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- Virtual_particle abstract "In physics, a virtual particle is a transient fluctuation that exhibits many of the characteristics of an ordinary particle, but that exists for a limited time. The concept of virtual particles arises in perturbation theory of quantum field theory where interactions between ordinary particles are described in terms of exchanges of virtual particles. Any process involving virtual particles admits a schematic representation known as a Feynman diagram, in which virtual particles are represented by internal lines.Virtual particles do not necessarily carry the same mass as the corresponding real particle, and they do not always have to conserve energy and momentum, since, being short-lived and transient, their existence is almost exclusively subject to the uncertainty principle. The longer the virtual particle exists, the closer its characteristics come to those of ordinary particles. They are important in the physics of many processes, including particle scattering and Casimir forces. In quantum field theory, even classical forces — such as the electromagnetic repulsion or attraction between two charges — can be thought of as due to the exchange of many virtual photons between the charges.The term is somewhat loose and vaguely defined, in that it refers to the view that the world is made up of "real particles": it is not; rather, "real particles" are better understood to be excitations of the underlying quantum fields. Virtual particles are also excitations of the underlying fields, but are "temporary" in the sense that they appear in calculations of interactions, but never as asymptotic states or indices to the scattering matrix. Antiparticles have been proven to exist and should not be confused with virtual particles or virtual antiparticles.Note that it is common to find physicists who believe that, because of its intrinsically perturbative character, the concept of virtual particles is a frequently confusing and misleading one, and is thus best to be avoided.".
- Virtual_particle wikiPageExternalLink virtual-particles-what-are-they.
- Virtual_particle wikiPageExternalLink article.cfm?id=are-virtual-particles-rea.
- Virtual_particle wikiPageID "192316".
- Virtual_particle wikiPageRevisionID "605809333".
- Virtual_particle hasPhotoCollection Virtual_particle.
- Virtual_particle subject Category:Concepts_in_physics.
- Virtual_particle subject Category:Particle_physics.
- Virtual_particle subject Category:Quantum_field_theory.
- Virtual_particle type Abstraction100002137.
- Virtual_particle type Cognition100023271.
- Virtual_particle type Concept105835747.
- Virtual_particle type Content105809192.
- Virtual_particle type FundamentalPhysicsConcepts.
- Virtual_particle type Idea105833840.
- Virtual_particle type PsychologicalFeature100023100.
- Virtual_particle comment "In physics, a virtual particle is a transient fluctuation that exhibits many of the characteristics of an ordinary particle, but that exists for a limited time. The concept of virtual particles arises in perturbation theory of quantum field theory where interactions between ordinary particles are described in terms of exchanges of virtual particles.".
- Virtual_particle label "Cząstka wirtualna".
- Virtual_particle label "Flutuação quântica de vácuo".
- Virtual_particle label "Particella virtuale".
- Virtual_particle label "Particule virtuelle".
- Virtual_particle label "Partícula virtual".
- Virtual_particle label "Virtual particle".
- Virtual_particle label "Virtueel deeltje".
- Virtual_particle label "Virtuelles Teilchen".
- Virtual_particle label "Виртуальная частица".
- Virtual_particle label "جسيم افتراضي".
- Virtual_particle label "仮想粒子".
- Virtual_particle label "虛粒子".
- Virtual_particle sameAs Virtuelles_Teilchen.
- Virtual_particle sameAs Partícula_virtual.
- Virtual_particle sameAs Particule_virtuelle.
- Virtual_particle sameAs Particella_virtuale.
- Virtual_particle sameAs 仮想粒子.
- Virtual_particle sameAs 가상_입자.
- Virtual_particle sameAs Virtueel_deeltje.
- Virtual_particle sameAs Cząstka_wirtualna.
- Virtual_particle sameAs Flutuação_quântica_de_vácuo.
- Virtual_particle sameAs m.01b9p4.
- Virtual_particle sameAs Q849940.
- Virtual_particle sameAs Q849940.
- Virtual_particle sameAs Virtual_particle.
- Virtual_particle wasDerivedFrom Virtual_particle?oldid=605809333.
- Virtual_particle isPrimaryTopicOf Virtual_particle.