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Results tagged with vacuum
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user 279551
A region of space devoid of any fluid molecules resulting in a zero pressure in ideal cases. In practice, even space has a small but finite number of molecules. In QFT, it signifies the ground state devoid of excitations/particles.
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Is free space a 'dielectric'?
The vacuum can be polarised, the polarisability depends on the applied field which itself is a function of distance. … Therefore, the field you might measure in order to determine the charge of an electron will vary with distance due to the different amounts of polarisation of the vacuum at the different distances. …
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