Fast spin-orbit qubit in an indium antimonide nanowire

J.W.G. Berg; S. Nadj-Perge; V.S. Pribiag; S.R. Plissard; E.P.A.M. Bakkers; S.M. Frolov; L.P. Kouwenhoven

doi:10.1103/PhysRevLett.110.066806

Fast spin-orbit qubit in an indium antimonide nanowire

J.W.G. Berg, S. Nadj-Perge, V.S. Pribiag, S.R. Plissard, E.P.A.M. Bakkers, S.M. Frolov, L.P. Kouwenhoven

Photonics and Semiconductor Nanophysics

Research output: Contribution to journal › Article › Academic › peer-review

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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 T2*=8±1¿¿ns at a driving frequency of 18.65 GHz. Applying a Hahn echo sequence extends this coherence time to 34 ns

Original language	English
Article number	066806
Pages (from-to)	1-6
Number of pages	5
Journal	Physical Review Letters
Volume	110
Issue number	6
DOIs	https://doi.org/10.1103/PhysRevLett.110.066806
Publication status	Published - 2013

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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 T2*=8±1¿¿ns at a driving frequency of 18.65 GHz. Applying a Hahn echo sequence extends this coherence time to 34 ns",

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AU - Bakkers, E.P.A.M.

AU - Frolov, S.M.

AU - Kouwenhoven, L.P.

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Fast spin-orbit qubit in an indium antimonide nanowire

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