Tunneling spectroscopy using a probe qubit

A. J. Berkley, A. J. Przybysz, T. Lanting, R. Harris, N. Dickson, F. Altomare, M. H. Amin, P. Bunyk, C. Enderud, E. Hoskinson, M. W. Johnson, E. Ladizinsky, R. Neufeld, C. Rich, A. Yu Smirnov, E. Tolkacheva, S. Uchaikin, A. B. Wilson

Результат исследований: Материалы для журналаСтатья

25 Цитирования (Scopus)

Аннотация

We describe a quantum tunneling spectroscopy technique that requires only low-bandwidth control. The method involves coupling a probe qubit to the system under study to create a localized probe state. The energy of the probe state is then scanned with respect to the unperturbed energy levels of the probed system. Incoherent tunneling transitions that flip the state of the probe qubit occur when the energy bias of the probe is close to an eigenenergy of the probed system. Monitoring these transitions allows the reconstruction of the probed system eigenspectrum. We demonstrate this method on an rf SQUID flux qubit.

Язык оригиналаАнглийский
Номер статьи020502
ЖурналPhysical Review B - Condensed Matter and Materials Physics
Том87
Номер выпуска2
DOI
СостояниеОпубликовано - 3 янв 2013

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Electronic, Optical and Magnetic Materials

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  • Цитировать

    Berkley, A. J., Przybysz, A. J., Lanting, T., Harris, R., Dickson, N., Altomare, F., Amin, M. H., Bunyk, P., Enderud, C., Hoskinson, E., Johnson, M. W., Ladizinsky, E., Neufeld, R., Rich, C., Smirnov, A. Y., Tolkacheva, E., Uchaikin, S., & Wilson, A. B. (2013). Tunneling spectroscopy using a probe qubit. Physical Review B - Condensed Matter and Materials Physics, 87(2), [020502]. https://doi.org/10.1103/PhysRevB.87.020502