A minimum control ancilla driven quantum computation scheme with repeat-until-success style gate generation

Kerem Halil-Shah, Daniel K. L. Oi

Research output: Working paper

Abstract

Some two qubit interactions are singly sufficient for universal quantum computation but not without the use of an ancilla. Recent schemes for universal quantum computation have focused on hybrid physical systems using ancillae. In them, the application of resources is shifted to the ancilla system. We consider which 2-qubit interactions are universal in ancilla schemes where direct connections between main register qubits are forbidden. By the use of ancilla driven operations and repeat-until-success style random gates, a single fixed symmetric gate can be universal be control of the number of repetitions alone.
LanguageEnglish
Publication statusPublished - 30 Jan 2014

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quantum computation
registers
repetition
resources
interactions

Keywords

  • qubit interactions
  • hybrid physical systems
  • ancilla quantum computation

Cite this

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AB - Some two qubit interactions are singly sufficient for universal quantum computation but not without the use of an ancilla. Recent schemes for universal quantum computation have focused on hybrid physical systems using ancillae. In them, the application of resources is shifted to the ancilla system. We consider which 2-qubit interactions are universal in ancilla schemes where direct connections between main register qubits are forbidden. By the use of ancilla driven operations and repeat-until-success style random gates, a single fixed symmetric gate can be universal be control of the number of repetitions alone.

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UR - http://arxiv.org/abs/1401.8004

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