Characterization of Spin-Lattice Relaxation Times of Impurity Centers in Diamond with Superconducting Circuits

ORAL

Abstract

We present measurements of the T$_1$ relaxation times of impurity centers in diamond below 4 K obtained with both a nanobridge SQUID magnetometer and a superconducting resonator with an independent broadband excitation line. We show temperature, field and power dependence of the P1 center relaxation times, and discuss how these dependences fit within current models of spin-lattice relaxation and spin diffusion. These measurements are a step toward identifying the dominant spin-lattice relaxation processes in diamond at cryogenic temperatures, and optimizing such solid-state devices for quantum information processing.

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Authors

  • N. Antler

    QNL, UC Berkeley

  • Shay Hacohen-Gourgy

    QNL, UC Berkeley, QNL, University of California, Berkeley

  • D. Toyli

    QNL, University of California, Berkeley, QNL, UC Berkeley

  • E. Levenson-Falk

    QNL, UC Berkeley

  • A. Jarmola

    Dept. of Physics, UC Berkeley

  • P. Kehayias

    Dept. of Physics, UC Berkeley

  • D. Budker

    Dept. of Physics, UC Berkeley

  • Irfan Siddiqi

    QNL, University of California, Berkeley, University of California, Berkeley, QNL, UC Berkeley, Quantum Nanoelectronics Laboratory, Department of Physics, University of California, Berkeley