Double slit experiment Definition and 484 Threads

I was wondering if the double slit experiment had been conducted in space away from interference from Earth's magnetic core/field. I know the scientific community would have considered all variables and would have set proper controls for this experiment but I am unable to find any notes on this...

Has the double slit experiment ever been performed with an adjacent reflection? With quantum weirdness I'm curious as to whether the reflection would give the same results as the actual apparatus as to which slit the particle wen through.

WARNING. I'm not a physicist! If there was a universe that only had 10000 photons and we observed all of them then ran the double slit experiment would we get a normal pattern or an interference pattern? If we observe a particle is that it forever in the universe that we happen to be running...

The results of the double slit experiment lead to the conclusion that a photon travels as a wave. Question 1: Is it possible to track the journey of the photon? It seems to me (correct me if I'm wrong) that from the moment we release the photon till contact with the detector we don't know what...

Can someone please point me to an experiment (photons/electrons/whatever) where detectors were placed on both slits, this seems like a really big hole in the experiment if they stopped at having just the one detector. (Excuse the pun)

About how far apart can the slits get, in the double slit experiment, and still show the interference pattern?

I am wondering if there are some views on this. One of the key mysteries of the double slit experiment boils down to when the observation mechanism is placed by one of the slits - and switched on it triggers the change from wave-like outcomes to particle-like outcomes. Is it the observation or...

Is there an electric or magnetic field from the electron present in the deconstructive regions of the electron interference pattern?

I've been reading up a lot on the double slit experiment recently (and I'm no physicist at all). Although I haven't really seen the experiment done with my own eyes, from the demonstrations on youtube it seems as though the pattern when shining a laser through the slits is constant and solid...

I'm just a layman with an interest in science, so my terminology won't be accurate. Sorry. Set up for question: the wave-front splits as it passes through the slits and must (I guess?) condense to a point upon impact with the recording device (paper/film etc). The question: if a photon is...

Hi Folks, I am not sure I can appreciate the quantum weirdness that supposedly exist because I do not fully understand the experimental set-up of the double slit experiment. I watched the following which left me with some unanswered questions I have some questions about the experimental...

What is the experimental outcome of a single photon or electron double slit experiment under the constraint that after each detection the detector material is reset to the original state ie, in the limit it is substituted by another detector sheet, or photographic plate. Of course that the...

A few question about the double slit experiment... I have watched many videos and discussions about this experiment and am curious if anyone has ever varied the slits... What happens if one slit is vertical and one horizontal? If they are closer together or further apart? One fat and one...

hey! Whats the difference between the intencity graph of diffracted blue laser light and diffracted red laser light? Thanks

"An interaction is required to manifest physical reality because it creates distinctions." my friend referring to the double-slit experiment, is it true? He said that the physical world, in order to exist, we need to interact (with our senses) lol

Homework Statement A quasi-monochromatic beam of light illuminates Young's double-slit setup, generating a fringe pattern having 5.6-mm separation between consecutive dark bands. The distance between the place containing the apertures and the plane of observation is 7 m, and the two slits are...

Hey everyone, I was just wondering how the detectors on the slits operate. The ones which supposedly observe the particle without altering it's trajectory too greatly. I have no idea how this would work with a photon. I'm assuming it's easier with an electron or something.

I'm know I'm just an enthusiastic newbie here, but something's been nagging me and I would appreciate if I could get some assistance on the matter. I got a notion about light and the double slit experiment, the notion came to me as I was contemplating light traveling at its native speed. For...

Can @Drakkith , @Doc Al and others help me in this? In YDSE, if s is the size of source slit and S is the distance between source slit and the double slits, Then why condition s/S <= λ/d must be satisfied to observe fringes? Here λ is wavelength of light source and d is the distance between two...

What is the effect on the interference fringes in Young's Double slit experiment when the source slit is moved closer to the double slit plane? I have seen you people @DrChinese , @Cthugha , @bhobba helping in these kind of topic before. Can you help here? It would be great if others also can help.

First of all, I want to apologize ahead for three things: 1) Opening another tread about this experiment, with probably the same title than other 800 threads: I took a little time to read the other threads with similar titles and didn’t found this doubt in none of them, and also didn’t seem...

What happens if we cover 1 slit in the experiment? Will it become a single slit experiment?

Hey I'm curious if it would be possible to measure if a particle's spin is in a superstate similar to how the double slit experiment can show whether or not an electron's location is in a superstate. Wouldn't such a machine allow for FTL communications, since if we measure one of two entangled...

Hello, Theoretically any object can convert into black hole by compressing its mass below some radius( describe by Schwarzschild Radius). Suppose one of this object after becoming black hole have radius which is comparable to atoms and nucleus radius. Now my question is what will happen if we...

A question... Perhaps a dumb question... A simple question... or maybe not... In the experiment, why are the slits needed in the first place? If one shoots electrons, then the edges of the slit must therefore do something with them in order to make them act the way the do: the seem to...

Homework Statement Homework Equations slit width = a , slit separation = b = d (at photo), tanQ=h/L m.λ=b.sinQ λ.b=sinQ B=π.d.sinQ/λ α=π.a.sinQ/λ Iq=Imx(cosB)^2 x (sinα/α)^2// The Attempt at a Solution My first move was to find intensity but I have no idea about the probability of...

