de Broglie wavelength


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De Broglie wavelength

The wavelength γ = h/p associated with a beam of particles (or with a single particle) of momentum p; h = 6.626 × 1034 joule-second is Planck's constant. The same formula gives the momentum of an individual photon associated with a light wave of wavelength γ. This formula, along with the profound proposition that all matter has wavelike properties, was first put forth by Louis de Broglie in 1924, and is fundamental to the modern theory of matter and its interaction with electromagnetic radiation. See Quantum mechanics

de Broglie wavelength

[də¦brō¦glē ′wāv‚leŋkth]
(quantum mechanics)
The wavelength of the wave associated with a particle as given by the de Broglie relation.
References in periodicals archive ?
Drawing on our unique combination of expertise covering electron diffraction and few-cycle laser optics likewise, we will replace the photon pulses of conventional attosecond spectroscopy with freely propagating single-electron pulses at picometer de Broglie wavelength, compressed in time by sculpted laser fields.
Assume that the slits are narrower than one de Broglie wavelength (2[pi][r.
Doppler shows the origins of special relativity and the de Broglie wavelength, the basis of the Schroedinger Equation.
Examine these factors and see they contain the de Broglie wavelength that underlies QM, and relativistic energy and momentum that is the mass increase of special relativity.
This is the de Broglie wavelength, [Reference 5] with relativistic momentum.
Moreover, the use of sodium allows additional precision, since sodium atoms are heavier than helium atoms and therefore have a shorter de Broglie wavelength.