# Tagged Questions

Use this tag for questions relating to the "wave-nature of particles" or the "particle-nature of waves" as they are often discussed in quantum mechanics, where a single object has properties of both classical particles and classical waves.

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### Light interference single particle 4 slits experiment - what are interpretations apart from many-worlds interpretation?

Someone knowledgeable about physics advised me to read a book "David Deutsch: The Fabric of Reality, 1997". The book gives experiment like two-slit one, difference is that 2-slits compared to 4-slits ...
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### How do (and donâ€™t) particles emerge from fields?

I am aware of the following field- and particle-like notions: QFT particle, a unit of excitation in (the Fock space of) a QFT; SR field, an extremal $A = A(\mathbf x)$ of a Lorentz-invariant action; ...
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### Modern interpretation of wave-particle duality

As far as I understand, in the early days of quantum theory there was quite a lot of debate over how to interpret what it meant for a quantum mechanical object to exhibit both wave-like and particle-...
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### Visualizing the (expected) gradual change from quantum to classical behavior

I'm pretty much a layman (no formal Physics education beyond high school) but find Quantum Mechanics endlessly fascinating. Ok, so when the double slit experiment is performed using photons/electrons/...
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### How does the interaction between individual electrons of beams affects the diffraction pattern?

Consider the diffraction of an electron beam. How does the interaction between individual electrons of beams affects the diffraction pattern? If it really affects the diffraction pattern, then is ...
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### Double-slit intensity distribution for particles

For waves, the intensity pattern for the double-slit experiment is given by the following equation (as of David Morin's notes on waves)  I(x) = I(0) \frac{D}{\sqrt{x^{2} + D^{2}}}cos^{2} \left ( \...
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### Light waves and water waves

I have an idea and i would like to have more information: If I drop a stone in the water some rings or waves will appear. Those rings are made of water and are behaving that particular way because of ...
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### Wave like behaviour

Sorry if this is a repeat but I'm curious if wavelength=h/p then does that imply that we would be able to observe the wavelike properties of a very still object? For example an average human weighing ...
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### Are there any other tests demonstrating wave properties besides interference and diffraction?

Are there any other tests demonstrating wave properties besides interference and diffraction? How about refraction? Does it show wave properties also?
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### Double slit experiment, detecting “particle direction” at the screen

This may be a stupid question, and I apologize if it is. With the double slit experiment, measuring which slit the electron came through causes it to act like particle. Instead, I wonder if it is ...
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### Question about the double slit experiment

If we measure a particle before it passes through the slit, would we see the particle or the interference pattern on the screen after the slits?
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### Do/May pure electromagnetic waves ( Non dual natured ) exist?

The light as well as all matter 'particles' show dual nature. But my question is if according to the Maxwell equations, Electromagnetic waves are valid events, can they actually exist in pure wave ...
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### Interference of waves

Every thing has a dual nature. So if we take waves(consider light interference) as particles, exactly what happens during interference (both constructive and destructive)? Can you explain in easy ...
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### Anyons as particles?

I'm trying to understand the basics of anyons physics. I understand there is neither a Fock space they live in (because Fock is just the space of (anti-)symmetrized tensor product state, see e.g. ...
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### possibility of interference of electrons during its transition from higher to lower state

They say an electron possesses dual nature (what we call wave-particle duality in order to relate with our everyday world). If it is an electron (definite particle) it too shows wave-like phenomenon ...