dorsal/arxiv
View SchemaAtomic spin decoherence near conducting and superconducting films
| Authors | Stefan Scheel, Per-Kristian Rekdal, Peter L. Knight, Edward A. Hinds |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0501149 |
| URL | https://arxiv.org/abs/quant-ph/0501149 |
| DOI | 10.1103/PhysRevA.72.042901 |
Abstract
We derive scaling laws for the spin decoherence of neutral atoms trapped near conducting and superconducting plane surfaces. A new result for thin films sheds light on the measurement of Y.J. Lin, I. Teper, C. Chin, and V. Vuleti\'{c} [Phys. Rev. Lett. \textbf{92}, 050404 (2004)]. Our calculation is based on a quantum-theoretical treatment of electromagnetic radiation near metallic bodies [P.K. Rekdal, S. Scheel, P.L. Knight, and E.A. Hinds, Phys. Rev. A \textbf{70}, 013811 (2004)]. We show that there is a critical atom-surface distance that maximizes the spin relaxation rate and we show how this depends on the skin depth and thickness of the metal surface. In the light of this impedance-matching effect we discuss the spin relaxation to be expected above a thin superconducting niobium layer.
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"abstract": "We derive scaling laws for the spin decoherence of neutral atoms trapped near\nconducting and superconducting plane surfaces. A new result for thin films\nsheds light on the measurement of Y.J. Lin, I. Teper, C. Chin, and V.\nVuleti\\\u0027{c} [Phys. Rev. Lett. \\textbf{92}, 050404 (2004)]. Our calculation is\nbased on a quantum-theoretical treatment of electromagnetic radiation near\nmetallic bodies [P.K. Rekdal, S. Scheel, P.L. Knight, and E.A. Hinds, Phys.\nRev. A \\textbf{70}, 013811 (2004)]. We show that there is a critical\natom-surface distance that maximizes the spin relaxation rate and we show how\nthis depends on the skin depth and thickness of the metal surface. In the light\nof this impedance-matching effect we discuss the spin relaxation to be expected\nabove a thin superconducting niobium layer.",
"arxiv_id": "quant-ph/0501149",
"authors": [
"Stefan Scheel",
"Per-Kristian Rekdal",
"Peter L. Knight",
"Edward A. Hinds"
],
"categories": [
"quant-ph"
],
"doi": "10.1103/PhysRevA.72.042901",
"title": "Atomic spin decoherence near conducting and superconducting films",
"url": "https://arxiv.org/abs/quant-ph/0501149"
},
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