Keller’s theorem revisited

Keller’s theorem relates the components of the macroscopic dielectric response of a binary two-dimensional composite system with those of the reciprocal system obtained by interchanging its components. We present a derivation of the theorem that, unlike previous ones, does not employ the common assu...

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Main Authors: Guillermo P Ortiz, W Luis Mochán
Format: Article
Language:English
Published: IOP Publishing 2018-01-01
Series:New Journal of Physics
Subjects:
Online Access:https://doi.org/10.1088/1367-2630/aaa7e1
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author Guillermo P Ortiz
W Luis Mochán
author_facet Guillermo P Ortiz
W Luis Mochán
author_sort Guillermo P Ortiz
collection DOAJ
description Keller’s theorem relates the components of the macroscopic dielectric response of a binary two-dimensional composite system with those of the reciprocal system obtained by interchanging its components. We present a derivation of the theorem that, unlike previous ones, does not employ the common assumption that the response function relates an irrotational to a solenoidal field and that is valid for dispersive and dissipative anisotropic systems. We show that the usual statement of Keller’s theorem in terms of the conductivity is strictly valid only at zero frequency and we obtain a new generalization for finite frequencies. We develop applications of the theorem to the study of the optical properties of systems such as superlattices, 2D isotropic and anisotropic metamaterials and random media, to test the accuracy of theories and computational schemes, and to increase the accuracy of approximate calculations.
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spelling doaj.art-5639900649854ee680d0cd4fda97fb902023-08-08T14:51:04ZengIOP PublishingNew Journal of Physics1367-26302018-01-0120202302810.1088/1367-2630/aaa7e1Keller’s theorem revisitedGuillermo P Ortiz0W Luis Mochán1Departamento de Física, Facultad de Ciencias Exactas Naturales y Agrimensura, Universidad Nacional del Nordeste , Corrientes, ArgentinaInstituto de Ciencias Físicas, Universidad Nacional Autónoma de México , Apartado Postal 48-3, 62251 Cuernavaca, Morelos, MéxicoKeller’s theorem relates the components of the macroscopic dielectric response of a binary two-dimensional composite system with those of the reciprocal system obtained by interchanging its components. We present a derivation of the theorem that, unlike previous ones, does not employ the common assumption that the response function relates an irrotational to a solenoidal field and that is valid for dispersive and dissipative anisotropic systems. We show that the usual statement of Keller’s theorem in terms of the conductivity is strictly valid only at zero frequency and we obtain a new generalization for finite frequencies. We develop applications of the theorem to the study of the optical properties of systems such as superlattices, 2D isotropic and anisotropic metamaterials and random media, to test the accuracy of theories and computational schemes, and to increase the accuracy of approximate calculations.https://doi.org/10.1088/1367-2630/aaa7e1effective mediarecursive algorithmcompositesplasmonsrandom mediaoptics
spellingShingle Guillermo P Ortiz
W Luis Mochán
Keller’s theorem revisited
New Journal of Physics
effective media
recursive algorithm
composites
plasmons
random media
optics
title Keller’s theorem revisited
title_full Keller’s theorem revisited
title_fullStr Keller’s theorem revisited
title_full_unstemmed Keller’s theorem revisited
title_short Keller’s theorem revisited
title_sort keller s theorem revisited
topic effective media
recursive algorithm
composites
plasmons
random media
optics
url https://doi.org/10.1088/1367-2630/aaa7e1
work_keys_str_mv AT guillermoportiz kellerstheoremrevisited
AT wluismochan kellerstheoremrevisited