Robust charge-based qubit encoding

D K L Oi, S G Schirmer, A D Greentree, T M Stace

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Abstract

We propose a simple encoding of charge-based quantum dot qubits which protects against fluctuating electric fields by charge symmetry of the logical states. We analyze the reduction of coupling to noise due to nearby charge traps and present single qubit gates. The relative advantage of the encoding increases with lower charge trap density.

Original languageEnglish
Article number075348
Pages (from-to)-
Number of pages6
JournalPhysical Review B
Volume72
Issue number7
DOIs
Publication statusPublished - Aug 2005

Keywords

  • quantum computing
  • decoherence
  • suppression

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    Oi, D. K. L., Schirmer, S. G., Greentree, A. D., & Stace, T. M. (2005). Robust charge-based qubit encoding. Physical Review B, 72(7), -. [075348]. https://doi.org/10.1103/PhysRevB.72.075348