virtual particle

(redirected from Virtual photons)
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virtual particle

[′vər·chə·wəl ′pard·ə·kəl]
(quantum mechanics)
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
What happens during the experiment is that the "mirror" transfers some of its kinetic energy to virtual photons, which helps them to materialize.
Virtual photons conserve energy and momentum during Wick rotation (vacuum energy and momentum contributions after tunneling must equal zero).
The SV waves for vacuum virtual photons can accordingly be characterized as follows or barrier positions at [h.sub.a] and [h.sub.b].
The momentum change mediated by the virtual photon transactions is the (complex) direction difference, [p.sub.i], between the ingoing and outgoing momentum (p [right arrow] pi, pi [right arrow] p) for the tunneling proton at barrier boundaries.
A second laser pulse made the gas transparent again, allowing the two virtual photons to escape and continue on their paths.
Because of the plates' electromagnetic properties, virtual photons of certain wavelengths can't appear in the gap.
The electromagnetic vacuum (EV) consists of the virtual photons mentioned in the first paragraph which lead collectively to the ZP electromagnetic field with which Section 5 argues that the EV has its origin in the PV.
the virtual photons that quickly appear and dissappear in space.
The virtual-particle field consists of virtual photons and massive virtual-particle pairs, the collection being the QV It is assumed that the structure of the PV and the ZP agitation of its PPs are responsible for the structure of the virtual-particle field, the corresponding average of the photon field being the ZP electric field in (2).

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