Double slit experiment ratios

In summary, the conversation discusses a setup that uses fixed detectors and compares the number of detections at D0 to the sum of detections at D1 and D2. The setup also uses photon counters instead of a coincidence counter. The conversation also mentions the need for lenses to focus the beams and the use of a laser source with a filter. The focus is on calculating nuances of the source and the possibility of learning before getting stuck in single photon interference.
  • #1
calinvass
159
5
Here is a setup that only uses fixed detectors.
Will the ratio between the number of detections at D0 and the sum of the numbers detected on D1 and D2
be close to 1?
For this question instead of the coincidence counter, 3 simple counters are needed.
Also the detectors D1 and D2 need some lenses to focus the beams that exit the slits.
IMG_0530.JPG
 
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  • #2
I need more context to even start thinking about this!
 
  • #3
calinvass said:
Here is a setup that only uses fixed detectors.

Coincidence counter can't operate without some extra information.
 
  • #4
m k said:
Coincidence counter can't operate without some extra information.

But for the setup above the CC is replaced by photon counters. It says in the OP.
The detectors are supposed to capture most of the beams so that after some number n of photons entering the double slit, I suppose we will get n on D0 and n/2 for D1 and D2.
 
  • #5
It's the counter part, it needs feedback for deciding between rights and wrongs.
Word beam is also a bit problematic with word count.

Anyway, yes.
 
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  • #6
m k said:
...Word beam is also a bit problematic with word count.

...

I understand that for this kind of experiments you use a laser source which is a light beam that is then passed through a filter can let only a low amount of photon passing through in a given time. I suppose you first need to adjust the apparatus without the filter in place.
 
  • #7
I think it's generally much better to just forget the results part and concentrate to calculating nuances of the source part.
(formulas are well documented)

There's no real difference whether you get stuck in single photon interference now or later but if it's later you have a possibility to learn many things before that.
 
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1. What is the double slit experiment?

The double slit experiment is a classic demonstration in physics that shows the wave-particle duality of light. It involves shining a light source through two parallel slits and observing the resulting interference pattern on a screen. This experiment has been used to study the behavior of both light and matter particles.

2. How does the double slit experiment demonstrate wave-particle duality?

The double slit experiment shows that light can behave as both a wave and a particle. When the light source is shone through the slits, it creates an interference pattern on the screen, similar to how waves behave when passing through two narrow openings. However, when the experiment is repeated with individual photons being sent through the slits one at a time, the interference pattern still appears, demonstrating that light also has particle-like properties.

3. What is the significance of the double slit experiment?

The double slit experiment is significant because it challenges our understanding of the nature of light and matter. It shows that particles can behave like waves and waves can behave like particles, which goes against our classical understanding of physics. This experiment has also led to the development of quantum mechanics, which has revolutionized our understanding of the microscopic world.

4. How do the ratios in the double slit experiment affect the interference pattern?

The ratios in the double slit experiment, such as the distance between the slits and the distance to the screen, can affect the interference pattern by changing the spacing and intensity of the fringes. For example, increasing the distance between the slits will result in a wider interference pattern, while increasing the distance to the screen will cause the fringes to become closer together.

5. Can the double slit experiment be applied to other particles besides light?

Yes, the double slit experiment has been successfully performed with other particles, such as electrons and even large molecules. This further supports the idea of wave-particle duality and shows that the principles demonstrated in the experiment can be applied to a wide range of particles, not just light.

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