dorsal/arxiv
View SchemaCombined encoding and decoupling solution to problems of decoherence and design in solid-state quantum computing
| Authors | Mark S. Byrd, Daniel A. Lidar |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0112054 |
| URL | https://arxiv.org/abs/quant-ph/0112054 |
| DOI | 10.1103/PhysRevLett.89.047901 |
| Journal | Phys. Rev. Lett. 89, 047901 (2002) |
Abstract
Proposals for scalable quantum computing devices suffer not only from decoherence due to the interaction with their environment, but also from severe engineering constraints. Here we introduce a practical solution to these major concerns, addressing solid state proposals in particular. Decoherence is first reduced by encoding a logical qubit into two qubits, then completely eliminated by an efficient set of decoupling pulse sequences. The same encoding removes the need for single-qubit operations, that pose a difficult design constraint. We further show how the dominant decoherence processes can be identified empirically, in order to optimize the decoupling pulses.
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"abstract": "Proposals for scalable quantum computing devices suffer not only from\ndecoherence due to the interaction with their environment, but also from severe\nengineering constraints. Here we introduce a practical solution to these major\nconcerns, addressing solid state proposals in particular. Decoherence is first\nreduced by encoding a logical qubit into two qubits, then completely eliminated\nby an efficient set of decoupling pulse sequences. The same encoding removes\nthe need for single-qubit operations, that pose a difficult design constraint.\nWe further show how the dominant decoherence processes can be identified\nempirically, in order to optimize the decoupling pulses.",
"arxiv_id": "quant-ph/0112054",
"authors": [
"Mark S. Byrd",
"Daniel A. Lidar"
],
"categories": [
"quant-ph",
"cond-mat"
],
"doi": "10.1103/PhysRevLett.89.047901",
"journal_ref": "Phys. Rev. Lett. 89, 047901 (2002)",
"title": "Combined encoding and decoupling solution to problems of decoherence and design in solid-state quantum computing",
"url": "https://arxiv.org/abs/quant-ph/0112054"
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