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Quantic => quantum, as suggested
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Michelange Baudoux
Michelange Baudoux
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Sometimes, the slits are in the range of nanometers, but I often bump into comments saying you can try this at home with lasers and polarized glass. Recently, I even found clearly macroscopic pictures (eg. a bedromm wall) showing interferences of sunlight with itself.

So I wonder if macroscopic interferences are just analogous to the particle-level ones, or if, on the contrary, they have the very same causes and nature.

As I recently learnt (thanks to @anna v), light rays are emerging from the electromagnetic field, which itself comes from the superposition of a lot of photons' wavefunctions. Therefore, one could suppose that the answer to the question is : what you see at the macroscopic level (including sun light and lasers) comes from the electromagnetic field, not from the photon's wave function.

The problem is that you may observe a wave collapse (interferences disappearing) with the laser by neutralizing polarisation with a third polarized glass, which seems to indicate a typically quanticquantum behaviour...??? I'm puzzled.

Sometimes, the slits are in the range of nanometers, but I often bump into comments saying you can try this at home with lasers and polarized glass. Recently, I even found clearly macroscopic pictures (eg. a bedromm wall) showing interferences of sunlight with itself.

So I wonder if macroscopic interferences are just analogous to the particle-level ones, or if, on the contrary, they have the very same causes and nature.

As I recently learnt (thanks to @anna v), light rays are emerging from the electromagnetic field, which itself comes from the superposition of a lot of photons' wavefunctions. Therefore, one could suppose that the answer to the question is : what you see at the macroscopic level (including sun light and lasers) comes from the electromagnetic field, not from the photon's wave function.

The problem is that you may observe a wave collapse (interferences disappearing) with the laser by neutralizing polarisation with a third polarized glass, which seems to indicate a typically quantic behaviour...??? I'm puzzled.

Sometimes, the slits are in the range of nanometers, but I often bump into comments saying you can try this at home with lasers and polarized glass. Recently, I even found clearly macroscopic pictures (eg. a bedromm wall) showing interferences of sunlight with itself.

So I wonder if macroscopic interferences are just analogous to the particle-level ones, or if, on the contrary, they have the very same causes and nature.

As I recently learnt (thanks to @anna v), light rays are emerging from the electromagnetic field, which itself comes from the superposition of a lot of photons' wavefunctions. Therefore, one could suppose that the answer to the question is : what you see at the macroscopic level (including sun light and lasers) comes from the electromagnetic field, not from the photon's wave function.

The problem is that you may observe a wave collapse (interferences disappearing) with the laser by neutralizing polarisation with a third polarized glass, which seems to indicate a typically quantum behaviour...??? I'm puzzled.

Source Link
Michelange Baudoux
Michelange Baudoux
  • 41
  • 7

What is the admissible range of sizes or scales for double slit experiments?

Sometimes, the slits are in the range of nanometers, but I often bump into comments saying you can try this at home with lasers and polarized glass. Recently, I even found clearly macroscopic pictures (eg. a bedromm wall) showing interferences of sunlight with itself.

So I wonder if macroscopic interferences are just analogous to the particle-level ones, or if, on the contrary, they have the very same causes and nature.

As I recently learnt (thanks to @anna v), light rays are emerging from the electromagnetic field, which itself comes from the superposition of a lot of photons' wavefunctions. Therefore, one could suppose that the answer to the question is : what you see at the macroscopic level (including sun light and lasers) comes from the electromagnetic field, not from the photon's wave function.

The problem is that you may observe a wave collapse (interferences disappearing) with the laser by neutralizing polarisation with a third polarized glass, which seems to indicate a typically quantic behaviour...??? I'm puzzled.