The reflected wavefunction refers to the portion of the wavefunction that bounces off a potential barrier or interface, while the transmitted wavefunction is the portion that passes through the barrier or interface.
The reflected and transmitted wavefunctions are related by the reflection and transmission coefficients, which describe the probability of reflection and transmission, respectively.
In quantum mechanics, there is always a non-zero probability of both reflection and transmission, even if the barrier or interface is very high. However, the probability of complete reflection or transmission can be very small.
The energy of the incident particle affects the reflected and transmitted wavefunctions through the relationship between energy and momentum in quantum mechanics. Higher energy particles have a greater momentum and thus a higher probability of transmission through a potential barrier.
The behavior of the reflected and transmitted wavefunctions is influenced by the shape and height of the potential barrier or interface, as well as the energy and properties of the incident particle, such as its mass and spin.
