dorsal/arxiv
View SchemaIndirect decoherence in optical lattices and cold gases
| Authors | Daniel Braun |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0606003 |
| URL | https://arxiv.org/abs/quant-ph/0606003 |
| DOI | 10.1140/epjd/e2006-00272-2 |
| Journal | Eur. Phys. J D 42, 103 (2007) |
Abstract
The interaction of two--level atoms with a common heat bath leads to an effective interaction between the atoms, such that with time the internal degrees of the atoms become correlated or even entangled. If part of the atoms remain unobserved this creates additional indirect decoherence for the selected atoms, on top of the direct decoherence due to the interaction with the heat bath. I show that indirect decoherence can drastically increase and even dominate the decoherence for sufficiently large times. I investigate indirect decoherence through thermal black body radiation quantitatively for atoms trapped at regular positions in an optical lattice as well as for atoms at random positions in a cold gas, and show how indirect coherence can be controlled or even suppressed through experimentally accessible parameters.
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"abstract": "The interaction of two--level atoms with a common heat bath leads to an\neffective interaction between the atoms, such that with time the internal\ndegrees of the atoms become correlated or even entangled. If part of the atoms\nremain unobserved this creates additional indirect decoherence for the selected\natoms, on top of the direct decoherence due to the interaction with the heat\nbath. I show that indirect decoherence can drastically increase and even\ndominate the decoherence for sufficiently large times. I investigate indirect\ndecoherence through thermal black body radiation quantitatively for atoms\ntrapped at regular positions in an optical lattice as well as for atoms at\nrandom positions in a cold gas, and show how indirect coherence can be\ncontrolled or even suppressed through experimentally accessible parameters.",
"arxiv_id": "quant-ph/0606003",
"authors": [
"Daniel Braun"
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"doi": "10.1140/epjd/e2006-00272-2",
"journal_ref": "Eur. Phys. J D 42, 103 (2007)",
"title": "Indirect decoherence in optical lattices and cold gases",
"url": "https://arxiv.org/abs/quant-ph/0606003"
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