Single-Shot Nondestructive Detection of Rydberg-Atom Ensembles by Transmission Measurement of a Microwave Cavity

S. Garcia, M. Stammeier, J. Deiglmayr, F. Merkt, and A. Wallraff
Phys. Rev. Lett. 123, 193201 – Published 8 November 2019
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Abstract

We present an experimental realization of single-shot nondestructive detection of ensembles of helium Rydberg atoms. We use the dispersive frequency shift of a superconducting microwave cavity interacting with the ensemble. By probing the transmission of the cavity, we determine the number of Rydberg atoms or the populations of Rydberg quantum states when the ensemble is prepared in a superposition. At the optimal microwave probe power, determined by the critical photon number, we reach single-shot detection of the atom number with 13% relative precision for ensembles of about 500 Rydberg atoms with a measurement backaction characterized by approximately 2% population transfer.

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  • Received 21 January 2019

DOI:https://doi.org/10.1103/PhysRevLett.123.193201

© 2019 American Physical Society

Physics Subject Headings (PhySH)

Atomic, Molecular & Optical

Authors & Affiliations

S. Garcia1,*,†, M. Stammeier1, J. Deiglmayr2,‡, F. Merkt2, and A. Wallraff1

  • 1Department of Physics, ETH Zürich, CH-8093 Zürich, Switzerland
  • 2Laboratorium für Physikalische Chemie, ETH Zürich, CH-8093 Zürich, Switzerland

  • *sebastien.garcia@college-de-france.fr
  • Present address: Institute of Physics, Collège de France, Paris, France.
  • Present address: University of Leipzig, Felix-Bloch Institut, Leipzig, Germany.

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Issue

Vol. 123, Iss. 19 — 8 November 2019

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