Radio-frequency method for investigation of quantum properties of superconducting structures.
Il’ichev, E.
;
Smirnov, A.Yu.
;
Grajcar, M.
;
Izmalkov, A.
;
Born, D.
;
Oukhanski, N.
;
Wagner, Th.
;
Krech, W.
;
Meyer, H.-G.
;
Zagoskin, A.
Тема:
Сверхпроводимость и мезоскопические структуры
Інший ID:
PACS: 74.50.+r, 85.25.–j
Посилання:
Radio-frequency method for investigation of quantum properties of superconducting structures. / E. Il’ichev, A.Yu. Smirnov, M. Grajcar, A. Izmalkov, D. Born, N. Oukhanski, Th. Wagner, W. Krech, H.-G. Meyer, and A. Zagoskin // Физика низких температур. — 2004. — Т. 30, № 7-8. — С. 823-833. — Бібліогр.: 38 назв. — англ.
Підтримка:
We are grateful to our colleagues M.H.S. Amin,
Ya.S. Greenberg, H.E. Hoenig, U. Hübner, A. Maassen
van den Brink, T. May, V.I. Shnyrkov, and I.N.
Zhilyaev for their help and contribution to this work
on different stages.
Helpful discussions with D.V. Averin, G. Blatter,
M. Feigel’man, M.V. Fistul, V.B. Geshkenbein, A.J.
Leggett, Yu. Makhlin, A.N. Omelyanchouk, A. Shnirman,
P.C.E. Stamp, S. Uchaikin, A.V. Ustinov, A.D.
Zaikin, and A.B. Zorin are gratefully acknowledged.
Дата:
2004
Переглядів:
833
Завантажень:
479
Анотація:
We implement the impedance measurement technique (IMT) for characterization of interferometer-
type superconducting qubits. In the framework of this method, the interferometer loop is inductively
coupled to a high-quality tank circuit. We show that the IMT is a powerful tool to study
a response of externally controlled two-level system to different types of excitations. Conclusive
information about qubits is obtained from the read-out of the tank properties.
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