Strings Double Slit Experiment

In summary, the conversation discusses the concept of strings in string theory and how it relates to the double slit experiment. It is suggested that strings, if they exist, are still quantum mechanical objects. The question of what happens to the string between emission and detection in the experiment is also raised, with the speaker questioning the purpose of string theory if this cannot be explained.
  • #1
rogerl
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If electrons are strings (in string theory), what happened to the string between emission at the double slit experiment and detection on the screen after it passes thru the 2 slits? Does the string splitted and joined again after the slits?

Before string theory, we just say particle properties like position don't exist before measurement. This is possible because electrons as point particle could not exist as such in its fundamental form. But with string, what does it mean the position doesn't exist before measurement? What happened to the string?
 
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  • #2
Don't be oversold by those pictures of little wiggly lines and circles! Strings, if they exist, are still quantum mechanical objects. Giving particles some kind of complicated structure at the Planck scale won't change that.
 
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Likes rai linga
  • #3
rogerl said:
If electrons are strings (in string theory), what happened to the string between emission at the double slit experiment and detection on the screen after it passes thru the 2 slits? Does the string splitted and joined again after the slits?

Before string theory, we just say particle properties like position don't exist before measurement. This is possible because electrons as point particle could not exist as such in its fundamental form. But with string, what does it mean the position doesn't exist before measurement? What happened to the string?

If physicists don't even know what happened to the strings between the emission and detector in the double slit experiment. Doesn't it defeat the purpose of the supposedly Final Theory? Why and why not?
 

1. What is the Strings Double Slit Experiment?

The Strings Double Slit Experiment is a thought experiment used to demonstrate the principles of wave-particle duality in quantum mechanics. It involves shooting a beam of particles, such as photons or electrons, through two parallel slits and observing the resulting interference pattern on a screen behind the slits.

2. How does the Strings Double Slit Experiment demonstrate wave-particle duality?

The Strings Double Slit Experiment demonstrates wave-particle duality by showing that particles can exhibit both wave-like and particle-like behavior. When the particles are observed going through the slits, they behave like particles, creating two distinct bands on the screen. However, when the particles are not observed, they create an interference pattern on the screen, behaving like waves.

3. What is the significance of the interference pattern in the Strings Double Slit Experiment?

The interference pattern in the Strings Double Slit Experiment is significant because it shows that particles can interfere with themselves, indicating that they have wave-like properties. This challenges the classical understanding of particles as solid, distinct objects and supports the idea of wave-particle duality.

4. How does the distance between the slits affect the interference pattern in the Strings Double Slit Experiment?

The distance between the slits affects the interference pattern in the Strings Double Slit Experiment by changing the spacing of the interference fringes on the screen. As the distance between the slits increases, the distance between the fringes decreases, resulting in a wider interference pattern.

5. Can the Strings Double Slit Experiment be performed with macroscopic objects?

No, the Strings Double Slit Experiment cannot be performed with macroscopic objects. This is because the wavelength of macroscopic objects, such as baseballs or people, is too small to produce an observable interference pattern. The experiment only works with particles with very small wavelengths, such as photons or electrons.

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