dorsal/arxiv
View SchemaDecoherence of quantum states and its suppression in ensemble large-scale solid state NMR quantum computers
| Authors | A. A. Kokin |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0211096 |
| URL | https://arxiv.org/abs/quant-ph/0211096 |
| DOI | 10.1117/12.517916 |
Abstract
It is discussed the decoherence problems in ensemble large-scale solid state NMR quantum computer based on the array of P donor atoms having nuclear spin I = 1/2. It is considered here, as main mechanisms of decoherence for low temperature (< 0.1 K), the adiabatic processes of random modulation of qubit resonance frequency determined by secular part of nuclear spin interaction with electron spin of the basic atoms, with impurity paramagnetic atoms and also with nuclear spins of impurity diamagnetic atoms. It was made estimations of allowed concentrations of magnetic impurities and of spin temperature whereby the required decoherence suppression is obtained. It is discussed the random phase error suppression in the ensemble quantum register basic states.
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"abstract": "It is discussed the decoherence problems in ensemble large-scale solid state\nNMR quantum computer based on the array of P donor atoms having nuclear spin I\n= 1/2. It is considered here, as main mechanisms of decoherence for low\ntemperature (\u003c 0.1 K), the adiabatic processes of random modulation of qubit\nresonance frequency determined by secular part of nuclear spin interaction with\nelectron spin of the basic atoms, with impurity paramagnetic atoms and also\nwith nuclear spins of impurity diamagnetic atoms. It was made estimations of\nallowed concentrations of magnetic impurities and of spin temperature whereby\nthe required decoherence suppression is obtained. It is discussed the random\nphase error suppression in the ensemble quantum register basic states.",
"arxiv_id": "quant-ph/0211096",
"authors": [
"A. A. Kokin"
],
"categories": [
"quant-ph"
],
"doi": "10.1117/12.517916",
"title": "Decoherence of quantum states and its suppression in ensemble large-scale solid state NMR quantum computers",
"url": "https://arxiv.org/abs/quant-ph/0211096"
},
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