Is quantum entanglement faster than the speed of light? On what basis?

The quantum entanglement discussed by Einstein and Bohr refers to the fact that two particles, before observing it, are in a superposition state, as for what this superposition state looks like, how it is superimposed, whether it is linear superposition or nonlinear superposition, whether the superposition state of the two particles is the same or different, it is not the point, the point is that the superposition state cannot be observed, and once observed, the superposition state will collapse into a definite state.

Quantum entanglement refers to the fact that when the superposition state of one particle collapses due to an alien measurement, the superposition state of another particle, even if there is no external measurement, collapses due to entanglement. What the state of the two particles after collapse is not the focus of quantum entanglement.

Because the state collapse of the first particle is caused by external measurements, but when there is an external measurement, it is completely random, if the first particle does not send a message to tell the second particle, how can the second particle collapse at the same time as the first particle? How does it know that it should collapse at this time? At the same time, the transmission of information between them is, of course, over-distance.

Some people say that there is no information transmission in quantum entanglement, and it is purely nonsense to open his eyes, and Einstein challenged Bohr precisely because of the existence of information transmission over a distance in quantum entanglement. It has also been said that quantum entanglement cannot be used to transfer information between two observers, so it does not violate the theory of relativity. This is also obviously unjustified nonsense.

Not to mention whether quantum entanglement can be used to transmit information to people, even if it can't, may I ask, the transmission of information over a distance between two people violates the theory of relativity, and the transmission of information over a distance between two microscopic particles does not violate the theory of relativity?

Is it necessary to distinguish whether the object of relativity is human or not, and the theory of relativity cannot be used if it is not a human being? Extra-distance information transfer between two particles does not violate the theory of relativity, so does the over-distance information transfer between two instruments made of particles violate the theory of relativity? If it is not violated, but these two instruments happen to be used to convey information to people.

In my opinion, quantum entanglement is beyond the speed of light, because time is not a problem in the operation of small space and large density, and the speed definitely exceeds the speed of light.

Einstein himself is strongly opposed to quantum mechanics, especially quantum entanglement, ghosts, and the effect of over-distance is even more difficult for Einstein, in fact, many people now think that quantum entanglement speed is faster than the speed of light, indicating that Einstein is wrong, but this is not the case, first of all, quantum entanglement is only a physical phenomenon, it itself cannot be used to transmit information, and the current application of quantum entanglement is only limited to the field of information encryption, and can not use quantum entanglement for faster-than-light communication.

Quantum entanglement may have exceeded the speed of light, as quantum entanglement represents mirror-like expression.

Do you know about quantum entanglement? At least 10,000 times faster than the speed of light! But it doesn't violate the theory of relativity?

The speed of light is generally said to be unsurpassable, which means that the transmission speed of matter, energy, information, etc. cannot exceed the speed of light in a vacuum, not that nothing can exceed the speed of light. Quantum entanglement, recently physicists at the University of Geneva in Switzerland have verified that the speed of signal transmission is faster than the speed of light through the study of entangled photons.

In the description of quantum entanglement, if a particle breaks in half and is far apart, when you detect one of them, the state of the other will still change immediately, as if the member systems have secret communication at the speed of light, thus contradicting the inference of special relativity that local objects cannot exceed the speed of light c in a vacuum. In 1935, Einstein and his colleagues criticized this idea and distanced themselves from quantum mechanics ever since. Limited by the theory of relativity, the speed of light has become the upper limit of the rate in many cases.

Physicist Nicholas Giessen and his colleagues have been working on quantum entangled states, and in the latest experiment, they separated a pair of entangled photons and sent them via fiber optics to two villages 18 kilometers apart. The photons pass through the detector during transmission, and the display of the detector and the final receiving station proves that the photons are still entangled after separation: they are in the same state of change, and there is no time difference between the changes.

When each photon arrives at its destination, they can instantly know the status of their "twin brother" without any direct contact. On this basis, the researchers made calculations and concluded that the communication signal for such an effect should act at least 100,000 times the speed of light, which almost all physicists would consider impossible.

The two photons are connected together in an experiment that defies time and space in nature, but the researchers believe that this result is not so much a violation of quantum mechanics as it shows how quantum mechanics can break our previous expectations and perceptions, and the process of finding loopholes is "like touching the sore spot with a finger". And this does not contradict quantum mechanics.

It is not as fast as the speed of light, and according to current research, no matter can exceed the speed of light.

Probably not, the speed of light is so fast that it is not visible to the naked eye, and quantum entanglement is completely incomparable.

The speed of quantum entanglement is not as fast as the speed of light, which is the fastest known existence right now.

So is there really nothing in the universe that can exceed the speed of light? It doesn't seem to be, the edge of the universe is expanding much faster than the speed of light.

Quantum entanglement refers to the fact that in quantum mechanics, there is a very special relationship between two or more particles, and even if they are separated from each other, there is still an inseparable connection between them. This connection is based on quantum states rather than random variables in classical physics. However, whether this connection can exceed the speed of light remains a point of contention in the physics community.

Some scientists believe that quantum entanglement enables faster-than-light communication, even in the presence of a large space between two quantum particles. This seems to conflict with the limitations of the theory of relativity, which states that information cannot travel faster than the speed of light. If quantum entanglement is beyond the speed of light, then secure information transfer and communication between two long distances can theoretically be achieved.

