Volume 80, Number 4, November 2007
Article Number 44001
Number of page(s) 4
Section Electromagnetism, Optics, Acoustics, Heat Transfer, Classical Mechanics, and Fluid Dynamics
Published online 19 October 2007
EPL, 80 (2007) 44001
DOI: 10.1209/0295-5075/80/44001

Scattering by many small bodies and applications to condensed matter physics

A. G. Ramm

Mathematics Department, Kansas St. University - Manhattan, KS 66506, USA and TU Darmstadt - Darmstadt, Germany

received 26 June 2007; accepted in final form 21 September 2007; published November 2007
published online 19 October 2007

Equations for the effective field in the medium, in which many small particles are embedded, are derived. It is shown how to create a material with a desired refraction coefficient by embedding in a given material many small particles.

43.20.+g - General linear acoustics.
62.30.+d - Mechanical and elastic waves; vibrations.

© Europhysics Letters Association 2007