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Giorgio Dillon

Publications and source records attributed to Giorgio Dillon.

2 recordsLinked to original sources

Calculating the Dissonance of a Chord according to Helmholtz Theory

Following the ideas of von Helmholtz and Plomp-Levelt, an algorithm for calculating the total dissonance of complex sounds, free from logical inconsistencies and useful for comparing different chords, is proposed. The method is tested by comparing different tunings of the same major triad. Some interesting conclusions from this calculation may be drawn.

physics.gen-ph

Fourier Optics and Time Evolution of De Broglie Wave Packets

We prove that, under the condition of validity of the Fresnel approximation, diffraction and interference for a wave traveling in the z-direction may be described in terms of the spreading in time of the transverse (x,y)-wave packet. The time required for the evolved wave packet to yield identical patterns as given by standard optics corresponds to the time for the quantum to cross the optical apparatus. This point of view may provide interesting cues in wave mechanics and quantum physics education.

quant-ph