• Featured in Physics
  • Editors' Suggestion

High-Cooperativity Coupling of Electron-Spin Ensembles to Superconducting Cavities

D. I. Schuster, A. P. Sears, E. Ginossar, L. DiCarlo, L. Frunzio, J. J. L. Morton, H. Wu, G. A. D. Briggs, B. B. Buckley, D. D. Awschalom, and R. J. Schoelkopf
Phys. Rev. Lett. 105, 140501 – Published 27 September 2010
Physics logo See Viewpoint: Towards superconductor-spin ensemble hybrid quantum systems

Abstract

Electron spins in solids are promising candidates for quantum memories for superconducting qubits because they can have long coherence times, large collective couplings, and many qubits could be encoded into spin waves of a single ensemble. We demonstrate the coupling of electron-spin ensembles to a superconducting transmission-line cavity at strengths greatly exceeding the cavity decay rates and comparable to the spin linewidths. We also perform broadband spectroscopy of ruby (Al2O3:Cr3+) at millikelvin temperatures and low powers, using an on-chip feedline. In addition, we observe hyperfine structure in diamond P1 centers.

  • Figure
  • Figure
  • Figure
  • Received 18 June 2010

DOI:https://doi.org/10.1103/PhysRevLett.105.140501

© 2010 The American Physical Society

Viewpoint

Key Image

Towards superconductor-spin ensemble hybrid quantum systems

Published 27 September 2010

Ensembles of dilute spin impurities in condensed matter systems can be accessed using microelectronic circuits and therefore may offer a way for long-term storage and enhanced processing of quantum information.

See more in Physics

Authors & Affiliations

D. I. Schuster1, A. P. Sears1, E. Ginossar1, L. DiCarlo1, L. Frunzio1, J. J. L. Morton2, H. Wu2, G. A. D. Briggs2, B. B. Buckley3, D. D. Awschalom3, and R. J. Schoelkopf1

  • 1Department of Applied Physics and Physics, Yale University, New Haven, Connecticut 06511, USA
  • 2Department of Materials, University of Oxford, Oxford OX1 3PH, United Kingdom
  • 3Center for Spintronics and Quantum Computation, University of California, Santa Barbara, California 93106, USA

See Also

Strong Coupling of a Spin Ensemble to a Superconducting Resonator

Y. Kubo, F. R. Ong, P. Bertet, D. Vion, V. Jacques, D. Zheng, A. Dréau, J.-F. Roch, A. Auffeves, F. Jelezko, J. Wrachtrup, M. F. Barthe, P. Bergonzo, and D. Esteve
Phys. Rev. Lett. 105, 140502 (2010)

Storage of Multiple Coherent Microwave Excitations in an Electron Spin Ensemble

Hua Wu, Richard E. George, Janus H. Wesenberg, Klaus Mølmer, David I. Schuster, Robert J. Schoelkopf, Kohei M. Itoh, Arzhang Ardavan, John J. L. Morton, and G. Andrew D. Briggs
Phys. Rev. Lett. 105, 140503 (2010)

Article Text (Subscription Required)

Click to Expand

References (Subscription Required)

Click to Expand
Issue

Vol. 105, Iss. 14 — 1 October 2010

Reuse & Permissions
Access Options
Author publication services for translation and copyediting assistance advertisement

Authorization Required


×
×

Images

×

Sign up to receive regular email alerts from Physical Review Letters

Log In

Cancel
×

Search


Article Lookup

Paste a citation or DOI

Enter a citation
×