Amplitude and Phase of Wave Packets in a Linear Potential.

  title={Amplitude and Phase of Wave Packets in a Linear Potential.},
  author={Georgi Gary Rozenman and Matthias Zimmermann and Maxim A. Efremov and Wolfgang P. Schleich and Lev Shemer and Ady Arie},
  journal={Physical review letters},
  volume={122 12},
We theoretically study and successfully observe the evolution of Gaussian and Airy surface gravity water wave packets propagating in an effective linear potential. This potential results from a homogeneous and time-dependent flow created by a computer-controlled water pump. For both wave packets we measure the amplitudes and the cubic phases appearing due to the linear potential. Furthermore, we demonstrate that the self-acceleration of the Airy surface gravity water wave packets can be… 

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