Minimal qudit code for a qubit in the phase-damping channel
arXiv:0705.1099 · doi:10.1103/PhysRevA.77.032309
Abstract
Using the stabilizer formalism we construct the minimal code into a D-dimensional Hilbert space (qudit) to protect a qubit against phase damping. The effectiveness of this code is then studied by means of input-output fidelity.
9 pages, 3 figures. REVTeX