dorsal/arxiv
View SchemaDecoherence of quantum registers
| Authors | Lu-Ming Duan, Guang-Can Guo |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/9703036 |
| URL | https://arxiv.org/abs/quant-ph/9703036 |
Abstract
We consider decoherence of quantum registers, which consist of the qubits sited approximately periodically in space. The sites of the qubits are permitted to have a small random variance. We derive the explicit conditions under which the qubits can be assumed decohering independently. In other circumstances, the qubits are decohered cooperatively. We describe two kinds of collective decoherence. In each case, a scheme is proposed for reducing the collective decoherence. The schemes operate by encoding the input states of the qubits into some ''subdecoherent'' states.
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"abstract": "We consider decoherence of quantum registers, which consist of the qubits\nsited approximately periodically in space. The sites of the qubits are\npermitted to have a small random variance. We derive the explicit conditions\nunder which the qubits can be assumed decohering independently. In other\ncircumstances, the qubits are decohered cooperatively. We describe two kinds of\ncollective decoherence. In each case, a scheme is proposed for reducing the\ncollective decoherence. The schemes operate by encoding the input states of the\nqubits into some \u0027\u0027subdecoherent\u0027\u0027 states.",
"arxiv_id": "quant-ph/9703036",
"authors": [
"Lu-Ming Duan",
"Guang-Can Guo"
],
"categories": [
"quant-ph"
],
"title": "Decoherence of quantum registers",
"url": "https://arxiv.org/abs/quant-ph/9703036"
},
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