I kidnapped an alien civilization
Chapter 263 Double Slit Interference
Retreating! Decline all calls and visits, please do not disturb!
After sending the group text messages, Li Mo hesitated for a moment, opened the white list of mobile phone calls, and chose not to shut down the phone directly.
He is no longer the graduate student who used to get away with nothing.
Yanjing Mozi Science and Technology Laboratory has greatly increased its international reputation due to its research and development of black technology batteries. Every day, it receives many requests from domestic and foreign laboratories to apply for exchanges.
The affairs of Moxing Technology are even more busy. Although the second phase of Moxing battery factory has been put into operation, the production capacity is still far from meeting the demand of the market. The rich and powerful Moxing Technology has to continue to build new factories, and now factories 3, 4, and 5 are under construction. Plants 6, 7, and 8 are in the stage of site selection.
Due to the environmental protection properties of Moxing batteries, the battery factory will not emit any harmful substances, and according to the current production capacity, it can pay billions of profits and taxes every year, and can also provide thousands of jobs. Therefore, some far-sighted places extended an olive branch to Moxing Technology.
For a while, Li Mo had to answer a lot of calls in his daily tasks. After being overwhelmed by the disturbance, he gave up the right to choose the location of the factory. But those places that are dedicated to the people will send special personnel to wait at the gate of Moxing Technology. It made Xia Qing commute to get off work like an agent on a secret mission.
Li Mo took out a can of energy coffee from the backpack, drank it all in one gulp, and then closed his eyes to get rid of the complicated thoughts in his head.
After a long time, when he opened his eyes again, he had already entered the explosive liver mode.
The basis of quantum computers - quantum mechanics was produced at the end of the 19th century. Scientists found that there are more and more deficiencies in the description of microscopic systems in classical mechanics and classical electrodynamics.
Unlike macroscopic systems that can be truly described, microscopic systems are full of randomness that cannot be directly observed.
The famous Austrian physicist Schrödinger once proposed an experiment that all physicists hate, that is Schrödinger's cat. In the experiment, a poor cat was locked in an airtight container with a small amount of radium and cyanide by the murderous Schrödinger.
Due to the probability of the decay of the radioactive element radium, if the radium decays, it will trigger the organ to break the bottle containing the cyanide, and the poor cat will die immediately.
If the radium does not decay, the cat can continue to live.
Due to the existence of the box, humans cannot directly observe whether the poor cat is alive, so now the question is, is the poor cat dead or alive?
According to classical physics, one of these two results must happen in the box, the cat inside the box is either alive or dead, but the outside observer can only know the result inside if he opens the box.
In the quantum world, when the box is closed, the whole system remains in an uncertain wave state, that is, the cat is in a superposition state of life and death. When the experimenter opens the box, due to the existence of the observer, the quantum wave function collapses in the box, so the cat will appear in a real state.
That is, in the quantum world, the presence of an observer can affect the state of matter.
If Schrödinger's cat is just a hypothetical thought experiment, another horrifying experiment can better illustrate the magic of the quantum state.
This experiment is the double-slit experiment, which is a simple experiment to demonstrate the wave and particle properties of microscopic objects such as photons or electrons.
Scientists use experimental equipment to continuously emit single electrons through the obstacle with two gaps, and finally these electrons will fall on the screen for observation. After repeating this process many times, the observation screen shows Interference phenomenon, that is to say, the electron exhibits the nature of a wave during its movement. It can pass through two gaps at the same time in the form of a wave, and interference phenomenon with itself.
However, under the whim of an experimenter, this simple experiment became the scary experiment. He installed sensing devices that can observe electrons on both slits, so that he can know which slit the electrons have passed through.
Then a strange thing happened. When the sensor device was installed and the double-slit experiment was performed again, the experimenter was surprised to find that the interference fringes that should have existed on the screen disappeared, and the electrons only showed particle nature.
And when he removed the sensing device, the interference fringes of the electrons appeared again immediately, which showed that the electrons showed volatility!
That is, when someone observes an electron, it behaves as a particle. When the electron was unobserved, it exhibited volatility.
When he published this illogical experimental result in a paper in a journal, it aroused doubts from many colleagues. How can the behavior of electrons be affected by the observer?
In order to overthrow his experimental results, colleagues repeated his experimental process. To their surprise, the experimental results were exactly the same as those obtained by the experimenter, and the electrons would change their state of motion when they were observed.
This is metaphysics!, This electron is not scientific!
This unexplainable experimental result caused an uproar in the scientific community.
Subsequently, the scientists conducted an upgraded version of the double-slit interference experiment, that is, the delayed double-slit interference experiment, and the result was still the same.
Not reconciled, they did a more upgraded version of the experiment, the quantum erasure experiment. This time the scientists used photons as experimental objects.
Whether it is electrons or photons, no matter what experimental means the experimenter uses. The microscopic particles in the experiment are like thoughtful and omniscient elves. When there is no observer, they are wave functions. When they know that someone is observing it, they immediately only express Particles.
This horror experiment shocked the scientific community. Quantum scientists have proposed various explanations, the most famous of which are the Copenhagen interpretation and Richard Feynman's path integral expression. They try to explain it from the actual accuracy of the experiment and the mathematical path Such a strange phenomenon. It's a pity that in Li Mo's view, their practice has violated the taboo in physics, that is, to infer the cause from the result.
The same result can be caused by different reasons.
The reason why Li Mo is interested in this experiment is that he has vaguely felt that this experiment contains a way out for quantum computers.
At present, the difficulty of quantum computers lies in quantum chips, and the difficulty of quantum chips lies in how to maintain the core particles in the quantum state for a long time.
Most laboratories at home and abroad have adopted ultra-low temperature technology of -273 degrees Celsius to prolong the time that the core particles are in the quantum state, but once the number of core particles exceeds 58, the maintenance time of the quantum state will decrease exponentially. And expensive ultra-low temperature equipment also causes quantum computers to exist only in laboratories.
Now double-slit interference provides Li Mo with a brand new idea.
If a pair of particles in the state of quantum entanglement is selected, one particle is installed in the computer chip as the core particle of the quantum chip, and the other particle is placed in the magnetic field of the observer effect.
The core particles in the magnetic field will always remain in the quantum state due to the observer effect. According to the theory of quantum entanglement, the core particle that is paired with it in the quantum computer computing chip will always remain in the quantum state.
In this way, quantum chips suitable for use under normal temperature and pressure can be manufactured.
Since there is no need for a huge low-temperature cooling system, the quantum chip will be about the same size as an electronic chip, so it may even be applied to mobile devices. After all, the chips on mobile phones are now simplified from computer chips.
The thing to do now is to find this magic particle.
Thinking of this, Li Mo picked up the paper and pen. As a mathematician, the first thing he has to do is to use mathematics to explain the existence of such particles.
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