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 exhibit 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.
Highlights
The European Physical Journal Special Topics and cavity quantum electrodynamics [13]
The Talbot effect has been identified as a classical spatial analog of the temporal quantum revival effect
Not all physical aspects of the quantum revival are captured by the Talbot effect
Summary
The European Physical Journal Special Topics and cavity quantum electrodynamics [13]. We report on the experimental observation of elastic wave packet revival in a thin plate.
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