Fast, low-power manipulation of spin ensembles in superconducting microresonators

Fast, low-power manipulation of spin ensembles in superconducting microresonators

We demonstrate the use of high-Q superconducting coplanar waveguide (CPW) microresonators to perform rapid manipulations on a randomly distributed spin ensemble using very low microwave power (400 nW). This power is compatible with dilution refrigerators, making microwave manipulation of spin ensemb...

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Veröffentlicht in:Applied physics letters 2014-06, Vol.104 (22)
Hauptverfasser: Sigillito, A. J., Malissa, H., Tyryshkin, A. M., Riemann, H., Abrosimov, N. V., Becker, P., Pohl, H.-J., Thewalt, M. L. W., Itoh, K. M., Morton, J. J. L., Houck, A. A., Schuster, D. I., Lyon, S. A.
Format: Artikel
Sprache:eng
Schlagworte:
Applied physics
CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS
Coplanar waveguides
DILUTION
MAGNETIC FIELDS
MICROSTRUCTURE
MICROWAVE RADIATION
PULSES
QUANTUM COMPUTERS
Quantum computing
RANDOMNESS
Refrigerators
RESONATORS
SENSITIVITY
Signal averaging
SPIN
SUPERCONDUCTING DEVICES
Superconductivity
WAVEGUIDES
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Zusammenfassung:We demonstrate the use of high-Q superconducting coplanar waveguide (CPW) microresonators to perform rapid manipulations on a randomly distributed spin ensemble using very low microwave power (400 nW). This power is compatible with dilution refrigerators, making microwave manipulation of spin ensembles feasible for quantum computing applications. We also describe the use of adiabatic microwave pulses to overcome microwave magnetic field (B1) inhomogeneities inherent to CPW resonators. This allows for uniform control over a randomly distributed spin ensemble. Sensitivity data are reported showing a single shot (no signal averaging) sensitivity to 107 spins or 3×104spins/Hz with averaging.
ISSN:0003-6951
1077-3118
DOI:10.1063/1.4881613