Hydrodynamic <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>X</mml:mi></mml:math> Waves
Date
2019-11-01Author
Steer, JN
Borthwick, Alistair
Onorato, M
Chabchoub, A
van den Bremer, TS
Metadata
Show full item recordAbstract
Stationary wave groups exist in a range of nonlinear dispersive media, including optics, Bose-Einstein condensates, plasma, and hydrodynamics. We report experimental observations of nonlinear surface gravity X waves, i.e., X-shaped wave envelopes that propagate over long distances with constant form. These can be described by the 2D+1 nonlinear Schrödinger equation, which predicts a balance between dispersion and diffraction when the envelope (the arms of the X) travel at ±arctan(1/sqrt[2])≈±35.26° to the carrier wave. Our findings may help improve understanding the lifetime of extremes in directional seas and motivate further studies in other nonlinear dispersive media.
Collections
Publisher
American Physical Society (APS)
Place of Publication
United States
Journal
Physical Review Letters
Volume
123
Issue
18
Pagination
184501-
Author URL
Number
184501
Recommended, similar items
The following license files are associated with this item: