Looping on the Bloch sphere: Oscillatory effects in dephasing of qubits subject to broad-spectrum noise

Details Looping on the Bloch sphere: Oscillatory effects in dephasing of qubits subject to broad-spectrum noise Looping on the Bloch sphere: Oscillatory effects in dephasing of qubits subject to broad-spectrum noise

2009-07-02

arxiv.org/abs/0907.0463v3

PRA 81, 010103(R) (2010)

Physics

Quantum Physics

4 pages, 3 figures

Scientific paper

For many implementations of quantum computing, 1/f and other types of broad-spectrum noise are an important source of decoherence. An important step forward would be the ability to back out the characteristics of this noise from qubit measurements and to see if it leads to new physical effects. For certain types of qubits, the working point of the qubit can be varied. Using a new mathematical method that is suited to treat all working points, we present theoretical results that show how this degree of freedom can be used to extract noise parameters and to predict a new effect: noise-induced looping on the Bloch sphere. We analyze data on superconducting qubits to show that they are very near the parameter regime where this looping should be observed.

Affiliated with

Also associated with

No associations

Rating

Looping on the Bloch sphere: Oscillatory effects in dephasing of qubits subject to broad-spectrum noise 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 Looping on the Bloch sphere: Oscillatory effects in dephasing of qubits subject to broad-spectrum noise, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Looping on the Bloch sphere: Oscillatory effects in dephasing of qubits subject to broad-spectrum noise will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-730864