Noise and the Measurement Process for a Circular Josephson Array Qubit

Details Noise and the Measurement Process for a Circular Josephson Array Qubit Noise and the Measurement Process for a Circular Josephson Array Qubit

2003-04-23

arxiv.org/abs/cond-mat/0304513v1

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

8 pages, 4 figures

Scientific paper

We discuss a charge qubit consisting of a circular array of Josephson junctions. The two-level system we consider couples the two charge states through a higher order tunneling process thus making it possible to achieve a long relaxation time. Using the spin-boson Hamiltonian, we estimate decoherence due to ohmic as well as 1/f noise. We simulate the quantum mechanical measurement process by studing the density matrix of the qubit and a capacitively coupled single-electron transistor that measures the charge.

Affiliated with

Also associated with

No associations

Rating

Noise and the Measurement Process for a Circular Josephson Array Qubit 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 Noise and the Measurement Process for a Circular Josephson Array Qubit, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Noise and the Measurement Process for a Circular Josephson Array Qubit will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-107785