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Quantum
Information and Computation
ISSN: 1533-7146
published since 2001
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Vol.13 No.3&4 March 2013 |
Magic-state distillation with the four-qubit code
(pp0195-0209)
Adam M. Meier, Bryan Eastin, and Emanuel Knill
doi:
https://doi.org/10.26421/QIC13.3-4-2
Abstracts:
The distillation of magic states is an often-cited technique for
enabling universal quantum computing once the error probability for a
special subset of gates has been made negligible by other means. We
present a routine for magic-state distillation that reduces the required
overhead for a range of parameters of practical interest. Each iteration
of the routine uses a four-qubit error-detecting code to distill the +1
eigenstate of the Hadamard gate at a cost of ten input states per two
improved output states. Use of this routine in combination with the
15-to-1 distillation routine described by Bravyi and Kitaev allows for
further improvements in overhead.
Key words:
magic-state, distillation, Clifford, four-qubit
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