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A photon (from Ancient Greek φῶς, φωτός (phôs, phōtós) 'light') is an elementary particle that is a quantum of the electromagnetic field, including electromagnetic radiation such as light and radio waves, and the force carrier for the electromagnetic force. Photons are massless particles that can move no faster than the speed of ...
In physics, a magnetic photon is a hypothetical particle. It is a mixture of even and odd C-parity states and, unlike the normal photon , does not couple to leptons . It is predicted by certain extensions of electromagnetism to include magnetic monopoles .
Under the proper circumstances, the photon's magnetic fields effect is as strong as their electric field – as e.g. in solar cells. The discovery is a surprise, because it is not straightforward to derive the strong magnetic effect from the physical equations, and thereby indicate that this quantum mechanical effect would be interesting enough.
These classifications are based on the direction of the energy and momentum of the virtual photons and their contribution to the electromagnetic force. [2] Virtual photons can have a range of polarizations, which can be described as the orientation of the electric and magnetic fields that make up the photon. The polarization of a virtual photon ...
Photons are massless particles of definite energy, definite momentum, and definite spin. To explain the photoelectric effect , Albert Einstein assumed heuristically in 1905 that an electromagnetic field consists of particles of energy of amount hν , where h is the Planck constant and ν is the wave frequency .
The electromagnetic force is one of the four fundamental forces of nature. It is the dominant force in the interactions of atoms and molecules. Electromagnetism can be thought of as a combination of electrostatics and magnetism, which are distinct but closely intertwined phenomena. Electromagnetic forces occur between any two charged particles.
Photons that don’t easily interact with each other, for example, can be used in communication to offer near distortion-free transfer of information at light speed.
In quantum field theory, a force carrier is a type of particle that gives rise to forces between other particles. They serve as the quanta of a particular kind of physical field . [ 1 ] [ 2 ] Force carriers are also known as messenger particles , intermediate particles , or exchange particles .