Phys. Rev. B 67, 100508(R) (2003) [4 pages]Josephson-phase qubit without tunneling
We show that a complete set of one-bit gates can be realized by coupling the two logical states of a phase qubit to a third level (at higher energy) using microwave pulses. Thus, one can achieve coherent control without invoking any tunneling between the qubit levels. We propose two implementations, using rf-SQUIDs and d-wave Josephson junctions. © 2003 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevB.67.100508
DOI:
10.1103/PhysRevB.67.100508
PACS:
03.67.Lx, 85.25.Cp, 85.25.Dq, 74.72.-h
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