Medical Definition of Tunneling effect
1.
In quantum mechanics, a particle approaching a potential energy barrier of finite extent has a chance (usually small) of tunneling through the barrier, even though it lacks the energy to go over the barrier. Tunneling plays a strong role in fusion reactions: particles which do not have enough energy to climb over the electrostatic energy barrier (into the region where nuclear attractions dominate) can still fuse by tunneling through.
(09 Oct 1997)
Lexicographical Neighbors of Tunneling Effect
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