Perfect absorption in complex scattering systems with or without hidden symmetries
نویسندگان
چکیده
منابع مشابه
Hidden symmetries in jammed systems
There are deep, but hidden, geometric structures within jammed systems, associated with hidden symmetries. These can be revealed by repeated transformations under which these structures lead to fixed points. These geometric structures can be found in the Voronoi tesselation of space defined by the packing. In this paper we examine two iterative processes: maximum inscribed sphere (MIS) inversio...
متن کاملGeneric Hyperbolic Knot Complements without Hidden Symmetries
We describe conditions under which, for a two-component hyperbolic link in S3 with an unknotted component, one can show that all but finitely many hyperbolic knots obtained by 1/n-surgery on that component lack hidden symmetries. We apply these conditions to the two-component links through nine crossings in the Rolfsen table, and to various other links in the literature. In each case we show th...
متن کاملPerfect Symmetries
While empirical symmetries relate situations, theoretical symmetries relate models of a theory we use to represent them. An empirical symmetry is perfect if and only if any two situations it relates share all intrinsic properties. Sometimes one can use a theory to explain an empirical symmetry by showing how it follows from a corresponding theoretical symmetry. The theory then reveals a perfect...
متن کاملAbsorption in microwave scattering systems
U. Kuhl and H.-J. Stöckmann Fachbereich Physik, Philipps-Universität Marburg, Renthof 5, D-35032 Marburg, Germany M. Mart́ınez-Mares Departamento de F́ısica, UAM-Iztapalapa, Av. San Rafael Atlixco 186, Col. Vicentina, 09340 México D. F., México R.A. Méndez-Sánchez Centro de Ciencias F́ısicas, Universidad Nacional Autónoma de México, A.P 48-3, 62210, Cuernavaca, Mor., México J. Main Institut für Th...
متن کاملHidden black: coherent enhancement of absorption in strongly scattering media.
We show that a weakly absorbing, strongly scattering (white) medium can be made very strongly absorbing at any frequency within its strong-scattering bandwidth by optimizing the input electromagnetic field. For uniform absorption, results from random matrix theory imply that the reflectivity of the medium can be suppressed by a factor ∼(ℓ(a)/ℓ)N(-2), where N is the number of incident channels a...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Nature Communications
سال: 2020
ISSN: 2041-1723
DOI: 10.1038/s41467-020-19645-5