Efficient purification protocols using iSWAP gates in solid-state qubits
Quantum Physics
2014-01-08 v1
Abstract
We show an efficient purification protocol in solid-state qubits by replacing the usual bilateral CNOT gate by the bilateral iSWAP gate. We also show that this replacement can be applied to breeding and hashing protocols, which are useful for quantum state purification. These replacements reduce the number of fragile and cumbersome two-qubit operations, making more feasible quantum-information-processing with solid-state qubits. As examples, we also present quantitative analyses for the required time to perform state purification using either superconducting or semiconducting qubits.
Keywords
Cite
@article{arxiv.0807.4788,
title = {Efficient purification protocols using iSWAP gates in solid-state qubits},
author = {Tetsufumi Tanamoto and Koji Maruyama and Yu-xi Liu and Xuedong Hu and Franco Nori},
journal= {arXiv preprint arXiv:0807.4788},
year = {2014}
}
Comments
10 pages, 5 figures