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Bismuth qubits in silicon : the role of EPR cancellation resonances
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Mohammady, M., Morley, Gavin and Monteiro, T. (2010) Bismuth qubits in silicon : the role of EPR cancellation resonances. Physical Review Letters, Vol.105 (No.6). 067602-1. doi:10.1103/PhysRevLett.105.067602 ISSN 0031-9007.
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Official URL: http://dx.doi.org/10.1103/PhysRevLett.105.067602
Abstract
We investigate electron paramagnetic resonance spectra of bismuth-doped silicon, at intermediate magnetic fields B≃0.1–0.6 T, theoretically and experimentally (with 9.7 GHz X-band spectra). We identify a previously unexplored regime of “cancellation resonances,” where a component of the hyperfine coupling is resonant with the external field. We show that this regime has experimentally accessible consequences for quantum information applications, such as reduction of decoherence, fast manipulation of the coupled electron-nuclear qubits, and spectral line narrowing.
| Item Type: | Journal Article | ||||
|---|---|---|---|---|---|
| Subjects: | Q Science > QC Physics Q Science > QD Chemistry |
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| Divisions: | Faculty of Science, Engineering and Medicine > Science > Physics | ||||
| Library of Congress Subject Headings (LCSH): | Silicon, Electron paramagnetic resonance, Bismuth | ||||
| Journal or Publication Title: | Physical Review Letters | ||||
| Publisher: | American Physical Society | ||||
| ISSN: | 0031-9007 | ||||
| Official Date: | 6 August 2010 | ||||
| Dates: |
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| Volume: | Vol.105 | ||||
| Number: | No.6 | ||||
| Page Range: | 067602-1 | ||||
| DOI: | 10.1103/PhysRevLett.105.067602 | ||||
| Status: | Peer Reviewed | ||||
| Publication Status: | Published | ||||
| Access rights to Published version: | Restricted or Subscription Access |
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