Matches in DBpedia 2015-10 for { <http://dbpedia.org/resource/Photon> ?p ?o }
- Photon abstract "A photon is an elementary particle, the quantum of light and all other forms of electromagnetic radiation. It is the force carrier for the electromagnetic force, even when static via virtual photons. The effects of this force are easily observable at the microscopic and at the macroscopic level, because the photon has zero rest mass; this allows long distance interactions. Like all elementary particles, photons are currently best explained by quantum mechanics and exhibit wave–particle duality, exhibiting properties of waves and of particles. For example, a single photon may be refracted by a lens or exhibit wave interference with itself, but also act as a particle giving a definite result when its position is measured. Waves and quanta, being two observable aspects of a single phenomenon cannot have their true nature described in terms of any mechanical model. A representation of this dual property of light, which assumes certain points on the wave front to be the seat of the energy is also impossible. Thus, the quanta in a light wave cannot be spatially localized. Some defined physical parameters of a photon are listed. The modern photon concept was developed gradually by Albert Einstein in the first years of the 20th century to explain experimental observations that did not fit the classical wave model of light. In particular, the photon model accounted for the frequency dependence of light's energy, and explained the ability of matter and radiation to be in thermal equilibrium. It also accounted for anomalous observations, including the properties of black-body radiation, that other physicists, most notably Max Planck, had sought to explain using semiclassical models, in which light is still described by Maxwell's equations, but the material objects that emit and absorb light do so in amounts of energy that are quantized (i.e., they change energy only by certain particular discrete amounts and cannot change energy in any arbitrary way). Although these semiclassical models contributed to the development of quantum mechanics, many further experiments starting with Compton scattering of single photons by electrons, first observed in 1923, validated Einstein's hypothesis that light itself is quantized. In 1926 the optical physicist Frithiof Wolfers and the chemist Gilbert N. Lewis coined the name photon for these particles, and after 1927, when Arthur H. Compton won the Nobel Prize for his scattering studies, most scientists accepted the validity that quanta of light have an independent existence, and the term photon for light quanta was accepted.In the Standard Model of particle physics, photons and other elementary particles are described as a necessary consequence of physical laws having a certain symmetry at every point in spacetime. The intrinsic properties of particles, such as charge, mass and spin, are determined by the properties of this gauge symmetry.The photon concept has led to momentous advances in experimental and theoretical physics, such as lasers, Bose–Einstein condensation, quantum field theory, and the probabilistic interpretation of quantum mechanics. It has been applied to photochemistry, high-resolution microscopy, and measurements of molecular distances. Recently, photons have been studied as elements of quantum computers and for applications in optical imaging and optical communication such as quantum cryptography.".
- Photon thumbnail Light_cone_colour.svg?width=300.
- Photon wikiPageExternalLink photon.pdf.
- Photon wikiPageID "23535".
- Photon wikiPageLength "97359".
- Photon wikiPageOutDegree "469".
- Photon wikiPageRevisionID "683740816".
- Photon wikiPageWikiLink Abdus_Salam.
- Photon wikiPageWikiLink Abelian_group.
- Photon wikiPageWikiLink Absorption_(electromagnetic_radiation).
- Photon wikiPageWikiLink Acceleration.
- Photon wikiPageWikiLink Advanced_Photon_Source.
- Photon wikiPageWikiLink Albert_Einstein.
- Photon wikiPageWikiLink American_Journal_of_Physics.
- Photon wikiPageWikiLink Angular_aperture.
- Photon wikiPageWikiLink Angular_frequency.
- Photon wikiPageWikiLink Angular_resolution.
- Photon wikiPageWikiLink Annalen_der_Physik.
- Photon wikiPageWikiLink Annihilation.
- Photon wikiPageWikiLink Anomalous_magnetic_dipole_moment.
- Photon wikiPageWikiLink Antiparticle.
- Photon wikiPageWikiLink Applied_Physics_B.
- Photon wikiPageWikiLink Arthur_Compton.
- Photon wikiPageWikiLink Arthur_H._Compton.
- Photon wikiPageWikiLink Atom.
- Photon wikiPageWikiLink Atomic_nucleus.
- Photon wikiPageWikiLink Augustin-Jean_Fresnel.
- Photon wikiPageWikiLink BKS_theory.
- Photon wikiPageWikiLink Ballistic_photon.
