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The Compton wavelength is a physical unit that governs the dispersion relation/energy-momentum relation of massive fields.
For a particle/field of mass , its Compton wavelength is the length
where denotes the speed of light and denotes Planck's constant. Correspondingly is also called the “reduced Compton wavelength”.
The inverse of the Compton wavelength appears as the mass term notably in the Klein-Gordon equation of the scalar field or the Dirac equation of the Dirac field.
The Compton wavelength corresponding to the mass of the electron is about fm.
Another length scale parameterized by a mass is the Schwarzschild radius , where is the gravitational constant. Solving the equation
for yields the Planck mass
The corresponding Compton wavelength is given by the Planck length
fundamental scales (fundamental/natural physical units)
Last revised on March 30, 2020 at 09:40:38. See the history of this page for a list of all contributions to it.