Fidelity and quantum chaos in the mesoscopic device for the Josephson flux qubit

Details Fidelity and quantum chaos in the mesoscopic device for the Josephson flux qubit Fidelity and quantum chaos in the mesoscopic device for the Josephson flux qubit

2006-01-31

arxiv.org/abs/cond-mat/0601698v3

Phys. Rev. Lett. 98, 057006 (2007)

Physics

Condensed Matter

Superconductivity

Accepted for publication in Phys. Rev. Lett. (4 pages, 4 figures, final version.)

Scientific paper

10.1103/PhysRevLett.98.057006

We show that the three-junction SQUID device designed for the Josephson flux qubit can be used to study the dynamics of quantum chaos when operated at high energies. We determine the parameter region where the system is classically chaotic. We calculate numerically the fidelity or Loschmidt echo (LE) in the quantum dynamics under perturbations in the magnetic field and in the critical currents, and study different regimes of the LE. We discuss how the LE could be observed experimentally considering both the preparation of the initial state and the measurement procedure.

Affiliated with

Also associated with

No associations

Rating

Fidelity and quantum chaos in the mesoscopic device for the Josephson flux 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 Fidelity and quantum chaos in the mesoscopic device for the Josephson flux qubit, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Fidelity and quantum chaos in the mesoscopic device for the Josephson flux qubit will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-354148