caa a22 4500 445865563 CHVBK 20180317145456.0 cr unu---uuuuu 170323e20110601xx s 000 0 eng 10.1140/epjd/e2011-10659-5 doi (NATIONALLICENCE)springer-10.1140/epjd/e2011-10659-5 Scattering of ultracold atoms by an absorbing nanowire [Elektronische Daten] [Martin Fink, Johannes Eiglsperger, Harald Friedrich, Javier Madroñero] We study the scattering of ultracold atoms by a conducting cylindrical wire with total absorption near the surface of the wire. A hierarchy of approximations for the exact nonretarded atom-wire potential is explored. We show the existence of a semiclassical region near to the surface of the wire, which allows us to unambiguously define incoming boundary conditions for the description of total absorption at the wire surface. The semiclassical region is only reproduced by an accurate treatment of the potential. We calculate the complex s-wave scattering length for the effective two-dimensional atom-wire scattering problem. The scattering length tends to the wire radius R in the thick-wire limit, and it tends to 0 nearly as (ln R)-1 in the thin-wire limit. EDP Sciences, SIF, Springer-Verlag Berlin Heidelberg, 2011 Fink Martin Physik Department, Technische Universität München, 85747, Garching, Germany aut Eiglsperger Johannes Physik Department, Technische Universität München, 85747, Garching, Germany aut Friedrich Harald Physik Department, Technische Universität München, 85747, Garching, Germany aut Madroñero Javier Physik Department, Technische Universität München, 85747, Garching, Germany aut The European Physical Journal D Springer-Verlag 63/1(2011-06-01), 33-39 1434-6060 63:1<33 2011 63 10053 https://doi.org/10.1140/epjd/e2011-10659-5 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1140/epjd/e2011-10659-5 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Fink Martin Physik Department, Technische Universität München, 85747, Garching, Germany aut NATIONALLICENCE 700 1- Eiglsperger Johannes Physik Department, Technische Universität München, 85747, Garching, Germany aut NATIONALLICENCE 700 1- Friedrich Harald Physik Department, Technische Universität München, 85747, Garching, Germany aut NATIONALLICENCE 700 1- Madroñero Javier Physik Department, Technische Universität München, 85747, Garching, Germany aut NATIONALLICENCE 773 0- The European Physical Journal D Springer-Verlag 63/1(2011-06-01), 33-39 1434-6060 63:1<33 2011 63 10053 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer