dorsal/arxiv
View SchemaModeling Decoherence and Decoherence-Free Subspaces in Complex Environments
| Authors | Jeffrey Satinover |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0212003 |
| URL | https://arxiv.org/abs/quant-ph/0212003 |
Abstract
A simplified Bogoliubov transform reduces a fully-interacting many-fermion spin-1/2 system-plus-environment to a more tractable many-to-one variant. The transform additionally yields exact solutions for bosonic multi-particle interactions sans the approximation introduced by using discrete time steps to deal with quantum parallelism. The decohering effect of relatively general finite environments is therewith modeled and compared to the decohering effect of an infinite environmental "bath." The anti-symmetric singlet state formed by two maximally-entangled two-state particles is shown to be inherently decoherence-free. As a quantum bit ("qubit") it is thus potentially superior to any single-particle state.
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"date_created": "2026-03-02T18:01:55.797000Z",
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"abstract": "A simplified Bogoliubov transform reduces a fully-interacting many-fermion\nspin-1/2 system-plus-environment to a more tractable many-to-one variant. The\ntransform additionally yields exact solutions for bosonic multi-particle\ninteractions sans the approximation introduced by using discrete time steps to\ndeal with quantum parallelism. The decohering effect of relatively general\nfinite environments is therewith modeled and compared to the decohering effect\nof an infinite environmental \"bath.\" The anti-symmetric singlet state formed by\ntwo maximally-entangled two-state particles is shown to be inherently\ndecoherence-free. As a quantum bit (\"qubit\") it is thus potentially superior to\nany single-particle state.",
"arxiv_id": "quant-ph/0212003",
"authors": [
"Jeffrey Satinover"
],
"categories": [
"quant-ph",
"cond-mat.mes-hall"
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"title": "Modeling Decoherence and Decoherence-Free Subspaces in Complex Environments",
"url": "https://arxiv.org/abs/quant-ph/0212003"
},
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"type": "Model",
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