Hi, My question is the following: As well known, the interference pattern disappears when one determines which slit the photon has gone through. This also holds for atoms and molecules. Now I understand how the actual experiment works for eg. an atom: They send excited atoms that can decay in...

Hello, I have a questions regarding the double slit experiments using an electron beam. If I understand correctly, in the back measuring plate you will see little tiny dots of electrons colliding; however, the pattern exhibited will be similar to that of the one seen in a wave-like experiment...

If the double-slit experiment is done using an electron, and wave function collapse occurs, is the electron originally in a superposition all along before the experiment starts? I need clarification.

It is clear from some more advanced variations on the double slit experiment (quantum erasure, etc) that retaining or destroying "information" on one half of an entangled pair affects the result of the other. The results tend to either be wave or particle type behavior on a detection device. I...

Do I get this correctly: if a wave/particle is not measured, it is in the wave state, and if it is measured, it becomes a particle, fixated on an eigenstate of the probability distribution of the wave function. So the universe - matter, light, each natural phenomenon - if unmeasured, is in a...

Homework Statement [/B] we used a laser pointer as a light source Homework Equations I'm having trouble looking for an error in the experiment. The Attempt at a Solution

Hi all, I'd like to ask what was the first time the double- slit experiment have been made by electrons. In Brian Greene's film: It's said to be in nineteenth twentieth, while at other webpages as...

i would be interested in seeing dbl slit experiment done with different patterns. i.e. instead of slits circles or one slit one circle etc. has this been done

Homework Statement Young's double slit experiment 'd' - Separation between the two slits 'D' - Separation between the double slit and the screen 'S' - Source (Primary) (It is coherent) S1, S2 - Secondary sources Δx - Path difference between the two rays coming out from S1 and S2 Δx° - Path...

Are there any actual experiments that have been made where it has established if the naked eye can kill the interference pattern on the detector screen in the double slit experiment, that is, can the naked eye somehow function as a detector in this experiement? Let me give an example to clarify...

Hello all, I am just being introduced to quantum physics in my introductory physics course at university and I'm not sure I understand a couple of things...any clarification would be greatly appreciated. So, when looking at the double-slit experiment; what can be seen on the viewing screen...

Homework Statement m=maximum h=distance on the screen from the center of the pattern to the mth maximum D=distance from the central bright peak to the slits d=distance between two slits I have m=1 d(mm)=0.25mm D=2000mm h=0.5mm wavelength= 6.25E-5mm Homework Equations So I used...

Hello guys, I made this analogy for double slit experiment. I would like to share this idea and I would like to hear your opinions and ideas. Thank you. I apologize for any typos or bad grammar, I am not native english speaker. Here it is: Analogy for wave collapse I am using term KNOWER...

Hello All, I hope that this question has not yet been asked. I'm interested if the double-slit experiment has been conducted with more than one observer. I mean one (or more) "light-measuring devices" that have been set on every slit for the sake of verifying if the results come out...

Assuming that the double slit experiment creates interference patterns when electrons interact with themselves (or 'other' selves) from a parallel 'space' - one wonders if one can 'image', or at least gain more information about that other 'space' (dare I use the word 'dimension'?) in which the...

Why can we not be more precise when shooting stuff through the double slit, so that we know if it goes in the direction of one slit or the other? By the way, is there any significant difference in workings between single and double slit interference?

Homework Statement In a Younf's double slit experiment , the intensity of light at the centre of fringe pattern is I. If one of the two identical slit is now covered , the intensity at the cnetre ANS is 0.25I. Homework Equations The Attempt at a Solution In my opinion, it should...

Hi, can smart people please assist me with understanding something: why doesn't the "final" observation at the back screen create the same kind of effect as an observation made before the particle hits the back screen? Simple term please; no PhD here. Thanks.

Hello! For some time now I have been absolutely fascinated with quantum mechanics. Unfortunately for me, I am well aware that what I know of QM comes from over-simplifications specific to educational reading material and videos where a core goal of publication was to avoid the actual...

We all remember the animations describing the double slit experiment to the public, laying out the foundations of the mysterious quantum world. Now take the part when we try to determine which slit the electron went through. The narrator will say something like this, in a hushed voice: „And...

I just saw a video about the so called "Double Slit Experiment" () which showed that two lightbeams that are parrallel will manipulate each other just like waves in a pond would do. The slits used in this experiment were very close together but you could see them with your eye so I guess they...

I have a few problems understanding the double slit experience and the behavior of photos due to simple observation. I am not really looking for in depth explanation here (great if you have it) but more for links or references to read more about it. Here are some questions: 1. What does...

Consider the classical double slit experiment where we are shooting electrons trough a double slit and then capture them on a photographic plate. We know that the pattern of electrons on the plate will differ depending on the state of knowledge of the observer. If he make a measurement to find...

What would happen if the double slit experiment were to be undertaken using white light, and one of the slits was covered by a monochromatic filter (i.e. something which only one wavelength could pass through), and apart from this there was no detector monitoring which slit each photon was...