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  • Letter
  • Open Access

Controlled displacement of stored light at room temperature

Arash Ahmadi1,*, Yağız Murat1, Pei-Chen Kuan2, Mustafa Gündoğan1,†, and Markus Krutzik1,3

  • *Contact author: arash.ahmadi@physik.hu-berlin.de
  • †Contact author: mustafa.guendogan@physik.hu-berlin.de
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Phys. Rev. A 112, L021501 – Published 5 August, 2025

DOI: https://doi.org/10.1103/dckj-h2wd

Abstract

We report the demonstration of spatially translating a stored optical pulse at room temperature over distances exceeding one optical wavelength. By implementing an interferometric scheme, we further measure the average speed of this linear translation, thus harnessing a stopped-light experiment for a sensing application. This work extends the use of quantum memories beyond quantum communication and information contexts, opening a pathway to novel methods of velocity measurements with high sensitivity.

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Phys. Rev. A 112, L021501– Published 5 August, 2025
  • Received 6 May 2025
  • Accepted 11 July 2025
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