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The wavefunction is a mathematical function that describes the quantum state of a particle, including its position and momentum probabilities.

Quantum tunneling is the quantum mechanical phenomenon where particles move through a potential barrier that they classically shouldn't be able to pass.

A potential barrier in quantum mechanics is an energy threshold that a particle would not have enough energy to cross, according to classical physics.

Tunneling probability is the likelihood that a particle will tunnel through a barrier, governed by the parameters of the barrier and the wavefunction of the particle.

Barrier height refers to the energy level of the potential barrier. Higher barriers are less likely to be tunneled through by a particle with a given energy.

Tunneling current is the flow of particles that have tunneled through a barrier and is a critical concept in quantum electronic devices like tunnel diodes.

The Heisenberg Uncertainty Principle states that the more precisely the position of a particle is determined, the less precisely its momentum can be known, and vice versa.

The Schrodinger Equation is a fundamental equation in quantum mechanics that describes how the quantum state of a physical system changes over time.

A quantum well is a potential well confining particles in the quantum scale, often allowing for discrete energy levels and thus affecting the tunneling phenomenon.

Barrier width refers to the physical extent of the potential barrier that a particle may tunnel through. It is inversely related to the probability of tunneling.

Resonant tunneling occurs when a particle tunnels through a barrier at specific energies that correspond to the quantized energy levels within the barrier, allowing for higher tunneling probability.