6th order robust pulses for quantum control

Details 6th order robust pulses for quantum control 6th order robust pulses for quantum control

2004-04-22

arxiv.org/abs/quant-ph/0404127v5

Physics

Quantum Physics

Changes made to last section and references;5 pages;Figure added;Accepted in PRA

Scientific paper

10.1103/PhysRevA.71.012327

Composite pulse sequences designed for nuclear magnetic resonance experiments are currently being applied in many quantum information processing technologies.We present an analysis of a family of composite pulse sequences used to address systematic pulse-length errors in the execution of quantum gates. It has been demonstrated by Cummins et al. [Phys. Rev. A 67, 042308 (2003)] that for this family of composite pulse sequences, the fidelity of the resulting unitary operation compared with the ideal unitary operation is 1+C*epsilon^6, where epsilon is the fractional error in the length of the pulse. We derive an exact expression for the 6th order coefficient, C, and from this deduce conditions under which this 6th order dependance is observed. We also present new pulse sequences which achieve the same fidelity.

Affiliated with

Also associated with

No associations

Rating

6th order robust pulses for quantum control 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 6th order robust pulses for quantum control, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and 6th order robust pulses for quantum control will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-662253