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Pseudo-digital quantum bits
Mark Friesen, Robert Joynt, M. A. Eriksson
abstract: Quantum computers are analog devices; thus they are highly susceptible to
accumulative errors arising from classical control electronics. Fast
operation--as necessitated by decoherence--makes gating errors very likely. In
most current designs for scalable quantum computers it is not possible to
satisfy both the requirements of low decoherence errors and low gating errors.
Here we introduce a hardware-based technique for pseudo-digital gate operation.
We perform self-consistent simulations of semiconductor quantum dots, finding
that pseudo-digital techniques reduce operational error rates by more than two
orders of magnitude, thus facilitating fast operation.
- oai_identifier:
- oai:arXiv.org:quant-ph/0208105
- categories:
- quant-ph
- comments:
- 4 pages, 3 figures
- doi:
- 10.1063/1.1527692
- arxiv_id:
- quant-ph/0208105
- created:
- 2002-08-15
Full article ▸
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