Quantum Tunneling Calculator

Calculate quantum tunneling probability, transmission coefficient, and penetration depth through a potential barrier.

Particle Energy

Barrier Height

Barrier Width

Particle Mass

Tunneling Probability

35.9%

Transmission Coefficient

0.36

Reflection Coefficient

0.641

Decay Constant (κ)5,123,000,000 m⁻¹

Penetration Depth0 m

Barrier Opacity (κL)0.512

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Formula

T ≈ e^(-2κL), κ = √(2m(V-E))/ℏ

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