Mohammady, MH;
Morley, GW;
Monteiro, TS;
(2010)
Bismuth Qubits in Silicon: The Role of EPR Cancellation Resonances.
PHYS REV LETT
, 105
(6)
, Article 067602. 10.1103/PhysRevLett.105.067602.
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Abstract
We investigate electron paramagnetic resonance spectra of bismuth-doped silicon, at intermediate magnetic fields B similar or equal to 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.
Type: | Article |
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Title: | Bismuth Qubits in Silicon: The Role of EPR Cancellation Resonances |
Open access status: | An open access version is available from UCL Discovery |
DOI: | 10.1103/PhysRevLett.105.067602 |
Publisher version: | http://dx.doi.org/10.1103/PhysRevLett.105.067602 |
Language: | English |
Additional information: | © 2010 The American Physical Society |
Keywords: | NUCLEAR-SPIN |
UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Physics and Astronomy |
URI: | https://discovery.ucl.ac.uk/id/eprint/569359 |
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