Frequency-Bin Entanglement of Ultra-Narrow Band Non-Degenerate Photon Pairs

Rieländer, Daniel; Lenhard, Andreas; Jiménez, Osvaldo; Máttar, Alejandro; Cavalcanti, Daniel; Mazzera, Margherita; Acín, Antonio; Riedmatten, Hugues de

doi:10.48550/arxiv.1707.02837

Cited by 2 publications

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“…[68] By improving both the quality of the source and the memory performance, mapping of the correlated single photon onto a spin collective excitation has just been reported this year by the same group. [69] Not long ago, they reported a source of frequency-bin entanglement using the same cavity-enhanced SPDC setup, [70] in which the frequency bins are separated by approximately 500 MHz. The storage of the source remains difficult because several AFCs must be prepared and the spin transitions of all optical excitations must be applied simultaneously.…”

Section: Spin-wave Storage In Reicsmentioning

confidence: 99%

Quantum light storage in rare-earth-ion-doped solids

Hua

Zhou

et al. 2018

Chinese Phys. B

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The reversible transfer of unknown quantum states between light and matter is essential for constructing large-scale quantum networks. Over the last decade, various physical systems have been proposed to realize such quantum memory for light. The solid-state quantum memory based on rare-earth-ion-doped solids has the advantages of a reduced setup complexity and high robustness for scalable application. We describe the methods used to spectrally prepare the quantum memory and release the photonic excitation on-demand. We will review the state of the art experiments and discuss the perspective applications of this particular system in both quantum information science and fundamental tests of quantum physics.

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Section: Spin-wave Storage In Reicsmentioning

confidence: 99%

Quantum light storage in rare-earth-ion-doped solids

Hua

Zhou

et al. 2018

Chinese Phys. B

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“…Precise evaluation of the mode numbers is possible with the introduction of an additional scanning cavity, as demonstrated in Ref. 21.…”

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confidence: 99%

Ultrabright narrow-band telecom two-photon source for long-distance quantum communication

Niizeki

Ikeda

Zheng

et al. 2018

Appl. Phys. Express

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We demonstrate an ultrabright narrow-band two-photon source at the 1.5 -μm telecom wavelength for long-distance quantum communication. By utilizing a bow-tie cavity, we obtain a cavity enhancement factor of 4.06 × 10 4 . Our measurement of the second-order correlation function (2) ( ) reveals that the linewidth of 2.4 MHz has been hitherto unachieved in the 1.5 -μm telecom band. This two-photon source is useful for obtaining a high absorption probability close to unity by quantum memories set inside quantum repeater nodes. Furthermore, to the best of our knowledge, the observed spectral brightness of 3.94 × 10 5 pairs/(s･MHz･mW) is also the highest reported over all wavelengths.

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Frequency-Bin Entanglement of Ultra-Narrow Band Non-Degenerate Photon Pairs

Cited by 2 publications

References 0 publications

Quantum light storage in rare-earth-ion-doped solids

Quantum light storage in rare-earth-ion-doped solids

Ultrabright narrow-band telecom two-photon source for long-distance quantum communication

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