Continuous Quantum Error Correction Through Local Operations

Details Continuous Quantum Error Correction Through Local Operations Continuous Quantum Error Correction Through Local Operations

2010-09-24

arxiv.org/abs/1009.4744v1

Phys. Rev. A 82, 032327 (2010)

Physics

Quantum Physics

Accepted for publication in Phys. Rev. A

Scientific paper

10.1103/PhysRevA.82.032327

We propose local strategies to protect global quantum information. The protocols, which are quantum error correcting codes for dissipative systems, are based on environment measurements, direct feedback control and simple encoding of the logical qubits into physical qutrits whose decaying transitions are indistinguishable and equally probable. The simple addition of one extra level in the description of the subsystems allows for local actions to fully and deterministically protect global resources, such as entanglement. We present codes for both quantum jump and quantum state diffusion measurement strategies and test them against several sources of inefficiency. The use of qutrits in information protocols suggests further characterization of qutrit-qutrit disentanglement dynamics, which we also give together with simple local environment measurement schemes able to prevent distillability sudden death and even enhance entanglement in situations in which our feedback error correction is not possible.

Affiliated with

Also associated with

No associations

Rating

Continuous Quantum Error Correction Through Local Operations 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 Continuous Quantum Error Correction Through Local Operations, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Continuous Quantum Error Correction Through Local Operations will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-273774