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3answers
141 views

Are superposition quantum systems really in two pure states at once?

I know that quantum systems can have properties of waves as well as those of particles. Also, I know that the mathematical description of quantum states is probabilistic, i.e. $$\Psi = \frac{1}{\sqrt{...
0
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1answer
47 views

Does wave-particle duality rely on accepting the Copenhagen interpretation?

If you're a scientist that subscribes to the many worlds theorem, does that mean you do not accept wave particle duality? Seeing as MW postulates that the wave or particle form has always existed that ...
0
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0answers
75 views

What are Bohmian trajectories for a free electron?

A free electron, or any other quantum particle, has an uncertain position/momentum, according to Heisenberg uncertainty principle. The squared amplitude of the wavefunction determines the probability ...
1
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2answers
42 views

In a pilot-wave model, is knowing the position of the particle sufficient for predicting its behavior?

Suppose that we somehow exactly know the position of an electron before hitting the double-slit structure (for example we know it's 20cm away from the structure and it's closer to the left slit). In ...
0
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1answer
53 views

What is “quantized momentum transfer”, and can it account for the double-slit experiment?

In https://www.sciencedirect.com/science/article/pii/S0378437109010401, the author claims that the interference pattern obtained in the double-slit experiment does not need a wave description of ...
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3answers
163 views

Double Slit Experiment : Photon vs Electron

are the following statements correct: For Young's double slit experiment with electrons, the separation between two slits has to be smaller than the position uncertainty of the electrons. But no ...
1
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1answer
66 views

Magnetic field in double slit experiment using electron beams

Say I have an experimental setup like this for a double slit experiment using an electron beam instead of light. There is a magnetic field coming out from the plane of paper. So will we get an ...
0
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1answer
64 views

Holograms and Entanglement: Does recording an entangled signal in a hologram “observe” the entangled state?

Suppose I have two photons $A$ and $B$, which are entangled. As I have had it explained to me, entanglement works more or less as follows: I observe or measure $A$, and find $A=S_a$, where $S_a$ ...
2
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1answer
128 views

Does (Tomas) Bohr's modified double slit argument really doom Couder's quantum/classical fluid dynamics analogy?

I'm just an amateur, probably why I find the de Broglie/Bohm/Couder approach to QM compelling. But Copenhagen struck back: in a coincidence, Bohr's grandson is a fluid physicist who claims that ...
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2answers
106 views

In the double-slit experiment of electrons (observed by photons), is it correct to say the collapse is caused by the momentum of the photons?

I'm working off the article, The Double Slit Experiment Demystified. Disproving the Quantum Consciousness connection. I think it's well-written, but I'm not convinced about this part: So what is ...
37
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4answers
8k views

In the double-slit experiment, why is it never shown that particles may hit the space between or outside the slits?

In depictions of the double-slit experiment that model the photon or electron as a particle, i.e. when attempting to measure which slit the particle passes through, it always shows the particle ...
1
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1answer
102 views

Bohm's view of double-slit experiment, wave-particle duality

I gather that Bohm denies the notion that the act of measurement decides whether a photon will be a wave or a particle. Bohm's idea seems to be that the photon is always a particle with a real ...
1
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2answers
95 views

De Broglie Wavelength interpretation

I've just started learning about the double slit experiment (just in the short appendix section in Schroeder's Thermal Physics), and I'm extremely confused by this one thing: In it, out of basically ...
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3answers
64 views

Would the double slit experiment still yield the same results if the electron were travelling really slowly?

And I mean really slow. I don't know how this would even be done, but just a thought experiment. To explain why I ask this, the way I understand the phrase "we can't know the momentum and position ...
1
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4answers
129 views

Why do cylindrical waves create an interference pattern (and sphericals do not)?

