Theoretical quantum physics is very fundamental feature: at the quantum level, the atoms will not move while you measure them. Sounds ridiculous, but researchers from Cornell University have just proved that to be true.
The team noticed that the atoms in an extremely cold gas cloud of rubidium't move while being observed. The more the researchers used a laser to measure the behavior, the less observed movement. They had to, or reduce laser power or turn it off completely so that the atoms began to move freely.
This finding could have large implications for quantum computing. For example, it shows that quantum cryptography is supposed to work — the attacker simply would not be able to spy on your communication networks, as the observation data will have to destroy them.
And on top of all this the ability to stop the movement at the atomic level at will, which can lead to the development of quantum sensors and switches are so sensitive that they will react in the very moment as soon as the atoms start to slow down.
Of course, we are still far from being able to witness a quantum computer, but at least it is now clear that the concept behind quantum computing makes sense.published
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