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

Onderzoeksoutput: Bijdrage aan tijdschrift › Tijdschriftartikel › Academic › peer review

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

Originele taal-2	Engels
Artikelnummer	066806
Pagina's (van-tot)	1-6
Aantal pagina's	5
Tijdschrift	Physical Review Letters
Volume	110
Nummer van het tijdschrift	6
DOI's	https://doi.org/10.1103/PhysRevLett.110.066806
Status	Gepubliceerd - 2013

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10.1103/PhysRevLett.110.066806

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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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AB - 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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Fast spin-orbit qubit in an indium antimonide nanowire

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