Universal set of scalable dynamically corrected gates for quantum error correction with always-on qubit couplings
Quantum Physics
2013-03-05 v1 Mesoscale and Nanoscale Physics
Superconductivity
Abstract
We construct a universal set of high fidelity quantum gates to be used on a sparse bipartite lattice with always-on Ising couplings. The gates are based on dynamical decoupling sequences using shaped pulses, they protect against low-frequency phase noise, and can be run in parallel on non-neighboring qubits. This makes them suitable for implementing quantum error correction with low-density parity check codes like the surface codes and their finite-rate generalizations. We illustrate the construction by simulating quantum Zeno effect with the toric code on a spin chain.
Cite
@article{arxiv.1209.2764,
title = {Universal set of scalable dynamically corrected gates for quantum error correction with always-on qubit couplings},
author = {Amrit De and Leonid P. Pryadko},
journal= {arXiv preprint arXiv:1209.2764},
year = {2013}
}