Linked from

The 13 pages that link to Multipole expansion, each with the reason it gives.

• Gravitational potentialRelated: It approximates distant gravitational potentials when a source is not perfectly spherical.

• Mie scatteringBroader topic: Mie scattering decomposes the sphere’s response into electric and magnetic multipoles.

• Magnetic dipoleNarrower topic: The dipole is the leading nonzero term for many localized magnetic sources.

• Electric dipoleNarrower topic: It places the dipole among the successive terms used to describe charge distributions.

• Point chargeRelated: It treats localized charge distributions through point-like contributions at long range.

• Legendre polynomialsRelated: Legendre polynomials express the angular dependence of axisymmetric potentials.

• Wigner–Eckart theoremRelated: Each multipole rank corresponds to a spherical tensor operator in transition calculations.

• Larmor formulaRelated: It generalizes point-charge radiation to extended sources with multiple changing moments.

• Dipole approximationNarrower topic: The dipole approximation keeps a leading term from this broader expansion and discards later terms.

• Faxén's lawRelated: Faxén corrections encode finite-size effects in a point-particle description.

• Legendre equationRelated: Legendre polynomials encode the angular dependence of axisymmetric multipole terms.

• Methods in electromagnetismRelated: It approximates distant fields using compact information about their sources.

• Multipole matrix elementsNarrower topic: It organizes interactions by multipole rank, identifying the operators whose matrix elements are needed.