What conclusions did the double slit interference experiment reach? Why is it scary for scientists?

Science is the most effective means to break all supernatural phenomena, so will supernatural phenomena appear in scientific experiments?

As a result, the following mainstream views have been derived: 1. Copenhagen faction:

Before observation, the electron is interfering according to the wave function (not a cloud, which is just a mathematical description). And once we have observed, the wave function collapses, so that we can only observe the electrons passing through one of the slits, not the superposition before the observation. However, if this statement goes deeper, it puts the observer in a position beyond nature, and even encounters the interference of "consciousness".

Apparently we deduce from this that if we were not observing the world, then everything would be meaningless, just a diffusion of the wave function. And this is unacceptable to anyone who has been educated in materialist philosophy.

2。Multi-world explanation: The comrades in Copenhagen were so dizzy by the collapse that scientists hypothesized that superposition states are actually vectors in Hilbert space, leading to the following explanation:

The low-dimensional Hilbert space is not orthogonal, so the axes are projected against each other, resulting in a superposition of events. And a little observational intervention will inevitably make it a whole complex system, so as to reach a high-dimensional Greek space, and the possibility of orthogonality in high-dimensional cases is so great that the results we get are non-superimposed. In layman's terms:

When there are multiple possibilities in quantum mechanics with a certain probability, the universe forks, and every possibility of an outcome exists, but it exists in different universes and overlaps under certain circumstances. Take the above electron interference experiment as an example, that is, the electron was in a universe before it reached the double slit, but the universe bifurcated when it passed through the double slit, and the electrons in one universe passed through the A slit with a 100% chance and the other passed through the B slit with a 100% chance!

3。Decoherent Historical Explanation: Our description of historical events can be described by a density matrix, and only when our measurement target reaches a certain degree of roughness, can the matrix be decoherent, that is, the sum of the probabilities on the non-diagonal almost cancels each other out, so that we get a linear superposition.

And if we measure the target too finely, then we don't get a meaningful solution.

4。Spontaneous Localization: Your particles actually fill the entire universe, but in their current position is exactly where the sharp bell curve formed by the spontaneous localization of your particles is, so we see you sitting right now.

You'd be surprised to hear that, right? In fact, this is a natural corollary from this theory. This theory argues:

Particles are actually spontaneously localized (i.e., exhibited as measured states), and this occurrence is completely random, and when the number of particles reaches a certain level, this localization seems to be extremely common and constantly expanding (like dominoes), so that what is uncertain, what superposition states, can be "weirdly" explained by this theory. Unfortunately, many experiments today challenge this theory. /

The description of historical events can be described by a density matrix, and only when the measurement target reaches a certain degree of roughness, can the matrix be decoherent, that is, the sum of the probabilities on the non-diagonal almost cancels each other out, so that the result is a linear superposition. And if the target of the measurement is too fine, then you will not get a meaningful solution.

The reason for its horror is the double-slit interference experiment, in which when the observer appears, the interference of the light particles disappears and then becomes two stripes. As if these light particles do not like the attention of others, they appear when they see them, and they do not appear when they are not, which cannot but make people feel terrible suspicions.

Meaning: Parallel monochromatic light is projected onto a baffle with two slits, the slits are very close to each other, and the light waves of the parallel light will be transmitted to the slit at the same time, and they become two wave sources with the same vibration situation called coherent wave sources, and the light emitted by them is superimposed on each other in the space behind the baffle, and the interference phenomenon occurs.

When the monochromatic light passes through the double slit, it produces light and dark interference fringes on the screen. When the distance difference between the two slits somewhere on the screen is an even number of times the half wavelength, a bright stripe is formed. When the distance difference between two slits somewhere on the screen is odd times half a wavelength, dark streaks appear.

In this experiment, when the observer appears, the interference of the light particles disappears and then becomes two streaks. As if these light particles do not like the attention of others, they appear when they see them, and they do not appear when they are not, which cannot but make people feel terrible suspicions.

In layman's terms, online games have always been running non-stop in the eyes of players, whether I watch it or not, the game is there. Actually, it's not like that at all, and when I don't watch it, the game over there stops!

When someone starts looking at an object, the object starts emitting light that has the properties of particles, so we see. When no one is observing, the object becomes a wave.

It is explained by physical phenomena, and the previous supernatural claims are all rumors.

What is the electronic double-slit interference experiment, which is known as a scary reflection and a change of worldview, to be done, and how is it weird?

Double-slit interference experiments are not supernatural, they have been proven.

If you explain it in terms of ether, this problem is not difficult.

Double-slit interference. Phenomenon: During the experiment, the normal light streaks alternating between light and dark appeared, but when the observation device was installed, there were only two vertical strips of light. Analysis:

The composite molecular structure and gravitational pull of the observation device alter the molecular arrangement of the nearby air (ether), causing it to lose its diffraction propagation ability. The result of electron double-slit interference is the same because the force at electron B (ether), which is not firmly bonded by chemical bonds in the air molecule, is the smallest, and the force of crowding out the emitted electron A (ether) is the smallest, so electron A relies on strength to grab the position of B, and although B is squeezed out, but gets the power of A, it grabs the position of the electron (ether) in the molecule next to it that is not firmly bonded by chemical bonds, and this path is the easiest to vibrate, and it is also the path for air (ether) to propagate vibration, so the two kinds of interference have the same path. When a radio is broadcast, it is the same reason that a person walking by can interfere with the signal.

This way of preempting electrons is also the reason for the discontinuity of the radiation energy of the black body.

For a definition of Aether, see Titans Aether.

Science and physics cannot explain it, it can only be said that it does not exist.

This is sometimes a phenomenon that cannot be explained by science.

