Classical electron radius
The classical electron radius is a combination of fundamental physical quantities that define a length scale for problems involving an electron interacting with electromagnetic radiation. It links the classical electrostatic self-interaction energy of a homogeneous charge distribution to the electron's relativistic mass–energy. According to modern understanding, the electron is a point particle with a point charge and no spatial extent. Attempts to model the electron as a non-point particle have been described as ill-conceived and counter-pedagogic. Nevertheless, it is useful to define a length that characterizes electron interactions in atomic-scale problems. The classical electron radius is given as (in SI units)
- Comment
- enThe classical electron radius is a combination of fundamental physical quantities that define a length scale for problems involving an electron interacting with electromagnetic radiation. It links the classical electrostatic self-interaction energy of a homogeneous charge distribution to the electron's relativistic mass–energy. According to modern understanding, the electron is a point particle with a point charge and no spatial extent. Attempts to model the electron as a non-point particle have been described as ill-conceived and counter-pedagogic. Nevertheless, it is useful to define a length that characterizes electron interactions in atomic-scale problems. The classical electron radius is given as (in SI units)
- Has abstract
- enThe classical electron radius is a combination of fundamental physical quantities that define a length scale for problems involving an electron interacting with electromagnetic radiation. It links the classical electrostatic self-interaction energy of a homogeneous charge distribution to the electron's relativistic mass–energy. According to modern understanding, the electron is a point particle with a point charge and no spatial extent. Attempts to model the electron as a non-point particle have been described as ill-conceived and counter-pedagogic. Nevertheless, it is useful to define a length that characterizes electron interactions in atomic-scale problems. The classical electron radius is given as (in SI units) where is the elementary charge, is the electron mass, is the speed of light, and is the permittivity of free space. This numerical value is several times larger than the radius of the proton. In cgs units, the permittivity factor does not enter, but the classical electron radius has the same value. The classical electron radius is sometimes known as the Lorentz radius or the Thomson scattering length. It is one of a trio of related scales of length, the other two being the Bohr radius and the reduced Compton wavelength of the electron ƛe. Any one of these three length scales can be written in terms of any other using the fine-structure constant : ƛe
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- Classical electron radius
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- enClassical electron radius
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- math.ucr.edu/home/baez/lengths.html%23classical_electron_radius
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- Bohr radius
- Category:Atomic physics
- Category:Electron
- Category:Physical constants
- Electromagnetic mass
- Electron mass
- Elementary charge
- Fine-structure constant
- Gaussian units
- Hendrik Lorentz
- International System of Units
- Klein–Nishina formula
- Point particle
- Proton radius
- Quantum electrodynamics
- Reduced Compton wavelength
- Renormalization
- Speed of light
- Thomson scattering
- Vacuum permittivity
- SameAs
- 233Sx
- Classical electron radius
- Jari-jari elektron klasik
- Klasický polomer elektrónu
- Klasický poloměr elektronu
- Klasični polmer elektrona
- Klasik elektron yarıçapı
- Klassinen elektronin säde
- Klassisk elektronradius
- Klasyczny promień elektronu
- m.04ws2q
- Q2152581
- Radi clàssic de l'electró
- Radio clásico del electrón
- Raggio classico dell'elettrone
- Raio clássico do elétron
- Raza clasică a electronului
- Класичний радіус електрона
- Классический радиус электрона
- نصف قطر تقليدي للإلكترون
- 古典電子半径
- 經典電子半徑
- Subject
- Category:Atomic physics
- Category:Electron
- Category:Physical constants
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- Classical electron radius?oldid=1114587746&ns=0
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- 5459
- Wikipage page ID
- 1362465
- Wikipage revision ID
- 1114587746
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