The double slit experiment involves passing light through two parallel slits to demonstrate that the light from one slit interferes with that from the other.

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Is it possible to produce coherent light with a thermal source? [closed]

Coherent light means monochromatic light and alle waves have the same phase difference. This is given for laser, where the resonator is a potential box and the outgoing waves have the same phase ...
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Why superpositions? [closed]

I've seen a lot of stuff on superpositions, namely the double slit experiment. And every video I watch, it tells me the same thing: It's amazing that when these particles are being observed they ...
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How to derive path difference ($\Delta l=d\sin \theta$) for double-slit interference?

The Wikipedia page for the double-slit wave interference experiment states that the path difference between waves diffracting from the two slits is equal to: $$ \Delta l=d\sin \theta $$ where $d$ is ...
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Double-slit experiment [closed]

Given the following wavelength: $\lambda = 1.75 \cdot 10^{-12}\ m$ This leads to the velocity of the electron (matter wave). First approach: $p = \dfrac{h}{\lambda}=m(v)v=m_e\gamma v$ [...] $v ...
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Double slit experiment: interaction with the environment

In order to recover the well-known interference pattern in the double slit experiment with massive electrons, one has to perform it in a vacuo. This is because, as far as I know, the interaction with ...
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Does the equation for a wave passing through two slits apply for particles as waves?

The standard equation for a wave travelling through a double-slit apparatus is $w=\dfrac{z\lambda}{d}$, where $w$ is the fringe spacing at the detector screen on the other side of the slits, $z$ is ...
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Double-slit-experiment but with unobserved alternating opening of slits. Does an interference pattern still arise?

Step #1 Imagine one preforms an electron based Double-slit-experiment and one does so with only one electron being fired at a time. Step#2 Also included in the experiment is an unobserved ...
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Two related questions about double-slit experiments moving at a relativistic speed

I was wondering as how would appear the interference pattern of a double-slit experiment moving at a relativistic speed v, 1) in the case of light and, 2) in the case wave matter (i.e. electrons for ...
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Query regarding interference

In Young's Double Slit experiment, why is it that two waves vibrating perpendicular to each other doesn't show interference? I know that for interference to happen, the waves must be coherent ( i.e., ...
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Probabilistic vs Statistical interpretation of Double Slit experiment

Why is it assumed that the results seen in the double slit experiment are probabilistic and not just a statistical result of some unknown variable or set of variables within the system.
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Negative wavelength in the double-split experiment

In the double-slit experiment, according to Wikipedia, the spacing of the fringes ($w$) at distance $z$ from the slits is given by $\displaystyle w = z\frac{\lambda}{d} \quad (\Leftrightarrow wd ...
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Double slit experiment collimating lens?

In some appratus for the Young's double slit experiment a collimating lens is used infront of the double slits, meaning plane wavefronts hit the double slits. But why do we need/want plane wavefronts ...
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What is the logic behind the thinking that electron must take a complicated path through the two slits?

Electrons moved in lumps, but unlike bullets, there was interference at the backstop. How? How can such an interference come about? Perhaps we should say: "Well, that means, presumably that it is ...
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Electron interference and light interference

In the double slit experiment I see that shooting electrons one by one after long time create a pattern that resembles that of light interference, but before these long time I see electrons at ...
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References for experimental results of the double-slit experiment

Every other popular science book and intro level text on QM starts with the double slit experiment. It is always just stated as a fact that experiments have been done, actual data is never presented ...
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Can we make a camera that fits in one of the bands of the double slit experiment?

So, in Young's double slit experiment, we see where the particle lands on the back wall. What if we were standing at the back wall, looking toward the slits? Could we gain more information not by ...
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Can an experiment be designed to distinguish between actual wave interference and probability or pilot wave results?

I am a physics groupie, so please excuse me if this question is stupid, but I am trying to better understand the particle/wave duality in quantum physics. It would seem that, in the double slit ...
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If outside a cylindrical solenoid exist an electrical field what does that mean to the Aharonov-Bohm Effect?

To the question "What is the electric field outside a cylindrical solenoid when inside is turned on a magnetic field" the answer is that outside exists a electric field. Does that mean that the ...
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Double slit experiment observation

In the double-slit experiment, if you shoot particles through the slits one by one and observe which slit they travel through, is there still an interference pattern on the screen behind the slits? If ...
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Quantum wave interference in 3d space

Why, in the double slit experiment, is there an interference pattern only along the horizontal axis and not along both axes?
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What is the nature of Young's Double Slit Experiment with detectors?

If a detector is kept at the two slits the fringes disappear. But, when the detectors are removes do the fringes come up immediately without any significant time lag? Can there be a way to switch on ...
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Young's DS experiment and most light sources

The reason why two independent bulbs cannot be used to create the young's two slit interference pattern is that the phase difference between those two sources varies very rapidly and therefore, the ...
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222 views

Do Photons interfere when it passes through a slit (one)? [duplicate]

When a light (photons) goes through two slits it creates interference patterns. if the light goes through a "single" slit, does it create interference patterns or does it behave like particles ...
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Basic Quantum Superposition

I'm looking to improve my understanding of quantum superposition. Consider the two-slit setup, where $|A\rangle$ is the state of the electron at the source, $|z\rangle$ is the state at some point on ...
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Can we see light as it 'interferes' with itself and produces the characteristic double-slit pattern?

