Abstract
A specific mechanism of mode coupling in a waveguide propagation is studied when two range-dependent eigenvalues approach each other. This phenomenon is analogous to the so-called quasi-crossing of states in atomic physics (Landau-Zener theory). It is considered for the sound wave propagation in a coastal wedge in the presence of a sound-speed profile. The change in mode composition and the corresponding spatial variability of the sound field are analyzed by using modes coupling equations and the parabolic equation with a field decomposition over adiabatic modes, respectively.
Original language | English |
---|---|
Article number | 016001 |
Journal | JASA Express Letters |
Volume | 3 |
Issue number | 1 |
DOIs | |
State | Published - 1 Jan 2023 |
Bibliographical note
Publisher Copyright:© 2023 Author(s).
ASJC Scopus subject areas
- Acoustics and Ultrasonics
- Music
- Arts and Humanities (miscellaneous)