dorsal/arxiv
View SchemaConcatenating dynamical decoupling with decoherence-free subspaces for quantum computation
| Authors | Yong Zhang, Zheng-Wei Zhou, Bo Yu, Guang-Can Guo |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0311067 |
| URL | https://arxiv.org/abs/quant-ph/0311067 |
| DOI | 10.1103/PhysRevA.69.042315 |
| Journal | Phys.Rev.A 69,042315(2004) |
Abstract
A scheme to implement a quantum computer subjected to decoherence and governed by an untunable qubit-qubit interaction is presented. By concatenating dynamical decoupling through bang-bang (BB) pulse with decoherence-free subspaces (DFSs) encoding, we protect the quantum computer from environment-induced decoherence that results in quantum information dissipating into the environment. For the inherent qubit-qubit interaction that is untunable in the quantum system, BB control plus DFSs encoding will eliminate its undesired effect which spoils quantum information in qubits. We show how this quantum system can be used to implement universal quantum computation.
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"abstract": "A scheme to implement a quantum computer subjected to decoherence and\ngoverned by an untunable qubit-qubit interaction is presented. By concatenating\ndynamical decoupling through bang-bang (BB) pulse with decoherence-free\nsubspaces (DFSs) encoding, we protect the quantum computer from\nenvironment-induced decoherence that results in quantum information dissipating\ninto the environment. For the inherent qubit-qubit interaction that is\nuntunable in the quantum system, BB control plus DFSs encoding will eliminate\nits undesired effect which spoils quantum information in qubits. We show how\nthis quantum system can be used to implement universal quantum computation.",
"arxiv_id": "quant-ph/0311067",
"authors": [
"Yong Zhang",
"Zheng-Wei Zhou",
"Bo Yu",
"Guang-Can Guo"
],
"categories": [
"quant-ph"
],
"doi": "10.1103/PhysRevA.69.042315",
"journal_ref": "Phys.Rev.A 69,042315(2004)",
"title": "Concatenating dynamical decoupling with decoherence-free subspaces for quantum computation",
"url": "https://arxiv.org/abs/quant-ph/0311067"
},
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