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Superconducting Qubits
Open Quantum Systems Decoherence
Hysteresis and intermittency in a nano-bridge based suspended DC-SQUID
arXiv
Authors: Eran Segev, Oren Suchoi, Oleg Shtempluck, Fei Xue, Eyal Buks
Year
2010
Paper ID
10759
Status
Preprint
Abstract Read
~2 min
Abstract Words
89
Citations
N/A
Abstract
We study voltage response of nano-bridge based DC-SQUID fabricated on a Si_{3}N_{4} membrane. Such a configuration may help in reducing 1/f noise, which originates from substrate fluctuating defects. We find that the poor thermal coupling between the DC-SQUID and the substrate leads to strong hysteretic response of the SQUID, even though it is biased by an alternating current. In addition, when the DC-SQUID is biased near a threshold of spontaneous oscillations, the measured voltage has an intermittent pattern, which depends on the applied magnetic flux through the SQUID.
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- This paper contributes to the Superconducting Qubits research area in the Quantum Articles archive.
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- We study voltage response of nano-bridge based DC-SQUID fabricated on a Si_3N_4 membrane.
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