High-cooperativity coupling of electron-spin ensembles to superconducting cavities.
Schuster, DI, Sears, AP, Ginossar, E, DiCarlo, L, Frunzio, L, Morton, JJ, Wu, H, Briggs, GA, Buckley, BB and Awschalom, DD (2010) High-cooperativity coupling of electron-spin ensembles to superconducting cavities. Phys Rev Lett, 105 (14). ISSN 0031-9007
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Official URL: http://dx.doi.org/10.1103/PhysRevLett.105.140501
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:Cr(3+)) at millikelvin temperatures and low powers, using an on-chip feedline. In addition, we observe hyperfine structure in diamond P1 centers.
|Additional Information:||Copyright 2010 The American Physical Society.|
|Divisions:||Faculty of Engineering and Physical Sciences > Physics|
|Deposited By:||Symplectic Elements|
|Deposited On:||09 Dec 2011 16:52|
|Last Modified:||11 May 2013 14:39|
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