Controlled phase gate for solid-state charge-qubit architectures

S G Schirmer, D K L Oi, A D Greentree

Research output: Contribution to journalArticlepeer-review

10 Citations (Scopus)
46 Downloads (Pure)


We describe a mechanism for realizing a controlled phase gate for solid-state charge qubits. By augmenting the positionally defined qubit with an auxiliary state, and changing the charge distribution in the three-dot system, we are able to effectively switch the Coulombic interaction, effecting an entangling gate. We consider two architectures, and numerically investigate their robustness to gate noise.

Original languageEnglish
Article number012325
Pages (from-to)-
Number of pages13
JournalPhysical Review A
Issue number1
Publication statusPublished - Jan 2005


  • quantum systems
  • silicon
  • solid-state charge qubits


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