vacuum fluctuation


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vacuum fluctuation

A fluctuation in the value of a quantity that is associated with the vacuum state having zero-point energy. The existence of vacuum fluctuations is a specifically quantum-mechanical effect. It is thought that quantum fluctuations in the early Universe were responsible for the large-scale structure in the Universe.
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A vacuum fluctuation was an even more remote possibility than the chances of a man-made elementary particle destroying the Earth, said Dr Allanach.
The question is, then, whether vacuum fluctuation models of the origin of the universe are or are likely to become plausible empirical explanations.
Theoretical work [1] has shown that vacuum fluctuations near a black hole's horizon are exotic due to curvature distortion of space-time.
In this experiment, the squeezed vacuum field is the bottleneck that leads to a redistribution of vacuum fluctuations, which can either slow down - if they are behind the bottleneck - or speed up - if they are ahead.
However, in the quantum electrodynamics it is well known that the sum of bare mass and the mass correction equals the electron mass and the mass correction is due to the interaction of the particle with vacuum fluctuations [11].
When the atom is placed in front of the mirror it interacts with its mirror image, which changes the amount of vacuum fluctuations to which the atom is exposed.
Superpartners might act to cancel the vacuum fluctuations from known particles, while extra dimensions may be able to absorb the excess gravitational effects of dark energy.
The problem with the liquid-ring pumps was constant vacuum fluctuations that were affecting product quality, Stephens says.
It is proposed that the tapered RF test article pushes off of quantum vacuum fluctuations, and the thruster generates a volumetric body force and moves in one direction while a wake is established in the quantum vacuum that moves in the other direction," the researchers wrote in the study.
An example on the related vacuum fluctuations was provided by Casimir [2] who predicted that two closely spaced metal plates will attract each other.
However, the main value of the experiment is that it increases our understanding of basic physical concepts, such as vacuum fluctuations -- the constant appearance and disappearance of virtual particles in vacuum.
Several decades ago, experimental verification of the influence of electromagnetic vacuum fluctuations on electron behavior prompted physicists to take seriously the possibility that similar quantum effects could occur in other situations.