tunneling


Also found in: Dictionary, Thesaurus, Medical, Legal, Idioms, Wikipedia.

tunneling,

quantum-mechanical effect by which a particle can penetrate a barrier into a region of space that would be forbidden by ordinary classical mechanics. Tunneling is a direct result of the wavelike properties of particles; the wave associated with a particle "decays" through a barrier—the amplitude decreases—but the amplitude of the wave on the other side of the barrier is large enough that there is a finite probability of finding the particle there. The theory of tunneling has been successfully applied to understand alpha decay, in which a heavy nucleus decays into a lighter nucleus and emits an alpha particle (helium nucleus).

tunneling

[′tən·əl·iŋ]
(quantum mechanics)

tunneling

Transmitting data structured in one protocol within the format of another. See tunneling protocol.
References in periodicals archive ?
The observation of dynamic tunneling in a well characterized atomic system opens the door to future studies on the role of decoherence in quantum phenomena.
The surprising result is that most of the time, tunneling photons arrive at a detector before those traveling through air.
Application Of Geophysics In Tunneling And Site Survey Activities
Montague Tunnel (Currently serves the M, N, R subway lines)--Service between Lower Manhattan and JFK & Jamaica using: the AirTrain/JFK route, the converted Atlantic Branch, new tunneling in Brooklyn, the Montague Street Tunnel, and MTA-NYCT Broadway and/or Nassau Line.
Tunneling is a non-native approach that links one FC SAN to another.
The idea that quantum tunneling can occur in sufficiently small magnets also has important technological implications as a fundamental barrier to ongoing efforts to pack increasing amounts of information on magnetic tapes or disks.
With an emphasis on tunneling, as well as on our proprietary 10-inch ON-Q Soaker Catheter, these new kits contain all of the components necessary for surgeons to provide the best possible post-surgical pain relief following large incision procedures," said Don Earhart, chief executive officer of I-Flow.
I didn't know how I'd feel when this happened, but it's a lot of relief,'' said Superintendent Cal Negley, on finishing tunneling between Hollywood and North Hollywood.
The MTA has committed to monitor the effects of tunneling on vegetation and wildlife all along the tunnel route.
More recently, tunneling electrons have attracted attention because of their central role in scanning tunneling microscopes (STMs), which enable scientists to image surface and molecules with atomic-scale resolution.
Service providers can choose to enable or disable tunneling capabilities for all their customers, or limit tunneling to particular customer sites.
He said tunneling has already been shown to be a financial catastrophe and said he hoped Pasillas' death would bring MTA's leadership ``to its senses.