The Big Bang Theory

Wave-particle duality

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The wave-particle duality is the scientific fact that every particle in the universe exhibits the properties of not only particles, but also waves. Initially, with Einstein's works and others, the wave-particle duality was seen only in the light, it behaves like waves or as a stream of particles that we call photons, depending on the experiment to analyze it. However, confirming the hypothesis formulated in 1924 by Louis de Broglie, in 1927 two independent experiments, one conducted by George Thomson and another led by Clinton Davisson and Lester Germer, proved that electrons can also behave like waves.

Currently, physicists support the idea that all the types of particles that exist have wavelike characteristics, and vice versa. Moreover, the phenomenon was observed not only for elementary particles such as electrons, but also for composite particles like atoms and even molecules. However, wave properties for macroscopic particles are rarely detected, since the wavelength of the associated wave (called de Broglie wavelength) becomes too small to very massive particles.

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Mentioned in the Pilot episode.

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