Reflection/refraction probability

In summary, Richard Feynman explains in his lectures on quantum electrodynamics that when light is incident on a surface, some photons are reflected and some are refracted. This is due to the random nature of quantum mechanics and cannot be controlled or predicted. Despite this, the predictions of quantum mechanics have been proven to be accurate.
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I was watching Richard Feynman's lectures on quantum electrodynamics where he concerned the probability of photon to be reflected or refracted.

It is about, that since light incident on a surface is partially reflected and partially refracted, and light consists of photons, then what determines some photons being reflected and some refracted in a monochromatic light incident on a surface of material with different index of refraction.

Is there an explanation of this phenomena?


43:45 - 48:00
 
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There is no way to choose which photons are reflected/transmitted - nor any way to control it for a given setup.

This is the basic random aspect of QM which disturbed Albert Einstein ... the only explanation is that that is what QM predicts, and the predictions work.
 
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1. What is reflection probability?

The reflection probability is the likelihood that a wave or particle will bounce off a surface when it encounters it. It is a measure of the strength of the reflection compared to the strength of the incident wave or particle.

2. How is reflection probability calculated?

Reflection probability is calculated using the Fresnel equations, which take into account the angle of incidence, polarization, and the refractive indices of the two materials involved. It can also be calculated using other methods such as the transfer matrix method or using computer simulations.

3. What factors affect the reflection probability?

The reflection probability is affected by the angle of incidence, the polarization of the incident wave or particle, and the refractive indices of the two materials involved. It can also be affected by the surface roughness and the wavelength of the incident wave or particle.

4. How does reflection probability differ from refraction probability?

Reflection probability and refraction probability are two different measures of the likelihood of a wave or particle being reflected or refracted at a surface. Reflection probability only takes into account the strength of the reflected wave, while refraction probability also considers the strength of the refracted wave.

5. Why is reflection probability important?

Reflection probability is important in understanding the behavior of waves and particles at surfaces. It helps in designing and optimizing optical systems, as well as in predicting the behavior of materials when exposed to different types of waves or particles. It also has practical applications in fields such as telecommunications, optics, and material science.

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