[From the fundamental principles of quantum mechanics to quantum IT, the ultimate application]
The Yamamoto Naoki Laboratory is doing research based on the unified concept of controlling quantum systems. This research ranges from the fundamental principles of quantum mechanics to quantum IT, the ultimate application of quantum mechanics.
Quantum mechanics is a theory developed to explain phenomena occurring among electrons and atomic nuclei, which cannot be explained by classical mechanics. In the early 20th century, the interpretation of quantum mechanics was the subject of extensive debate.
Even Einstein, who made major contributions to early quantum mechanics, doubted whether it was correct, as epitomized by his well-known comment, God does not play dice. Einstein adopted a skeptical attitude toward quantum mechanics with its probabilistic approach.
Q. The dice we see around us show well-defined states, a three or a four, say. But in the quantum mechanical world, dice can be in a vague intermediate state thats both three and four. This is called a superposition state. Things like that exist in quantum mechanics.
To date, there have been no experimental results that contradict quantum mechanics. In fact, people have proposed quantum IT, which makes use of the mysterious laws of quantum mechanics. Some quantum IT is even approaching the practical stage.
Q. Superposition states are extremely fragile; if you look at them, they collapse. If you take the example of the dice, the result comes out one or six, and the state thats neither a three nor a four collapses when you look. So we want to make such states stable, or keep them stable, by using feedback control, where you look gently, and get a weak result. The idea is that by doing this, you can create and maintain stable superposition states.
By using feedback control, its possible to create a situation where God does not play dice while obeying the absolute laws of quantum mechanics.
Q. If you want to know the position of an atom or electron, you have to look for it by shining a light. But the act of looking damages the quantum system. The instant you see it, the damage is done. So we can only know vague things about quantum systems, such as whereabouts something is. The question is how to see such things, and that means you have to shine the light carefully. In the dice example, we use an intermediate process: where is it likely to go between one and six? In other words, we track the process of change while we look. Our aim is to use the change process for feedback and control.
The researchers are currently doing experiments to test the proposed theory, in collaboration with a group led by Prof. Akira Furukawa at Tokyo University. The Naoki Yamamoto Lab is also getting ready to do experiments next year.
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since scientists dont understand the b haviour of the quantum world,could it b that the quantum world operates according 2 the OPPOSITE laws of classical physics?if this is so,then these scientists have tapped into the realm of the metaphysical.please remember leonardo da vincis' "learn 2 think in theoretical opposites."
Good video! Do you think a greater understanding of the dynamics of light and time could explain the paradoxes of quantum mechanics?