- Photon wikiPageWikiLink Baryon_number.
- Photon wikiPageWikiLink Beam-splitter.
- Photon wikiPageWikiLink Beam_splitter.
- Photon wikiPageWikiLink Biochemistry.
- Photon wikiPageWikiLink Birefringence.
- Photon wikiPageWikiLink Black-body_radiation.
- Photon wikiPageWikiLink Blackbody_radiation.
- Photon wikiPageWikiLink Boltzmann_constant.
- Photon wikiPageWikiLink Boltzmann_statistics.
- Photon wikiPageWikiLink Bose–Einstein_condensate.
- Photon wikiPageWikiLink Bose–Einstein_condensation.
- Photon wikiPageWikiLink Bose–Einstein_statistics.
- Photon wikiPageWikiLink Boson.
- Photon wikiPageWikiLink Brillouin_scattering.
- Photon wikiPageWikiLink C_parity.
- Photon wikiPageWikiLink Capacitor.
- Photon wikiPageWikiLink Category:Electromagnetism.
- Photon wikiPageWikiLink Category:Elementary_particles.
- Photon wikiPageWikiLink Category:Gauge_bosons.
- Photon wikiPageWikiLink Category:Optics.
- Photon wikiPageWikiLink Category:Photons.
- Photon wikiPageWikiLink Category:Quantum_electrodynamics.
- Photon wikiPageWikiLink Center-of-momentum_frame.
- Photon wikiPageWikiLink Center_of_momentum_frame.
- Photon wikiPageWikiLink Charge-coupled_device.
- Photon wikiPageWikiLink Chemistry.
- Photon wikiPageWikiLink Chlorine.
- Photon wikiPageWikiLink Christiaan_Huygens.
- Photon wikiPageWikiLink Circular_polarization.
- Photon wikiPageWikiLink Cis-trans.
- Photon wikiPageWikiLink Cis–trans_isomerism.
- Photon wikiPageWikiLink Coherent_state.
- Photon wikiPageWikiLink Coherent_states.
- Photon wikiPageWikiLink Complex_geometry.
- Photon wikiPageWikiLink Complex_number.
- Photon wikiPageWikiLink Compton_scattering.
- Photon wikiPageWikiLink Conservation_law.
- Photon wikiPageWikiLink Conservation_law_(physics).
- Photon wikiPageWikiLink Coulombs_law.
- Photon wikiPageWikiLink De_Broglie–Bohm_theory.
- Photon wikiPageWikiLink Degenerate_energy_level.
- Photon wikiPageWikiLink Degenerate_energy_levels.
- Photon wikiPageWikiLink Diffraction.
- Photon wikiPageWikiLink Dirac_equation.
- Photon wikiPageWikiLink Dispersion_(optics).
- Photon wikiPageWikiLink Doppler_effect.
- Photon wikiPageWikiLink Doppler_shift.
- Photon wikiPageWikiLink Double-slit_experiment.
- Photon wikiPageWikiLink EPL_(journal).
- Photon wikiPageWikiLink EPR_paradox.
- Photon wikiPageWikiLink Edward_Andrade.
- Photon wikiPageWikiLink Effective_mass_(solid-state_physics).
- Photon wikiPageWikiLink Electric_charge.
- Photon wikiPageWikiLink Electric_field.
- Photon wikiPageWikiLink Electric_polarization.
- Photon wikiPageWikiLink Electrical_conductivity.
- Photon wikiPageWikiLink Electrical_resistivity_and_conductivity.
- Photon wikiPageWikiLink Electromagnetic_field.
- Photon wikiPageWikiLink Electromagnetic_force.
- Photon wikiPageWikiLink Electromagnetic_four-potential.
- Photon wikiPageWikiLink Electromagnetic_interaction.
- Photon wikiPageWikiLink Electromagnetic_radiation.
- Photon wikiPageWikiLink Electromagnetic_wave_equation.
- Photon wikiPageWikiLink Electromagnetism.
- Photon wikiPageWikiLink Electron.
- Photon wikiPageWikiLink Electron–positron_annihilation.
- Photon wikiPageWikiLink Electroweak_interaction.
- Photon wikiPageWikiLink Elementary_particle.
- Photon wikiPageWikiLink Emission_spectrum.
- Photon wikiPageWikiLink Energy.
- Photon wikiPageWikiLink Energy_level.