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  2. Euler–Bernoulli beam theory - Wikipedia

    en.wikipedia.org/wiki/Euler–Bernoulli_beam_theory

    The natural frequencies of a beam therefore correspond to the frequencies at which resonance can occur. ... Theorem of three moments (Clapeyron's theorem) Three-point ...

  3. Larmor precession - Wikipedia

    en.wikipedia.org/wiki/Larmor_precession

    Larmor precession is important in nuclear magnetic resonance, magnetic resonance imaging, electron paramagnetic resonance, muon spin resonance, and neutron spin echo. It is also important for the alignment of cosmic dust grains, which is a cause of the polarization of starlight.

  4. Resonance - Wikipedia

    en.wikipedia.org/wiki/Resonance

    Resonance is a phenomenon that occurs when an object or system is subjected to an ... The formula is further related to the particle's decay rate by the optical theorem.

  5. Resonance (particle physics) - Wikipedia

    en.wikipedia.org/wiki/Resonance_(particle_physics)

    In particle physics, a resonance is the peak located around a certain energy found in differential cross sections of scattering experiments. These peaks are associated with subatomic particles , which include a variety of bosons , quarks and hadrons (such as nucleons , delta baryons or upsilon mesons ) and their excitations .

  6. Avoided crossing - Wikipedia

    en.wikipedia.org/wiki/Avoided_crossing

    In quantum physics and quantum chemistry, an avoided crossing (AC, sometimes called intended crossing, [1] non-crossing or anticrossing) is the phenomenon where two eigenvalues of a Hermitian matrix representing a quantum observable and depending on continuous real parameters cannot become equal in value ("cross") except on a manifold of dimension . [2]

  7. Resonances in scattering from potentials - Wikipedia

    en.wikipedia.org/wiki/Resonances_in_scattering...

    In quantum mechanics, resonance cross section occurs in the context of quantum scattering theory, which deals with studying the scattering of quantum particles from potentials. The scattering problem deals with the calculation of flux distribution of scattered particles/waves as a function of the potential, and of the state (characterized by ...

  8. Cavity perturbation theory - Wikipedia

    en.wikipedia.org/wiki/Cavity_perturbation_theory

    It is convenient to denote cavity frequencies with a complex number ~ = /, where = (~) is the angular resonant frequency and = (~) is the inverse of the mode lifetime. Cavity perturbation theory has been initially proposed by Bethe-Schwinger in optics [1], and Waldron in the radio frequency domain. [2]

  9. Mie scattering - Wikipedia

    en.wikipedia.org/wiki/Mie_scattering

    In such a scheme, the negative constitutive parameters are designed to appear around the Mie resonances of the inclusions: the negative effective permittivity is designed around the resonance of the Mie electric dipole scattering coefficient, whereas negative effective permeability is designed around the resonance of the Mie magnetic dipole ...