Dynamic behavior of Josephson-junction qubits: crossover between Rabi oscillations and Landau-Zener transitions

Автор(и)

  • S.N. Shevchenko B. Verkin Institute for Low Temperature Physics and Engineering of the National Academy of Sciences of Ukraine, 47 Lenin Ave., Kharkov 61103, Ukraine
  • A.S. Kiyko B. Verkin Institute for Low Temperature Physics and Engineering of the National Academy of Sciences of Ukraine, 47 Lenin Ave., Kharkov 61103, Ukraine
  • A.N. Omelyanchouk B. Verkin Institute for Low Temperature Physics and Engineering of the National Academy of Sciences of Ukraine, 47 Lenin Ave., Kharkov 61103, Ukraine
  • W. Krech Friedrich Schiller University, Institute for Solid State Physics Helmholtzweg 5, D-07743 Jena, Germany

DOI (Low Temperature Physics):


https://doi.org/10.1063/1.2001634

Ключові слова:

PACS: 03.67.Lx, 03.75.Lm, 74.50. r, 85.25.Am

Анотація

We study the dynamic behavior of a quantum two-level system with periodically varying parameters by solving numerically the master equation for the density matrix. Two limiting cases are considered: multiphoton Rabi oscillations and Landau–Zener transitions. The approach is applied to the description of the dynamics of superconducting qubits. In particular, the case of the interferometer-type charge qubit with periodically varying parameters (gate voltage or magnetic flux) is investigated. The time-averaged energy level populations are calculated as functions of the qubit`s control parameters.

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Опубліковано

2005-05-23

Як цитувати

(1)
S.N. Shevchenko, A.S. Kiyko, A.N. Omelyanchouk, and W. Krech, Dynamic behavior of Josephson-junction qubits: crossover between Rabi oscillations and Landau-Zener transitions, Low Temp. Phys. 31, (2005) [Fiz. Nizk. Temp. 31, 752-760, (2005)] DOI: https://doi.org/10.1063/1.2001634.

Номер

Том 31 № 7 (2005)

Розділ

Надпровідність, зокрема високотемпературна

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