I have read this: https://phys.org/news/2011-01-which-way-detector-mystery-double-slit.html It says that elastic scattering creates cylindrical waves, and that creates interference pattern, and the ...
1
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4answers
152 views

Quintuple slit experiment

What would be the outcome of conducting the following modified double slit experiment? Take the normal double slit experiment with a detector on the double-slitted wall, and behind it, add a second ...
0
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2answers
132 views

Higgs Mechanism and Wave-Particle Duality

According to Higgs Mechanism a particle acquires mass when it couples to the higgs field. Now consider Wave-Particle Duality. Suppose I am doing a Young's Double Slit Experiment using electrons. When ...
-2
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1answer
148 views

Cases of Double slit experiment [duplicate]

I'm a high schooler, and I want to clarify what I know about the double-slit experiment. I broke down the double slit experiment into 4 categories: particle w/one & two slit, and wave w/one & ...
3
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2answers
220 views

In double slit experiment, It's the wave function who represent particles, travelling?

I saw some videos that tend to show traveling waves to represent the photon/electron in a double slit experiment. Is it right? Because the space between the electron gun and the screen where these ...
-1
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1answer
74 views

Photons, wave-like character [closed]

Is it safe to assume photons really are not waves, per se? It would seem to make more sense if the electric and magnetic fields surrounding the photon are responsible for "wavelike" character, but in "...
2
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1answer
281 views

Question of size in double slit experiment [duplicate]

I have a few questions about double slit experiment. In order to get an interference pattern with electromagnetic waves, what is the relationship between widths and separation of slits with the ...
-1
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2answers
202 views

Questions about the Double Slit Experiment and wave-particle duality [closed]

Re: The Double Slit Experiment and wave-particle duality. Q1.1: Is this interpretation correct: When just one single particle (and no more) is sent through the two slits but is not measured, it shows ...
0
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1answer
56 views

Doubts on an equation concerning Young's double slit experiment

I had a doubt on finding the ratio of the width of the slits in the Young's Double-slit experiment. The ratio of the intensities at minima to the maxima is already given as $9:25$. Looking for a ...
1
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1answer
202 views

Corpuscular theory of light and Double slit experiment

Physicists would initially have attempted to explain Young's double slit experiment's results using the concept of light as a stream of particles, ryt? Can somebody tell me what these attempts were ...
2
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4answers
2k views

Double Slit Experiment. What effect does the detector actually cause?

When a quantum of light arrives at a double slit, it passes through both slits as a wave and arrives upon a second screen with the interference pattern of a single wave that has been split into two ...
-1
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2answers
63 views

particle wave duality [duplicate]

A single photon travelling within a single wavelength contains a dual nature, in that it can behave as a particle or a wave depending upon the chosen experiment or measure. When the duality behaves ...
0
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2answers
553 views

What would happen if the double-slit experiment was done under these conditions:

A gentleman on youtube called Tom Campbel, PhD, claims the following. If we perform the double slit experiment with 2 kinds of detectors, one which records the which path information about the ...
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3answers
1k views

Has the double slit experiment been conducted with electrons in a vacuum?

The double slit experiment is an example of electrons behaving as waves. I know that this experiment has been performed with only single electrons being propelled at the slits, and that the result of ...
0
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1answer
72 views

Could wave-particle duality not be duality, but a constant switching between particulate and waveform? [duplicate]

SO, I'm just an enthusiast who's been doing some reading - and I don't have the level of math training to get my answer from the equations - so I apologize in advance if this is a stupid question. I ...
4
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1answer
304 views

Double slit experiment - what is the amplitude of the interfering waves?

I would like to consider a situation in which we fire single particles, one after another. If I understand correctly asking about the amplitude does not necessarily make sense. Unless I am wrong, the ...
0
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1answer
238 views

Electron's behavior

I read in the double slit experiment which is done with electrons that they show wave-like behavior but when we have an observer the electrons change their behavior and show particle-like behavior. ...
0
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1answer
134 views

What happens when we measure the particle *before* the double slit?

Like the titles states, if we measure the particle before the double slit, like right after it gets shot out, do we see an interference pattern or clump pattern on the screen after the slits?
1
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1answer
225 views

What determines the wavelength for an electron slit experiment?

