Detection and Quantized Conductance of Neutral Atoms Near a Charged Carbon Nanotube

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Detection and Quantized Conductance of Neutral Atoms Near a Charged Carbon Nanotube

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Title: Detection and Quantized Conductance of Neutral Atoms Near a Charged Carbon Nanotube
Author: Ristroph, Trygve; Goodsell, Anne; Golovchenko, Jene Andrew; Hau, Lene V.

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Citation: Ristroph, Trygve, Anne Goodsell, J. A. Golovchenko, and Lene Vestergaard Hau. 2005. “Detection and Quantized Conductance of Neutral Atoms Near a Charged Carbon Nanotube.” Physical Review Letters 94 (6) (February). doi:10.1103/physrevlett.94.066102.
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Abstract: We describe a novel single atom detector that uses the high electric field surrounding a charged single-walled carbon nanotube to attract and subsequently field-ionize neutral atoms. A theoretical study of the field-ionization tunneling rates for atomic trajectories in the attractive potential near a nanowire shows that a broadly applicable, high spatial resolution, low-power, neutral-atom detector with nearly 100% efficiency is realizable with present-day technology. Calculations also show that the system can provide the first opportunity to study quantized conductance phenomena when detecting cold neutral atoms with mean velocities less than 15 m/s.
Published Version: doi:10.1103/PhysRevLett.94.066102
Other Sources: http://labs.mcb.harvard.edu/branton/RistrophEtAl2005.pdf
Terms of Use: This article is made available under the terms and conditions applicable to Other Posted Material, as set forth at http://nrs.harvard.edu/urn-3:HUL.InstRepos:dash.current.terms-of-use#LAA
Citable link to this page: http://nrs.harvard.edu/urn-3:HUL.InstRepos:21976374
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