dorsal/arxiv
View SchemaSuppression of decoherence by bath ordering
| Authors | Jun Jing, H. R. Ma |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0611267 |
| URL | https://arxiv.org/abs/quant-ph/0611267 |
| DOI | 10.1088/1009-1963/16/6/001 |
| Journal | Chinese Physics 2007/16(06)/1489-16 |
Abstract
The dynamics of two coupled spins-1/2 coupled to a spin-bath is studied as an extended model of the Tessieri-Wilkie Hamiltonian \cite{TWmodel}. The pair of spins served as an open subsystem were prepared in one of the Bell states and the bath consisted of some spins-1/2 is in a thermal equilibrium state from the very beginning. It is found that with the increasing the coupling strength of the bath spins, the bath forms a resonant antiferromagnetic order. The polarization correlation between the two spins of the subsystem and the concurrence are recovered in some extent to the isolated subsystem. This suppression of the subsystem decoherence may be used to control the quantum devices in practical applications.
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"abstract": "The dynamics of two coupled spins-1/2 coupled to a spin-bath is studied as an\nextended model of the Tessieri-Wilkie Hamiltonian \\cite{TWmodel}. The pair of\nspins served as an open subsystem were prepared in one of the Bell states and\nthe bath consisted of some spins-1/2 is in a thermal equilibrium state from the\nvery beginning. It is found that with the increasing the coupling strength of\nthe bath spins, the bath forms a resonant antiferromagnetic order. The\npolarization correlation between the two spins of the subsystem and the\nconcurrence are recovered in some extent to the isolated subsystem. This\nsuppression of the subsystem decoherence may be used to control the quantum\ndevices in practical applications.",
"arxiv_id": "quant-ph/0611267",
"authors": [
"Jun Jing",
"H. R. Ma"
],
"categories": [
"quant-ph"
],
"doi": "10.1088/1009-1963/16/6/001",
"journal_ref": "Chinese Physics 2007/16(06)/1489-16",
"title": "Suppression of decoherence by bath ordering",
"url": "https://arxiv.org/abs/quant-ph/0611267"
},
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