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

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

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

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.

Original languageEnglish
Pages (from-to)977-986
Number of pages10
JournalQuantum Information and Computation
Volume8
Issue number10
Publication statusPublished - 2008 Nov 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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