CaltechAUTHORS
Published February 8, 2013 | Version Submitted + Published
Journal Article Open

Fast Spin-Orbit Qubit in an Indium Antimonide Nanowire

Creators

  • 1. ROR icon Delft University of Technology
  • 2. ROR icon Eindhoven University of Technology

Abstract

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.

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.

Attached Files

Published - PhysRevLett.110.066806.pdf

Submitted - 1210.7229v1.pdf

Files

1210.7229v1.pdf

Files (4.4 MB)

Name Size
md5:13ef6ac343c0c8f0798bde31e637b722
3.8 MB Preview Download
md5:4b03e9ea46ee737e44d47eba00603d84
507.9 kB Preview Download

Additional details

Identifiers

Eprint ID
63605
Resolver ID
CaltechAUTHORS:20160112-144541381

Related works

Describes
http://arxiv.org/abs/1210.7229 (URL)

Funding

European Research Council (ERC)
Nederlandse Organisatie voor Wetenschappelijk Onderzoek (NWO)
Stichting voor Fundamenteel Onderzoek der Materie (FOM)

Dates

Created
2016-01-12
Created from EPrint's datestamp field
Updated
2023-03-15
Created from EPrint's last_modified field