Wave effects in acoustic media with a negative refractive index. (English. Russian original) Zbl 1255.78020
Bull. Russ. Acad. Sci., Phys. 72, No. 12, 1601-1605 (2008); translation from Izv. Ross. Akad. Nauk, Ser. Fiz. 72, No. 12, 1695-1699 (2008).
Summary: A method for analyzing media with a negative refractive index in acoustics has been proposed. An analog of the Lippmann-Schwinger equation is derived from the initial hydrodynamical equation and a theory of wave scattering by inhomogeneities of a medium with an arbitrarily specified value and sign of density and compressibility is constructed. Numerical simulation of the effects related to negative refraction is performed.
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