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Proceedings Paper

Observation of strong continuous-variable Einstein-Podolsky-Rosen entanglement using shaped local oscillators
Author(s): Ami Shinjo; Naoyuki Hashiyama; Akane Koshio; Yujiro Eto; Takuya Hirano
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Paper Abstract

The continuous-variable (CV) Einstein-Podolsky-Rosen (EPR) paradox and steering are demonstrated using a pulsed light source and waveguides. We shorten the duration of the local oscillator (LO) pulse by using parametric amplification to improve the temporal mode-matching between the entangled pulse and the LO pulse. After correcting for the amplifier noise, the product of the measured conditional variance of the quadrature-phase amplitudes is 0.74 < 1, which satisfies the EPR-Reid criterion.

Paper Details

Date Published: 24 October 2016
PDF: 6 pages
Proc. SPIE 9996, Quantum Information Science and Technology II, 99960I (24 October 2016); doi: 10.1117/12.2241297
Show Author Affiliations
Ami Shinjo, Gakushuin Univ. (Japan)
Naoyuki Hashiyama, Gakushuin Univ. (Japan)
Akane Koshio, Gakushuin Univ. (Japan)
Yujiro Eto, Gakushuin Univ. (Japan)
Takuya Hirano, Gakushuin Univ. (Japan)


Published in SPIE Proceedings Vol. 9996:
Quantum Information Science and Technology II
Mark T. Gruneisen; Miloslav Dusek; John G. Rarity, Editor(s)

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