System and method for controlling superconducting qubits
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United States of America Patent
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Issued Date -
Jan 29, 2004
app pub date -
Dec 17, 2002
filing date -
Dec 18, 2001
priority date (Note) -
Abandoned
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Abstract
A system and method for controlling an information state of a superconducting qubit having a superconducting loop that includes a bulk loop portion, a mesoscopic island portion, and two Josephson junctions separating the bulk loop portion from the mesoscopic island portion is described. The method includes applying a bias across the mesoscopic island portion. In one embodiment, the method includes driving a bias current in the superconducting loop. In one embodiment, the method includes driving a bias current in the superconducting loop by coupling a magnetic flux into the superconducting loop. In one embodiment, the control system includes a tank circuit inductively coupled to the superconducting loop. In one embodiment, entanglement between qubits is provided by connections between qubits to be entangled.
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