dorsal/arxiv
View SchemaShort-time decoherence of Josephson charge qubits in Ohmic and 1/f noise environment
| Authors | Xian-Ting Liang |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0503155 |
| URL | https://arxiv.org/abs/quant-ph/0503155 |
| DOI | 10.1016/j.physc.2005.08.012 |
| Journal | Physica C 432 (2005) 231-238 |
Abstract
In this paper we investigate the short-time decoherence from Ohmic and 1/f noise of single Josephson charge qubit (JCQ). At first, we use the short-time approximation to obtain the dynamics of the open JCQ. Then we calculate the decoherence the measure of which is chosen as the maximum norm of the deviation density operator. It is shown that the decoherence from 1/f noise plays the central role. The total decoherence from Ohmic and 1/f noise is serious at present experiential conditions according to the DiVincenzo criterion.
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"abstract": "In this paper we investigate the short-time decoherence from Ohmic and 1/f\nnoise of single Josephson charge qubit (JCQ). At first, we use the short-time\napproximation to obtain the dynamics of the open JCQ. Then we calculate the\ndecoherence the measure of which is chosen as the maximum norm of the deviation\ndensity operator. It is shown that the decoherence from 1/f noise plays the\ncentral role. The total decoherence from Ohmic and 1/f noise is serious at\npresent experiential conditions according to the DiVincenzo criterion.",
"arxiv_id": "quant-ph/0503155",
"authors": [
"Xian-Ting Liang"
],
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"quant-ph"
],
"doi": "10.1016/j.physc.2005.08.012",
"journal_ref": "Physica C 432 (2005) 231-238",
"title": "Short-time decoherence of Josephson charge qubits in Ohmic and 1/f noise environment",
"url": "https://arxiv.org/abs/quant-ph/0503155"
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