Please use this identifier to cite or link to this item: https://doi.org/10.1088/0953-4075/43/9/095002
Title: Heating rate and spin flip lifetime due to near-field noise in layered superconducting atom chips
Authors: Fermani, R. 
Müller, T. 
Zhang, B.
Lim, M.J.
Dumke, R.
Issue Date: 2010
Citation: Fermani, R., Müller, T., Zhang, B., Lim, M.J., Dumke, R. (2010). Heating rate and spin flip lifetime due to near-field noise in layered superconducting atom chips. Journal of Physics B: Atomic, Molecular and Optical Physics 43 (9) : -. ScholarBank@NUS Repository. https://doi.org/10.1088/0953-4075/43/9/095002
Abstract: We investigate theoretically the heating rate and spin flip lifetimes due to near-field noise for atoms trapped close to layered superconducting structures with the superconductor in the Meissner state. In particular, we compare the case of a gold layer deposited above a superconductor with the case of a bare superconductor. We study a niobium-based and a YBa2Cu 3O7 - x (YBCO)-based chip. For both niobium and YBCO chips at a temperature of 4.2 K, we find that the deposition of the gold layer can have a significant impact on the heating rate and spin flip lifetime, as a result of the increase of the near-field noise. At a chip temperature of 77 K, this effect is less pronounced for the YBCO chip. © 2010 IOP Publishing Ltd.
Source Title: Journal of Physics B: Atomic, Molecular and Optical Physics
URI: http://scholarbank.nus.edu.sg/handle/10635/115128
ISSN: 09534075
DOI: 10.1088/0953-4075/43/9/095002
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