dorsal/arxiv
View SchemaCollisional decoherence reexamined
| Authors | Klaus Hornberger, John E. Sipe |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0303094 |
| URL | https://arxiv.org/abs/quant-ph/0303094 |
| DOI | 10.1103/PhysRevA.68.012105 |
| Journal | Phys. Rev. A 68, 012105 (2003) |
Abstract
We re-derive the quantum master equation for the decoherence of a massive Brownian particle due to collisions with the lighter particles from a thermal environment. Our careful treatment avoids the occurrence of squares of Dirac delta functions. It leads to a decoherence rate which is smaller by a factor of 2 pi compared to previous findings. This result, which is in agreement with recent experiments, is confirmed by both a physical analysis of the problem and by a perturbative calculation in the weak coupling limit.
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"abstract": "We re-derive the quantum master equation for the decoherence of a massive\nBrownian particle due to collisions with the lighter particles from a thermal\nenvironment. Our careful treatment avoids the occurrence of squares of Dirac\ndelta functions. It leads to a decoherence rate which is smaller by a factor of\n2 pi compared to previous findings. This result, which is in agreement with\nrecent experiments, is confirmed by both a physical analysis of the problem and\nby a perturbative calculation in the weak coupling limit.",
"arxiv_id": "quant-ph/0303094",
"authors": [
"Klaus Hornberger",
"John E. Sipe"
],
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"quant-ph"
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"doi": "10.1103/PhysRevA.68.012105",
"journal_ref": "Phys. Rev. A 68, 012105 (2003)",
"title": "Collisional decoherence reexamined",
"url": "https://arxiv.org/abs/quant-ph/0303094"
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