Phase-space theory for dispersive detectors of superconducting qubits

Details Phase-space theory for dispersive detectors of superconducting qubits Phase-space theory for dispersive detectors of superconducting qubits

2007-02-28

arxiv.org/abs/cond-mat/0703005v2

Phys. Rev. B 76, 104510 (2007)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

15 pages, 8 figures

Scientific paper

10.1103/PhysRevB.76.104510

Motivated by recent experiments, we study the dynamics of a qubit quadratically coupled to its detector, a damped harmonic oscillator. We use a complex-environment approach, explicitly describing the dynamics of the qubit and the oscillator by means of their full Floquet state master equations in phase-space. We investigate the backaction of the environment on the measured qubit and explore several measurement protocols, which include a long-term full read-out cycle as well as schemes based on short time transfer of information between qubit and oscillator. We also show that the pointer becomes measurable before all information in the qubit has been lost.

Affiliated with

Also associated with

No associations

Rating

Phase-space theory for dispersive detectors of superconducting 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 Phase-space theory for dispersive detectors of superconducting qubits, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Phase-space theory for dispersive detectors of superconducting qubits will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-119160