Superconducting low inductance qubit
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United States of America Patent
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Dec 27, 2005
Grant Date -
Apr 17, 2003
app pub date -
Aug 29, 2002
filing date -
Aug 29, 2001
priority date (Note) -
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Abstract
A superconducting structure that can operate, for example, as a qubit or a superconducting switch is presented. The structure includes a loop formed from two parts. A first part includes two superconducting materials separated by a junction. The junction can, for example, be a 45° grain boundary junction. The second part can couple the two superconducting materials across the junction. The second part includes a superconducting material coupled to each of the two superconducting materials of the first part through c-axis junctions. Further embodiments of the invention can be as a coherent unconventional superconducting switch, or a variable phase shift unconventional superconductor junction device.
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