Surface Code Threshold in the Presence of Correlated Errors
Quantum Physics
2013-01-10 v2 Statistical Mechanics
Strongly Correlated Electrons
Abstract
We study the fidelity of the surface code in the presence of correlated errors induced by the coupling of physical qubits to a bosonic environment. By mapping the time evolution of the system after one quantum error correction cycle onto a statistical spin model, we show that the existence of an error threshold is related to the appearance of an order-disorder phase transition in the statistical model in the thermodynamic limit. This allows us to relate the error threshold to bath parameters and to the spatial range of the correlated errors.
Cite
@article{arxiv.1209.2157,
title = {Surface Code Threshold in the Presence of Correlated Errors},
author = {E. Novais and Eduardo R. Mucciolo},
journal= {arXiv preprint arXiv:1209.2157},
year = {2013}
}
Comments
5 pages, 2 figures