Violating Bell inequalities with entangled optical frequency combs and multi-pixel homodyne detection

Abstract : We have theoretically investigated the possibility of using any of several continuous-variable Bell-type inequalities - for which the dichotomic measurements are achieved with coarse-grained quadrature (homodyne) measurements - in a multi-party configuration where each participant is given a section, in the frequency domain, of the output of an optical parametric oscillator which has been synchronously-pumped with a frequency comb. Such light sources are undergoing intense study due to their novel properties, including the potential for production of light entangled in many hundreds of physical modes - a critical component for many proposals in optical or hybrid-optical quantum computation proposals. The situation we study notably uses only highly-efficient optical homodyne detection, meaning that in such systems the fair-sampling loophole would be relatively easy to avoid.
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Journal articles
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https://hal.sorbonne-universite.fr/hal-01931758
Contributor : Damian Markham <>
Submitted on : Friday, November 23, 2018 - 12:23:34 AM
Last modification on : Friday, July 5, 2019 - 3:26:03 PM

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  • HAL Id : hal-01931758, version 1
  • ARXIV : 1805.06059

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William N. Plick, Francesco Arzani, Nicolas Treps, Eleni Diamanti, Damian Markham. Violating Bell inequalities with entangled optical frequency combs and multi-pixel homodyne detection. Physical Review A, American Physical Society, In press. ⟨hal-01931758⟩

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