Demonstration of photon-echo rephasing of spontaneous emission

Sarah E. Beavan; Morgan P. Hedges; Matthew J. Sellars

doi:10.1103/PhysRevLett.109.093603

Demonstration of photon-echo rephasing of spontaneous emission

Sarah E. Beavan^*, Morgan P. Hedges, Matthew J. Sellars

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

29 Citations (Scopus)

Abstract

In this paper we report the first demonstration of "rephased amplified spontaneous emission" (RASE) with photon-counting detection. This protocol provides an all-in-one photon-pair source and quantum-memory that has applications as a quantum repeater node. The RASE protocol is temporally multimode, and in this demonstration the photon echo was generated in a way that is spatially multimode and includes intermediate storage between two potentially long-lived spin states. A correlation between spontaneous emission and its photon echo was observed, using an ensemble of Pr3 ⁺ ions doped into a Y ₂SiO ₅ crystal. Alterations that would allow for the measurement of nonclassical correlations are identified. These should generally apply for future experiments in rare-earth ion crystals, which are promising systems for implementing highly-multiplexed quantum repeater operations.

Original language	English
Article number	093603
Journal	Physical Review Letters
Volume	109
Issue number	9
DOIs	https://doi.org/10.1103/PhysRevLett.109.093603
Publication status	Published - 29 Aug 2012

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10.1103/PhysRevLett.109.093603

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AB - In this paper we report the first demonstration of "rephased amplified spontaneous emission" (RASE) with photon-counting detection. This protocol provides an all-in-one photon-pair source and quantum-memory that has applications as a quantum repeater node. The RASE protocol is temporally multimode, and in this demonstration the photon echo was generated in a way that is spatially multimode and includes intermediate storage between two potentially long-lived spin states. A correlation between spontaneous emission and its photon echo was observed, using an ensemble of Pr3 + ions doped into a Y 2SiO 5 crystal. Alterations that would allow for the measurement of nonclassical correlations are identified. These should generally apply for future experiments in rare-earth ion crystals, which are promising systems for implementing highly-multiplexed quantum repeater operations.

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Demonstration of photon-echo rephasing of spontaneous emission

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