Ground-state characterization of Nb charge-phase Josephson qubits

Details Ground-state characterization of Nb charge-phase Josephson qubits Ground-state characterization of Nb charge-phase Josephson qubits

2006-01-10

arxiv.org/abs/cond-mat/0601199v2

Phys. Rev. B 73, 224527 (2006)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

8 pages, 8 figures

Scientific paper

10.1103/PhysRevB.73.224527

We present investigations of Josephson charge-phase qubits inductively coupled to a radio-frequency driven tank-circuit enabling the readout of the states by measuring the Josephson inductance of the qubit. The circuits including junctions with linear dimensions of 60 nm and 80 nm are fabricated from Nb trilayer and allowing the determination of relevant sample parameters at liquid helium temperature. The observed partial suppression of the circulating supercurrent at 4.2 K is explained in the framework of a quantum statistical model. We have probed the ground-state properties of qubit structures with different ratios of the Josephson coupling to Coulomb charging energy at 20 mK, demonstrating both the magnetic control of phase and the electrostatic control of charge on the qubit island.

Affiliated with

Also associated with

No associations

Rating

Ground-state characterization of Nb charge-phase Josephson qubits does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Ground-state characterization of Nb charge-phase Josephson qubits, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Ground-state characterization of Nb charge-phase Josephson qubits will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-215162