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Fast Spin-Orbit Qubit in an Indium Antimonide Nanowire

van den Berg, J. W. G. and Nadj-Perge, S. and Pribiag, V. S. and Plissard, S. R. and Bakkers, E. P. A. M. and Frolov, S. M. and Kouwenhoven, L. P. (2013) Fast Spin-Orbit Qubit in an Indium Antimonide Nanowire. Physical Review Letters, 110 (6). Art. No. 066806. ISSN 0031-9007. doi:10.1103/PhysRevLett.110.066806.

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Because of the strong spin-orbit interaction in indium antimonide, orbital motion and spin are no longer separated. This enables fast manipulation of qubit states by means of microwave electric fields. We report Rabi oscillation frequencies exceeding 100 MHz for spin-orbit qubits in InSb nanowires. Individual qubits can be selectively addressed due to intrinsic differences in their g factors. Based on Ramsey fringe measurements, we extract a coherence time T_2^*=8±1  ns at a driving frequency of 18.65 GHz. Applying a Hahn echo sequence extends this coherence time to 34 ns.

Item Type:Article
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URLURL TypeDescription Paper
Nadj-Perge, S.0000-0002-2916-360X
Additional Information:© 2013 American Physical Society. Received 13 October 2012; published 8 February 2013. We thank V. E. Calado and M. Shafiei for discussions. Financial support for this work was given by ERC and The Netherlands Organisation for Scientific Research NWO/FOM.
Funding AgencyGrant Number
European Research Council (ERC)UNSPECIFIED
Nederlandse Organisatie voor Wetenschappelijk Onderzoek (NWO)UNSPECIFIED
Stichting voor Fundamenteel Onderzoek der Materie (FOM)UNSPECIFIED
Issue or Number:6
Classification Code:PACS numbers: 73.63.Kv, 03.67.Lx, 85.35.Be
Record Number:CaltechAUTHORS:20160112-144541381
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Official Citation:Fast Spin-Orbit Qubit in an Indium Antimonide Nanowire J. W. G. van den Berg, S. Nadj-Perge, V. S. Pribiag, S. R. Plissard, E. P. A. M. Bakkers, S. M. Frolov, and L. P. Kouwenhoven Phys. Rev. Lett. 110, 066806 (2013) – Published 8 February 2013
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:63605
Deposited By: Ruth Sustaita
Deposited On:12 Jan 2016 23:10
Last Modified:10 Nov 2021 23:18

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