Young's double-slit interference experiment was proved by physical experiments.

Young's double-slit interference experiment is not supernatural, but physicists have proven it.

To know whether the results of an experiment are weird or not, you must first understand how the experiment is done, and many people on the Internet advertise the so-called double-slit experiment.

As soon as the Chinese observe the interference fringes, they disappear, and the particles seem to know when someone is observing it, and so on such mysterious popular science, in fact, they may not know how this kind of observation experiment is done at all, but people are also clouds of false rumors and gradually deify a scientific experiment, let's take a positive one.

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First of all,The so-called experiments that are often seen in popular science texts to observe which slit a photon passes through are not real experiments, it is just a basisQuantum mechanicsA virtual thought experiment. Humans have not done such experiments, or anyone has done them, but apparently they will not succeed (placing a camera does not make the interference fringes disappear). Below I will directly point out the misunderstanding of the double-slit experiment by ordinary people, after reading it, you will probably know why the double-slit experiment is not weird.

1. Observation will not make the stripes disappear. (It doesn't matter if you look at it with your eyes or shoot it with a video camera.) ）

2. Measuring the particle path will make the interference fringes disappear. (Regardless of the method used, the interference fringes disappear as long as the specific slit through which particle passes is measured).

3. Measuring the photon path is not about placing a camera next to it. (No camera can capture passing photons from the side).

4. In the classical double-slit experiment, the path information of photons can be measured by inserting polarized lenses, so that the same photon can only pass through one of the slits. (This makes the double slit interfere.)

The experiment was disguised into double single-slit diffraction.

Experiment) 5. The single-electron double-slit experiment can theoretically use photons to irradiate and measure passing electrons from the side, but during the measurement process, photons will inevitably interfere with electrons, and the more accurate the measurement, the photon energy required.

The larger it is, the greater the interference with the electrons, and the electron position is determined in advance during the measurement process, which collapses into a single particle, which can only pass through one of the slits. (This makes the double-slit interference experiment a double-slit diffraction experiment in disguise.)

6. The improved double-slit experiment: the measurement methods of the delayed selection experiment and the quantum erasure experiment are more complex and need to be explained in detail in a special article. You can follow the author to keep an eye out for article updates. What can be revealed in advance: still not weird.

In summary: interference fringes are not that the particle disappears when they find out that you are measuring it, but that your measurement makes the particle only pass through one of the slits and thus cannot form a double-slit interference fringe. In other words, it's the way you measure that makes it incapable of double-slit interference!

After you understand this, do you still think it is strange that "observation will make the interference fringes disappear"?

What's really weird about quantum mechanics is not that the measurement causes the interference fringes to disappear, because according to the above introduction, you can get this result with classical logic (the interference fringes disappear). What's really weird about quantum mechanics is that the particle is measured to the state it was in – the wave state, which is often referred to in quantum mechanics: superposition.

Again, this is not the subject of this article, and I will go into more detail about this weird superposition in future popular science.

Because the double-slit interference experiment is scientifically based, and this phenomenon is only a visual problem, some people say that it is not weird.

Many people think that such experiments are relatively normal, after all, there will be two phenomena in the experiment, and both of them appear randomly.

After all, with the intervention of a third party, then the result will change, just like Schrödinger's cat.

The center of the screen is a zero-level bright stripe, and the sides are parallel and evenly spaced light and dark stripes.

The characteristics of the fringes of the double-slit interference experiment are:

1. Light and dark stripes;

2. Stripes are arranged at equal intervals;

3. The intermediate level is low;

4. There is only one zero-level clear pattern;

5. In addition to the zero level, the other levels of orange terrestrial distribution are symmetrically distributed;

6. In the case of device determination, the longer the wavelength of incident light, the greater the spacing of dust stripes.

The horror conclusion of the double-slit interference experiment isFrom a particle point of view, there is no way to explain it. Because when the particle is in the half-lens 1, it will either take the path of reflection 1 or the path of 2, so how can it interfere in the half-lens 2? So it can only be explained by the wave explanation, i.e., it passes through two pathways at the same time.

In a single-photon experiment, if there is no half-lens2, a single photon is a particle, and if there is a half-lens2, then it is a wave again. Then, first of all, do not use the half-lens 2, if it can be done at the moment after the photon passes through the half-lens 1.

When the photon has a 50% probability of choosing path 1 or path 2, and the semi-lens 2 is added at the moment when it has not reached the half-lens 2, then the photon still has a 50% probability of going to detector 1 or detector 2 on the half-lens 2.

Characteristics of double-slit interference experiments

First, let's explain the experimental setup. A beam of monochromatic light passes through a semi-reflective half-lens, divides into two beams of light of equal intensity, and then meets at a position after being reflected by the mirror, if a semi-reflective half-lens is placed at this position, and the optical path difference of the two beams is precisely adjusted, then one of the two detectors can always get the light of interference superposition, and the other always gets the light of interference and depletion.

However, this is only an explanation, and in reality, we can see light as either a mere particle or a mere wave. Particle nature and wave are only two aspects of it, limited by human observation conditions, we either see particle nature or wave nature, which is one-sided.

Many people may mention quantum theory at this time, under the premise of quantum science, all objects are in a state of uncertainty, it is precisely because of the development of quantum mechanics that this experiment provides strong theoretical support, and we now know that quantum mechanics has become the focus of many physicists' research. I believe that in the future, quantum mechanics can solve more problems for us.

A beam of light passes through the two slits, leaving light and dark streaks on the slab behind. It's scary because these particles are like ghosts, if the particles are like a soccer ball, the ball will only fall in one place if it passes through one hole, but in the experiment the particles can pass through two holes and leave interference fringes on the plate that represent the waves.