Universal quantum computation with quantum-dot cellular automata in decoherence-free subspace

Z. Y. Xu; M. Fenga; Wei-Min Zhang

Universal quantum computation with quantum-dot cellular automata in decoherence-free subspace

Z. Y. Xu, M. Fenga, Wei-Min Zhang

物理學系

研究成果: Article › 同行評審

1 引文斯高帕斯（Scopus）

摘要

We investigate the possibility to have electron-pairs in decoherence-free subspace (DFS), by means of the quantum-dot cellular automata (QCA) and single-spin rotations, to deterministically carry out a universal quantum computation with high-fidelity. We show that our QCA device with electrons tunneling in two dimensions is very suitable for DFS encoding, and argue that our design favors a scalable quantum computation robust to collective dephasing errors.

原文	English
頁（從 - 到）	977-986
頁數	10
期刊	Quantum Information and Computation
卷	8
發行號	10
出版狀態	Published - 2008 十一月 1

All Science Journal Classification (ASJC) codes

Theoretical Computer Science
Statistical and Nonlinear Physics
Nuclear and High Energy Physics
Mathematical Physics
Physics and Astronomy(all)
Computational Theory and Mathematics

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