However, there are also many scientists who disagree, arguing that quantum entanglement does not enable faster-than-light communication. Although there is an interdependence between quantum states, the observation of one quantum particle does not affect the state of another quantum particle. This interaction can only pass between particles a type of information known as a "quantum correlation".

And this kind of correlation information is transmitted at the same speed as the speed of light, so it cannot exceed the speed of light.

Although the results of current research are not yet unanimous, most scientists tend to believe that quantum entanglement does not exceed the speed of light. At the same time, even if quantum entanglement cannot be used for communication, it is still a very important technology, and it can be used in fields such as quantum computing and quantum communication.

In conclusion, although quantum entanglement seems to have some mysterious effects, there is still no effective way to achieve faster-than-light communication in the exploration and research of scientists.

Quantum entanglement is indeed faster than the speed of light, because it does not transmit information, so it does not violate the theory of relativity, quantum entanglement refers to the phenomenon of particles entangled with each other, and eventually become a complete whole, which cannot be measured separately, in quantum mechanics, it does not take time for multiple particle states to change at the same time, so this speed is beyond the speed of light.

Speaking of this question, we must first clarify a few questions, the imagination of quantum entanglement is indeed faster than the speed of light, and it is also mentioned in There is a speed faster than the speed of light. However, although quantum entanglement is faster than the speed of light, it still does not violate the theory of relativity because it does not transmit information. And the so-called quantum entanglement that many people talk about is 4 orders of magnitude higher than the speed of light, but in fact it is just a misunderstanding.

Some people say that quantum entanglement is terrible, but in fact it is not. Quantum entanglement is just a phenomenon in quantum mechanics, which was originally a prediction, but then it was actually observed. The mechanism of quantum entanglement is also relatively clear and undoubted, mainly quantum mechanics.

The phenomenon of quantum entanglement

Quantum entanglement means that a multi-particle system can be chaotic or even entangled all the time, mathematically referring to the product of individual particles rather than the sum.

If the particles are entangled with each other, they will eventually become a complete whole, so it is not possible to measure only one particle individually, but all other particles become a whole. When you measure one of them, the others change accordingly.

According to quantum mechanics, it does not take time for multiple particles to change their states at the same time, and it is a real direct change, even beyond the speed of light.

However, if you think about it, quantum entanglement does not transmit information, it is just a random change process, and it is not the same as concepts such as the speed of light, so it cannot be said to violate the relevant theories of physics.

Whether it is the speed of light or quantum entanglement, it is a related concept in quantum mechanics, and many things look contradictory, but in the final analysis, there is nothing entangled.

Regarding quantum entanglement, you can think of it like this: put the left and right sides of a pair of shoes into two boxes, and then put the two boxes at opposite ends of the universe, and you open one of the boxes and find that the shoe is the left foot, and immediately you know that the shoe at the other end of the universe is the right foot. This perceptual speed is almost infinite, but it does not violate the theory of relativity, because the information transfer here should be calculated from the moment the shoes are separated, not the moment the box is opened.

<> fact, the information transfer mode of quantum entanglement is similar to this, and the transmission is calculated from the creation of a pair of entangled particles, rather than the detection of the particle's spin state, so there is no faster-than-light information transmission, which is much lower than the speed of light. The above is just an analogy for my sake of understanding, in fact, it is quite inappropriate, but I believe that this is the most understandable popular science language. The significance of quantum communication lies in the absolute security of information transmission, because the quantum state collapses after the quantum information is received once.

About the speed of gravitational waves: In the theory of general relativity, gravitational waves are indeed the speed of light, which was discovered by Einstein when he first got the equation for gravitational waves. At present, several detected gravitational wave events have been published, and the corresponding electromagnetic waves, that is, the signals of light, have been measured, so it is strongly proved that the speed of gravitational waves is consistent with the speed of light.

One will say that the mass of the photon is zero, and the other will say that the photon has a rest mass and a moving mass, but in fact, the photon is a microscopic particle with high-speed motion of micro-matter, micro-electricity, and micro-body, and it cannot be contradicted before and after!

Since no point in the space can be distinguished, discerned, or recognized, the space cannot be used as a reference. Since there is no motion and no velocity for any independent object without a reference, both motion and velocity are relative and must have a reference. There is a specific speed of specific matter, and there is a specific movement distance per unit of time, which also reflects the existence of specific time, and the specific photon moves 300,000 kilometers in one second, which shows that the specific photon has a specific time, not that the specific photon does not have a specific time, nor does it mean that the specific matter reaches the speed of light, the specific time is stationary, and there is no specific time, after all, the photon also belongs to the substance.

Assuming that the relative velocity of two different photons in the same direction must be close to zero, there is no such thing as a speed of light of 30 kilometers and seconds.

Quantum entanglement reveals that quantum mechanics violates the principle of locality. It is not possible to copy the quantum state of an unknown state at will, and it is not possible to transmit information faster than the speed of light. This is not feasible.

The principle is to accelerate particles to achieve the effect of exceeding the speed of light, and I think it is possible to exceed the speed of light.

The speed of quantum entanglement is much faster than the speed of light, but the particles entangled with each other do not transmit any information to each other, and it is impossible to achieve teleportation with quantum entanglement.