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Abstract <p>An optical quantum memory protocol is implemented in schemes of silenced echo revival in a <sup>167</sup>Er<sup>3+</sup>:Y<sub>2</sub>SiO<sub>5</sub> crystal at a telecommunication wavelength. The signal pulse recovery efficiency is 13% at a storage time of 60 μs for the optimum intensity of rephasing laser pulses. With a further increase in the laser pulse intensity, a superradiance pulse appears, causing a decrease in the signal pulse recovery efficiency. A way of improving the quantum memory efficiency by further increasing the pulse area of rephasing pulses is discussed.</p>

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Experimental Study of a Quantum Memory Protocol: Revival of Silenced Echo and Superradiance

  • 期刊论文

  • 发表日期：

    2025年12月9日

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  • M. M. Minnegaliev,
  • K. I. Gerasimov,
  • S. A. Moiseev

摘要

Abstract

An optical quantum memory protocol is implemented in schemes of silenced echo revival in a 167Er3+:Y2SiO5 crystal at a telecommunication wavelength. The signal pulse recovery efficiency is 13% at a storage time of 60 μs for the optimum intensity of rephasing laser pulses. With a further increase in the laser pulse intensity, a superradiance pulse appears, causing a decrease in the signal pulse recovery efficiency. A way of improving the quantum memory efficiency by further increasing the pulse area of rephasing pulses is discussed.