Quantum revival for elastic waves in thin plate
arXiv:1611.05202 · doi:10.1140/epjst/e2016-60364-7
Abstract
Quantum revival is described as the time-periodic reconstruction of a wave packet initially localized in space and time. This effect is expected in finite-size systems which exhibits commensurable discrete spectrum such as the infinite quantum well. Here, we report on the experimental observation of full and fractional quantum revival for classical waves in a two dimensional cavity. We consider flexural waves propagating in thin plates, as their quadratic dispersion at low frequencies mimics the dispersion relation of quantum systems governed by Schrödinger equation. Time-dependent excitation and measurement are performed at ultrasonic frequencies and reveal a periodic reconstruction of the initial elastic wave packet.
arXiv commentsubmitted to the special issue of EPJ ST in honor of scientific legacy of Roger Maynard
References in corpus (4)
- Observation of quantum state collapse and revival due to the single-photon Kerr effect
- Quantum wave packet revivals
- Superrevivals in the quantum dynamics of a particle confined in a finite square well potential
- Wave packet construction in two-dimensional quantum billiards: Blueprints for the square, equilateral triangle, and circular cases