Echo Trains in Pulsed Electron Spin Resonance of a Strongly Coupled Spin Ensemble

Stefan Weichselbaumer, Matthias Zens, Christoph W. Zollitsch, Martin S. Brandt, Stefan Rotter, Rudolf Gross, and Hans Huebl
Phys. Rev. Lett. 125, 137701 – Published 22 September 2020
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Abstract

We report on a novel dynamical phenomenon in electron spin resonance experiments of phosphorus donors. When strongly coupling the paramagnetic ensemble to a superconducting lumped element resonator, the coherent exchange between these two subsystems leads to a train of periodic, self-stimulated echoes after a conventional Hahn echo pulse sequence. The presence of these multiecho signatures is explained using a simple model based on spins rotating on the Bloch sphere, backed up by numerical calculations using the inhomogeneous Tavis-Cummings Hamiltonian.

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  • Received 26 September 2018
  • Revised 15 July 2020
  • Accepted 5 August 2020

DOI:https://doi.org/10.1103/PhysRevLett.125.137701

© 2020 American Physical Society

Physics Subject Headings (PhySH)

Condensed Matter, Materials & Applied PhysicsQuantum Information, Science & Technology

Authors & Affiliations

Stefan Weichselbaumer1,2, Matthias Zens3,4, Christoph W. Zollitsch1,2,*, Martin S. Brandt5,2,6, Stefan Rotter3, Rudolf Gross1,2,6, and Hans Huebl1,2,6,†

  • 1Walther-Meißner-Institut, Bayerische Akademie der Wissenschaften, 85748 Garching, Germany
  • 2Physik-Department, Technische Universität München, 85748 Garching, Germany
  • 3Institute for Theoretical Physics, TU Wien, Wiedner Hauptstraße 8-10/136, 1040 Vienna, Austria
  • 4ITAMP, Harvard-Smithsonian Center for Astrophysics, Cambridge, Massachusetts 02138, USA
  • 5Walter Schottky Institut, Technische Universität München, 85748 Garching, Germany
  • 6Munich Center for Quantum Science and Technology (MCQST), Schellingstraße 4, 80799 München, Germany

  • *Present address: London Centre for Nanotechnology, University College London, London WC1H 0AH, United Kingdom.
  • hans.huebl@wmi.badw.de

See Also

Self-Stimulated Pulse Echo Trains from Inhomogeneously Broadened Spin Ensembles

Kamanasish Debnath, Gavin Dold, John J. L. Morton, and Klaus Mølmer
Phys. Rev. Lett. 125, 137702 (2020)

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Vol. 125, Iss. 13 — 25 September 2020

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