barrier penetration

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barrier penetration

[′bar·ē·ər ‚pen·ə′trā·shən]
(quantum mechanics)
The passage of a particle through a potential barrier, that is, through a region of finite extent in which the particle's potential energy is greater than its total energy.
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"This also answers the modern day problem of how Father Christmas reaches you if you don't have a chimney -- he simply uses quantum tunnelling to slide under the door, or through the cat flap."
"This also answers the modern day problem of how Father Christmas reaches you if you don't have a chimney - he simply uses quantum tunnelling to slide under the door, or through the cat flap."
A specialist in the field of wearable electronics and touch sensors, Peratech's Quantum Tunnelling Composite (QTC) materials change its resistance when even the lightest pressure is applied.
Computer modelling techniques, particularly those based on quantum theory, are now able to near-completely reproduce the laws of quantum mechanics for systems containing about 300 to 500 atoms, including phenomena such as quantum tunnelling.
Further afield, Peratech, a North Yorkshire company, demonstrated a combination of polymers and metallic particles called Quantum Tunnelling Composites, QTCs, which have remarkable properties that will enable robots to move on to the next generation.
The show was hosted by David Lussey, inventor of Quantum Tunnelling Composite (QTC), an electrical insulator which looks like rubber and can be turned into a conductor by applying even the slightest pressure.
Sepulveda, "Effects of the generalised uncertainty principle on quantum tunnelling," European Journal of Physics, vol.
This is called quantum tunnelling, and it makes the seemingly impossible possible.
This space induced energy shift changes the potential energy barrier electron quantum tunnelling amplitudes in a reverse-biased Zener diode, Fig.
This includes the dual-slit experiment, orbital quantization, single-particle diffraction, zeeman splitting, quantum tunnelling and a host of other behaviors typically only associated with the mechanics far below the observable macro realm.
"Putting the nanotips so close together allows charge to flow via quantum tunnelling as the electrons are pushed from one side to the other." said the researchers.
But two German physicists claim to have forced light to overcome its own speed limit using a phenomenon called quantum tunnelling.

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