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Photonic Quantum Computing

Storage and retrieval of ultrafast single photons using a room-temperature diamond quantum memory

arXiv
Authors: Duncan G. England, Kent A. G. Fisher, Jean-Philippe W. MacLean, Philip J. Bustard, Rune Lausten, Kevin J. Resch, Benjamin J. Sussman

Year

2014

Paper ID

47620

Status

Preprint

Abstract Read

~2 min

Abstract Words

90

Citations

N/A

Abstract

We report the storage and retrieval of single photons, via a quantum memory, in the optical phonons of room-temperature bulk diamond. The THz-bandwidth heralded photons are generated by spontaneous parametric downconversion and mapped to phonons via a Raman transition, stored for a variable delay, and released on demand. The second-order correlation of the memory output is g(2)(0) = 0.65 pm 0.07, demonstrating preservation of non-classical photon statistics throughout storage and retrieval. The memory is low-noise, high-speed and broadly tunable; it therefore promises to be a versatile light-matter interface for local quantum processing applications.

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  • We report the storage and retrieval of single photons, via a quantum memory, in the optical phonons of room-temperature bulk diamond.

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References & Citation Signals

[1] DOI https://doi.org/arXiv:1409.2892 [2] arXiv https://arxiv.org/abs/1409.2892 [3] Publisher https://arxiv.org/abs/1409.2892

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