Quantum Error-Correcting Codes for Qudit Amplitude Damping
Abstract
Traditional quantum error-correcting codes are designed for the depolarizing channel modeled by generalized Pauli errors occurring with equal probability. Amplitude damping channels model, in general, the decay process of a multilevel atom or energy dissipation of a bosonic system at zero temperature. We discuss quantum error-correcting codes adapted to amplitude damping channels for higher dimensional systems (qudits). For multi-level atoms, we consider a natural kind of decay process, and for bosonic systems,we consider the qudit amplitude damping channel obtained by truncating the Fock basis of the bosonic modes to a certain maximum occupation number. We construct families of single-error-correcting quantum codes that can be used for both cases. Our codes have larger code dimensions than the previously known single-error-correcting codes of the same lengths. Additionally, we present families of multi-error correcting codes for these two channels, as well as generalizations of our construction technique to error-correcting codes for the qutrit and channels.
Cite
@article{arxiv.1509.06829,
title = {Quantum Error-Correcting Codes for Qudit Amplitude Damping},
author = {Markus Grassl and Linghang Kong and Zhaohui Wei and Zhang-Qi Yin and Bei Zeng},
journal= {arXiv preprint arXiv:1509.06829},
year = {2018}
}
Comments
22 pages, 3 figures, Part of this work was presented at the 2014 IEEE Symposium on Information Information Theory