Say we have a double slit experiment. Besides the slit width, separation and distance from the detection screen, the color of light determines the fringe pattern spacing's. So red and blue have ...
0
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2answers
259 views

Question about the Double Slit Experiment with Single Particles/Photons

My question: In this version of the experiment, doesn't the single photon source's direction define which slit the particle passes through. Also, with reference to the apparatus described here, where ...
0
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1answer
137 views

Does the Higgs Boson have a superposition?

Do particles with mass have a Higgs boson in their make up? and if so, when the particle is as an electron and is a wave going unobserved through both slits, is it carrying a Higgs in the same state?
2
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1answer
210 views

Wave particle duality/double slit experiment

In double slit experiment, if flux of electrons are very low, then.. if one "observes" the electrons before it has reached the slit, it "behaves" as a particle and this is due to the interaction (...
0
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4answers
237 views

How does the Pauli exclusion principle apply to wave-particle duality?

Based on the Pauli exclusion principle , no two particles can have the same quantum state. However, in the double slit experiment with electrons (in which we observe wave-particle duality), at some ...
37
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4answers
7k views

How does the light source fire a single photon in the double-slit experiment

All the youtube videos I have seen on the double slit experiment broadly fall into one of the following three categories: Documentaries and fan made videos heavy on animation which 'admire' the wave-...
2
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3answers
612 views

Largest Mass Diffraction

I have read "Matter-wave interference with particles selected from a molecular library with masses exceeding 10000 amu" which claims to observe diffraction patterns in objects of around 10'000 amu. ...
-3
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1answer
113 views

Some perspective on two slits

I am not a physicist but i enjoyed the subject as a hobby and have my formal education in the field of computer science. If any of what follows is a big flaw in my understanding, I hope it will be ...
4
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1answer
234 views

Matter's wave-particle duality - true? [duplicate]

I had an interesting conversation with CuriousOne the other day about the question Experiment that demonstrates the wave-particle duality of electrons. I thought that wave-particle duality existed, ...
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1answer
2k views

Experiment that demonstrates the wave-particle duality of electrons

EDIT : You're about to read the first iteration of my question which is flawed. Please go to the end to see an illustration of what I meant to say. The phenomenon I was talking about is called ...
2
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0answers
169 views

Light passing through two sets of double-slits in tandem

Has anyone ever set up a double double-slit experiment - one in which a second double-slit is inserted at one of the bright spots of the interference pattern produced by the first one? The intensity ...
1
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0answers
70 views

Firing Single Photon [closed]

We know (or pretend to know) what will happen if we fire one photon at a time and let it pass through slit/slits. But what if we don't use slit/slits and fire photons one at a time at a screen? What ...
1
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1answer
782 views

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 ( \...
1
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3answers
508 views

Does an electromagnetic wave necessarily contain many photons? [duplicate]

I've often come across people saying from a quantum physics standpoint that an electromagnetic wave necessarily contains many photons. But doesn't the double-slit experiment conducted one photon at-a-...
1
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2answers
221 views

Evaluating double-slit experiment for wave-particle duality

Is it possible that the wave-like behavior of particles in double slit experiments is just an outcome of particle distribution? Can we regard or treat a normal or Gaussian distribution as wave-like? ...
1
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2answers
283 views

Observer in the double slit experiment with photons

In the double slit experiment with photons, the interacting observer is an instrument, detector… If you replace the detector with a piece of metal with the same mass as the mass of the detector, the ...
0
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2answers
1k views

Why do electrons/photons create an interference pattern in the double slit experiment? [duplicate]

So...if electrons and photons are both particles and they pass the two slits, why do they create an interference pattern as if they were waves? Now from what I've read, it's because of the ...
1
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1answer
367 views

Is double slit interference due to EM/de Broglie waves? And how does this relate to quantum mechanical waves?

I'm really confused about the fact that there seems to be two types of waves at play: the EM wave, which I understand to be an actual fluctuation of EM fields in space, and this other type of bulk "...