Emit one lower energy Photon and

This means that the fields would no longer exist because there is no longer a photon to interact with them. This difference in perspective highlights the different ways in which classical and quantum theories explain the behavior of light and matter.
  • #1
jmatejka
128
1
Emit one "lower energy" Photon and...

I am aware of apparatus capable of emitting (1) photon at a time.

Suppose you emitted one "lower energy" photon, then quickly absorbed this photon?

At the time the photon was emitted, B and E field(s) were created, correct?

Are the B and E field(s) collapsed at the time of this single photons absorbtion?

Field(s) collapsed because of no photon left to interact with them?


Does the answer to this question vary according to Classical Electrodynamics or QED perspectives?

Any clarification is appreciated.
 
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  • #2
Yes, the answer to this question does vary depending on which perspective you take. From a classical electrodynamics perspective, the B and E fields created by the emitted photon would propagate until they dissipate, and the absorption of the photon would not cause them to collapse. However, from a quantum electrodynamics (QED) perspective, the B and E fields would be collapsed at the moment of the photon's absorption due to the uncertainty principle.
 
1.

What is a lower energy photon?

A lower energy photon is a type of electromagnetic radiation with a lower frequency and longer wavelength compared to higher energy photons. This means that it carries less energy and may have less impact on matter.

2.

Why would a photon emit at a lower energy?

A photon may emit at a lower energy due to a decrease in the energy level of an excited atom or molecule. This can occur through processes such as fluorescence, where an excited electron releases energy in the form of a lower energy photon as it returns to its ground state.

3.

What is the significance of emitting a lower energy photon?

The emission of a lower energy photon can have various implications depending on the context. In some cases, it may indicate a change in the energy state of a substance or a shift in the electromagnetic spectrum. It can also play a role in processes such as photosynthesis and energy transfer in biological systems.

4.

Can a lower energy photon be converted to a higher energy photon?

Yes, a lower energy photon can be converted to a higher energy photon through processes such as stimulated emission. This involves a photon interacting with an excited atom or molecule, causing it to release a photon with the same energy and phase as the original photon.

5.

How are lower energy photons used in technology?

Lower energy photons are used in various technologies, including solar cells, where they are converted into electricity. They are also used in communication systems such as fiber optics and in medical imaging techniques such as MRI, where they can interact with biological tissues and provide valuable information about their properties.

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