Gaussianity revisited: Exploring the Kibble-Zurek mechanism with superconducting rings

Дата и время публикации : 2013-02-28T19:34:14Z

Авторы публикации и институты :
D. J. Weir
R. Monaco
V. P. Koshelets
J. Mygind
R. J. Rivers

Ссылка на журнал-издание: J. Phys.: Condens. Matter 25 404207 (2013)
Коментарии к cтатье: 20 pages, 10 figures; submitted to J. Phys: Condens. Matter for the special issue ‘Condensed Matter Analogues of Cosmology’; v2: considerably reduced length, incorporation of experimental details into main text, discussion improved, references added, version accepted for publication
Первичная категория: cond-mat.supr-con

Все категории : cond-mat.supr-con, astro-ph.CO

Краткий обзор статьи: In this paper we use spontaneous flux production in annular superconductors to shed light on the Kibble-Zurek scenario. In particular, we examine the effects of finite size and external fields, neither of which is directly amenable to the KZ analysis. Supported by 1D and 3D simulations, the properties of a superconducting ring are seen to be well represented by analytic Gaussian approximations which encode the KZ scales indirectly. Experimental results for annuli in the presence of external fields corroborate these findings.

Category: Physics