Introduction: This year's Nobel Prize in Physics was awarded to three scientists in the field of Quantum , one of whom was also the supervisor of Pan Jianwei - Anton Salinger . Their contribution lies in the demonstration of quantum entanglement through pioneering experiments, laying the foundation for quantum technology to open up a new era. For many friends, quantum entanglement is a very profound noun, let alone what its use is. Today, I will follow me and answer the following questions together to help you understand this magical science!
Quantum Entanglement Schematic
What is quantum entanglement? Wait, let’s take a look at what quantum mechanics
The famous physicist Feinman once said: “ I think I can say with confidence that no one understands quantum mechanics .”
What exactly is quantum mechanics and why is it so difficult? Since those who study it say such unconfident words. And for many friends, quantum mechanics does not need, because I have never heard of this thing whether it is buying groceries or moving things.
I believe that the following netizens’ perception of quantum entanglement is also our most true portrayal.
even takes advantage of the ordinary people's strangeness to quantum mechanics and their awe of this cutting-edge science. Many criminals have also made bad ideas, such as the previous sensational quantum fluctuation speed reading.
But it plays an important role in our re-understanding of the world, such as understanding why the sun shines, etc.
At the same time, quantum mechanics supports the foundation of the technology we see, such as the mobile phone chip we use, which is also the reason why mobile phones are smart. What is quantum entanglement in
?
Quantum entanglement is a very strange prediction in quantum mechanics. No one can explain it from a scientific perspective. It is called the miracle of science .
The so-called quantum entanglement is aimed at "entangled pairs". What happens to one particle will determine what happens to another example, no matter how far apart the two examples are.
Here we give a very simple example to quickly understand what quantum entanglement is.
Xiao Ming and Xiao Hong are very good friends, both of whom live in Beijing. One day, they had quantum entanglement, but Xiaohong went to the United States to study because of her study.
If it is normal, Xiao Ming needs to call Xiaohong long-distance call to know Xiaohong's status.
But because of quantum entanglement, Xiao Ming’s current state is Xiao Hong’s state. He only needs to pay attention to himself to understand the other party’s state clearly.
, and this perception will not be bound by distance. Even if the technology is developed one day, Xiaohong will take a spaceship to Mars or even further away, Xiao Ming will immediately know Xiaohong's status.
Einstein says this is " ghostly action ", a miracle in the scientific community, but Schrödinger says this is the most important feature of quantum mechanics. How important is quantum entanglement in
, and why should we study it?
quantum entanglement has been stuck in the theoretical stage because it is too magical. The three scientists who won the Nobel Prize in this year have begun to apply the theory closer to the application through experiments.
quantum entanglement also has a very broad application prospect. Let’s talk about its magic through quantum communication .
Now the information about making calls and surfing the Internet is transmitted via radio, with a propagation speed of 300,000 kilometers per second. If you only look at it on Earth, this speed is perfectly enough.
But if humans want to explore the starry sky, the speed of this information transmission will be completely insufficient. It takes 8 seconds to spread information from the sun to the earth, and it takes 3.5 years to reach the star closest to the earth, let alone flying out of the Milky Way star.
However, quantum communication is not affected by distance, which means that even if you are far away from other galaxies, you can instantly receive signals from the earth.
Not only that, but the current communication technology will experience signal attenuation during the propagation process, so it is impossible to propagate long distances.
quantum communication completely ignores the problem of distance. Distance will not affect its information transmission, and no matter how far it is, it will be received by information in seconds.
After listening to my introduction, have you updated your understanding of quantum entanglement?
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