##  [Quantum Tunneling](/quantum-tunneling) 

  ##  [Quantum Tunneling](https://natural.quantumdictionary.io/quantum-tunneling-0) 

  

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**Natural & Formal Sciences Dictionary**

 







 

 

 

 



 

 

 

 

Definition

Quantum tunneling is the phenomenon by which a quantum mechanical wavefunction has nonzero amplitude across a classically forbidden potential barrier, allowing a particle to be detected on the other side despite insufficient classical energy.