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Photonic Quantum Computing

Temporal imaging for ultra-narrowband few-photon states of light

arXiv
Authors: Mateusz Mazelanik, Adam Leszczyński, Michał Lipka, Michał Parniak, Wojciech Wasilewski

Year

2019

Paper ID

14916

Status

Preprint

Abstract Read

~2 min

Abstract Words

85

Citations

N/A

Abstract

Plenty of quantum information protocols are enabled by manipulation and detection of photonic spectro-temporal degrees of freedom via light-matter interfaces. While present implementations are well suited for high-bandwidth photon sources such as quantum dots, they lack the high resolution required for intrinsically narrow-band light-atom interactions. Here, we demonstrate far-field temporal imaging based on ac-Stark spatial spin-wave phase manipulation in a multimode gradient echo memory. We achieve spectral resolution of 20 kHz with MHz-level bandwidth and ultra-low noise equivalent to 0.023 photons, enabling operation in the single-quantum regime.

Why This Paper Matters

  • This paper contributes to the Photonic Quantum Computing research area in the Quantum Articles archive.
  • It adds a 2019 reference point for readers tracking recent quantum research.
  • Plenty of quantum information protocols are enabled by manipulation and detection of photonic spectro-temporal degrees of freedom via light-matter interfaces.

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References & Citation Signals

[1] DOI https://doi.org/arXiv:1911.03995 [2] arXiv https://arxiv.org/abs/1911.03995 [3] Publisher https://arxiv.org/abs/1911.03995

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