This TED talk suggests that we can now watch as a beam of light propagates through a bottle filled with water. My question is: can we use this new technology to perhaps 'see' the photon as it makes ...
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Young's Double Slit experiment question

Q-A beam of light consisting of two wavelenghts 600 nm and 450 nm is used to obtain interference in Young's Double Slit experiment (YDSE). Find the least distance from the central maximum where the ...
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Young experiment: square of classical real wave function

I can't understand why the sum of two real waves result in a time dependent wave, but not so for the complex waves. In details, I can't get this passage on p.38-39 in A.C. Phillips, Introduction to ...
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How does the Fraunhofer irradiance distribution look for a double slit aperture of different lengths?

How does the Fraunhofer irradiance distribution look for a double slit aperture with $d$ = integer multiples of $b$?
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single photon/electron double slit experiment, resetting the detector material after each impact

What is the experimental outcome of a single photon/electron double slit experiment under the constraint that after each detection the detector material is reset to the original state ie, in the ...
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Would any interference maxima be missing in the double slit experiment? [on hold]

An aperture of 0.9mm of double slit forms a diffraction pattern on a screen placed 6.0 meters away when illuminated with light of wavelength 600 nm; the distance between two slits are not specified. ...
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Oberving a photon through double slits

If we send a particle with mass through the double slits we observe a interference pattern. That is of course if we don't observe which slit the particle goes through. If we do then we get two peaks ...
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The double slit experiment - methods used to observe single photons prior to striking the target

I can accept that when single photons are used in the double slit experiment that a diffraction pattern results at the target due to their wave property. What I am puzzled about is exactly what ...
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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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Fringe Localisation

How am I to understand where the fringes of a given setup are localised? For example, Young's double slits have non-localised fringes, that is the fringes are localised (and so are well formed) at ...
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How is a particle observed in the double slit experiment?

I'm having some trouble understanding what is causing so much confusion what this experiment is concerned. As I understand it it is thought that the wave interferes with itself when it's observed, ...
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When observing the electrons in the double slit experiment, does the light still appear as if it were a wave?

In the quantum double slit experiment it is said that observing the electrons causes them to appear as particles. Does this observation which causes the electrons to "transform" into particles also ...
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How do I interpret the math relating to diffraction?

The following is a quote from the Haifa Lectures (Mendel Sachs) But if both slits are open, the wave function for the electron penetrating screen S1 is the superposition of states, $(\psi_1 + ...
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So far, what has been proven about the definition of an observer? [duplicate]

I've seen people reason that nearly any particle could be an observer, causing electrons in the double-slit experiment to have definite locations. The idea of what exactly the universe/quantum physics ...
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In the Double Slit Experiment, does the measuring device collapse the wave function?

PLEASE READ Many physicist say that the measuring device collapses the electron wave function because it is firing photons in order to measure the electron position. So, what collapses the electron ...
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Light Lab Misunderstanding. Please help

For a Physics lab, this question was asked "As you learned, the wavelength and the separation of the sources affect the number of nodal lines produced. Using your results from steps 2 and 3, determine ...
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Comparing the Intensity of a Point on the Screen to the Central Max (Double Slit Experiment)

For (b), I know that the following equation will give me the ratio of the intensities: $cos^2(\frac{dsin(\theta)\pi}{\lambda})$ I do understand the theoretical basis behind the formula. However, ...
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Separation distance of bright fringes in double slit experiment

so I'm working on homework problem that seems like it should be pretty straight forward but the computer won't accept my answer. The question is below. A double slit aperture with slit separation ...
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How can Young's double slit experiment explain the wave nature of light?

I've been reading about wave theory of light and the famous experiment performed by Thomas Young. But how does this experiment prove that light is a wave ?
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Double Slit Experiment with a slanted slit

If you consider the dark spots on the pattern produced by the double slit experiment to maybe be a shadow of the slitless area of the dividing wall between and around the slits, as silly a thought as ...
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Quantum observation in the double slit experiment? [duplicate]

As far as quantum observation, when a human observes electrons going through the double whole experiment, have scientist tried having a blind person observe the experiment to see if the electrons ...
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Double slit experiment with slit material acting as a detector

Suppose the classic experimental setup of the double slit experiment. What is the probability that an electron does not pass through the slits? That is, for every single electron that comes from ...
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Alternate young double slit experiment

What will happen in young's double slit experiment, when instead of screen I put a black screen with a hole and a second screen behind the black one. Will it still form interference pattern albeit a ...
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What is the fringe separation in Young's double slit experiment?

In the double slit experiment, a pattern of dark and bright bands appears on the screen. Is the fringe separation the distance between two bright bands? Question: In a double slit experiment ...
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181 views

Double slit experiment

I can't understand the relation between Schrödinger's Cat and this amazing experiment of the double slit. It seems like in the double slit we know if we observe the particle the wave function ...
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Quantum eraser double slit experiment

In the quantum eraser double slit experiment, does the photon (or wavefunction) pass through one slit or both slits when different polarizers are placed over the slits?