| 词汇 | example_english_virtual-particle |
| 释义 | virtual particlecollocation in Englishmeanings of virtualand particleThese words are often used together. Click on the links below to explore the meanings. Or, see other collocations with particle. virtual adjective uk /ˈvɜː.tʃu.əl/ us /ˈvɝː.tʃu.əl/ almost a particular thing ... See more at virtual particle noun uk /ˈpɑː.tɪ.kəl/ us /ˈpɑːr.t̬ə.kəl/ a word or a part of a word that has a grammatical purpose but often has little or ... See more at particle Examples of virtual particleThese examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors. So, we come to the conclusion that virtual particles cannot spontaneously emerge from the vacuum, becoming real and observable, without violating energy conservation. Particles which appear with their anti-particles straight out of the vacuum, before disappearing again in accordance with the time-energy uncertainty principle, are called virtual particles. The virtualparticle transfers momentum from one particle to the other. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. As a result of there being fewer virtual particles between the two mirrors, the surrounding vacuum exerts a greater pressure from the outside and pushes the mirrors together. These virtual particles travel slower than the speed of light, and so the effective speed of the photons with a parallel polarization is reduced. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Nevertheless, every so often, a virtualparticle pair will spontaneously appear that straddles the event horizon of the black hole. The virtualparticle pairs will always have opposite momenta, in order to preserve momentum, and in addition, anti-correlated spin. To see how, we first remind ourselves that virtual particles are always appearing and disappearing, and that the characteristic difference between the virtualparticle pairs is typically very small. All this, together, implies that the decay of the gluino can only go through a virtualparticle, a high-mass squark. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The longer the virtualparticle exists, the closer its characteristics come to those of ordinary particles. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The mean decay time depends on the mass of the intermediate virtualparticle, and in this case can be very long. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. A virtualparticle that exists for an arbitrarily long time is simply an ordinary particle. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The pion (as a virtualparticle) is the primary force carrier for the nuclear force in atomic nuclei. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. However, the longer a virtualparticle exists, the more closely it adheres to the mass-shell relation. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. A virtualparticle is in a virtual state where the probability amplitude is not conserved. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. This could result in a virtualparticle crossing a large gap faster-than-light. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Interpreted as an amplitude for particle motion, this translates to the virtualparticle traveling faster than light. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Virtual particles appear and disappear in accordance with the uncertainty principle. As we know, the best vacuum we can form is still a seething mass of virtual particles of many different wavelengths. These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors. Want to learn more? Go to the definition of virtual Go to the definition of particle See other collocations with particle |
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