TITLE

Non-adiabatic phenomena in a coupled SQUID ring-tank circuit system in the strongly hysteretic regime

AUTHOR(S)
Prance, H.; Whiteman, R.; Prance, R. J.; Clark, T. D.; Ralph, J. F.; Scho¨llmann, V.; Everitt, M.; Al-Khawaja, S.
PUB. DATE
February 2000
SOURCE
AIP Conference Proceedings;2000, Vol. 502 Issue 1, p575
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
In this paper we consider new and remarkable dynamical behavior displayed by a strongly hysteretic SQUID (Superconducting QUantum Interference device)-a single Josephson weak link enclosed by a thick superconducting ring inductively coupled to a radio frequency (rf) parallel LC tank circuit resonator. Experimentally, we show that in the strongly hysteretic regime this coupled system can display remarkable level structure in its dynamics, quite different to that normally associated with rf driven SQUID ring systems. We demonstrate theoretically that this level structure arises when the SQUID ring responds non-adiabatically to time dependent changes in its potential, i.e. so that the ring no longer stays at or very close to the minimum in this potential as it changes in time. © 2000 American Institute of Physics.
ACCESSION #
6028500

 

Related Articles

  • Radio frequency SQUIDs operating at 77 K with 1 GHz lumped-element tank circuits. He, D. F.; Zeng, X. H.; Krause, H.-J.; Soltner, H.; Ru¨ders, F.; Zhang, Y. // Applied Physics Letters;2/23/1998, Vol. 72 Issue 8 

    Examines the operation of a radio frequency (rf) superconducting quantum interference device (SQUID) with a lumped-element tank circuit. Development of a matching scheme; Characterization of the noise of high-temperature rf SQUIDs; Stabilization against high frequency disturbances.

  • Measurements of 1/f noise in Josephson junctions at zero voltage: Implications for decoherence in superconducting quantum bits. Mück, Michael; Korn, Matthias; Mugford, C. G. A.; Kycia, J. B.; Clarke, John // Applied Physics Letters;1/3/2005, Vol. 86 Issue 1, p012510 

    Critical current fluctuations with a 1/f spectral density (f is frequency) are potentially a limiting source of intrinsic decoherence in superconducting quantum bits (qubits) based on Josephson tunnel junctions. Prior measurements of this noise were made at nonzero voltages whereas qubits are...

  • Qubit dispersive readout scheme with a microstrip superconducting quantum interference device amplifier. Michotte, S. // Applied Physics Letters;3/23/2009, Vol. 94 Issue 12, p122512 

    A flux qubit readout scheme involving a dispersive technique coupled to a microstrip superconducting quantum interference device (SQUID) amplifier has been tested experimentally. Thanks to the almost quantum limited noise of this amplifier at low temperature, this readout device is very...

  • Store-restore operation of flux quanta in coplanar type high Tc superconductive quantum... Fuke, Hiroyuki; Saitoh, Kazuo; Utagawa, Tadashi; Enomoto, Youichi // Journal of Applied Physics;9/1/1998, Vol. 84 Issue 5, p2949 

    Presents a study of a store-restore operation of flux quanta for a superconductive quantum interference device (SQUID). Fundamental properties of the store-restore operation; Fabrication of Josephson junctions; Advantages of the fabrication.

  • Effect of capacitive feedback on the characteristics of direct current superconducting quantum... Minotani, T.; Enpuku, K. // Journal of Applied Physics;7/1/1997, Vol. 82 Issue 1, p457 

    Studies the distortion of voltage versus flux relations of a dc superconducting quantum interference device (SQUID) coupled to a multiple input coil. Resonant characteristics; Effect of capacitive feedback; Analytical results; Simulation results; Comparison with experimental results.

  • SQUIDs cross a watershed. Clarke, John // Nature;12/8/1994, Vol. 372 Issue 6506, p501 

    Discusses the use of superconducting quantum interference devices (SQUID) in geophysics, magnetocardiology and magnetoencephalography. Categories; Capacity; Future applications.

  • Coherence length in quantum interference devices having periodic potential. Tsubaki, Kotaro; Tokura, Yasuhiro // Applied Physics Letters;9/5/1988, Vol. 53 Issue 10, p859 

    A measurement of coherence length in the quantum interference device using drain current oscillation is proposed. The coherence length for a quantum interference device, called the washboard transistor, is measured by the proposed method. The merit of this method is that the quantitative value...

  • Self-organization of the critical state in a chain of SQUIDs. Ginzburg, S. L.; Savitskaya, N. E. // JETP Letters;11/10/98, Vol. 68 Issue 9, p719 

    The critical state of a 1D granular superconductor (modeled as a chain of SQUIDs or, in other words, a 1D Josephson-junction array) is studied on the basis of a system of differential equations for the gauge-invariant phase difference. It is established that the critical state is self-organized....

  • Magnetic imaging of YBCO on RABiTS using a squid microscope. Nielsen, A. P.; Kerchner, H. R.; Lobb, C. J.; Barbara, P. // AIP Conference Proceedings;2002, Vol. 614 Issue 1, p1134 

    Using a scanning SQUID microscope we have magnetically imaged YBCO films grown upon Rolling-Assisted Biaxial Textured Substrates (RABiTS). The measurements clearly show a strong (about 3 Oe) and non-uniform spontaneous magnetization due to the Ni-based substrate. The YBCO film on a ferromagnetic...

Share

Read the Article

Courtesy of VIRGINIA BEACH PUBLIC LIBRARY AND SYSTEM

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics