiority of heterodyning over homodyning: An assessment with quadrature moments

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