We calculate traveling waves in the mammalian cochlea, which transduces acoustic
vibrations into neural signals. We use a WKB-based mechanical model with both the …

This study analyzes a waveguide consisting of two parallel fluid-filled chambers connected
by a narrow slit that is spanned by two coupled elastic beams. A stiffness gradient exists in …

A tutorial introduction to the topic of linear wave conversion in multiple spatial dimensions is
provided. The emphasis is on physical concepts, particularly those features of …

The metaplectic formulation of linear mode conversion is presented. We begin by discussing
the connection between wave operators in weakly inhomogeneous media, their symbols …

For describing ion gyroresonance processes, a complete set of self‐consistent Vlasov–
Maxwell equations is derived by systematically transforming a self‐consistent action …

Phase integral theory, coupled wave equations,and mode conversion Page 1 Phase integral
theory, coupled wave equations,and mode conversion Robert G. Littlejohn and William G …

In classical WKB theory the only way wave energy density, as a surrogate for wave action
density, can increase or decrease along a ray is as a result of the ray focusing or widening …

Coupled wave equations and the corresponding wave‐energy‐flow conservation law
describing the fast magnetosonic and ion‐Bernstein waves are derived for minority heating …

We incorporate linear mode conversion in wave-kinetic theory when the incoming waves are
incoherent, as occurs when the wave sources are turbulent processes or thermal emission …

A general formula is presented for the mode conversion coefficient for linear mode
conversion in one dimension, in terms of an arbitrary 2× 2 reduced dispersion matrix …