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  Characterization of superconducting structures designed for qubit realizations

Il'ichev, E., Wagner, T., Fritzsch, L., Kunert, J., Schultze, V., May, T., et al. (2002). Characterization of superconducting structures designed for qubit realizations. Applied Physics Letters, 80(22), 4184-4186. Retrieved from http://ojps.aip.org/getabs/servlet/GetabsServlet?prog=normal&id=APPLAB000080000022004184000001&idtype=cvips&gifs=Yes.

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 Creators:
Il'ichev, E., Author
Wagner, T., Author
Fritzsch, L., Author
Kunert, J., Author
Schultze, V., Author
May, T., Author
Hoenig, H. E., Author
Meyer, H. G., Author
Grajcar, M., Author
Born, D., Author
Krech, W., Author
Fistul, M. V.1, Author              
Zagoskin, A. M., Author
Affiliations:
1Max Planck Institute for the Physics of Complex Systems, Max Planck Society, ou_2117288              

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 MPIPKS: Superconductivity and magnetism
 Abstract: We implement the impedance measurement technique in order to characterize superconducting structures designed for applications in quantum computing. We report an experimental study of the circuit consisting of three small Josephson junctions incorporated in a low-inductance superconducting loop. Measurements of the circuit response to an applied weak ac bias as a function of the external magnetic flux phi(e) yield complete information on the properties of the circuit. We found that the system displays two metastable states. From experimental data, we have determined the magnetic field dependent Josephson energy U(phi(e)) of these states, the potential barrier DeltaU between these states, as well as the difference of the critical currents of the junction in the loop. (C) 2002 American Institute of Physics.

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Language(s): eng - English
 Dates: 2002-06-01
 Publication Status: Published in print
 Pages: -
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 Table of Contents: -
 Rev. Type: Peer
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Title: Applied Physics Letters
  Alternative Title : Appl. Phys. Lett.
Source Genre: Journal
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Publ. Info: -
Pages: - Volume / Issue: 80 (22) Sequence Number: - Start / End Page: 4184 - 4186 Identifier: ISSN: 0003-6951