Scientists announced that they managed to observe entanglement in an unexpectedly large quantum system of 15 trillion atoms.

The phenomenon that occurs at the quantum level between the two atoms and causes an effect in the other when there is a change is called entanglement. In studies conducted to date, we have seen entanglement either in small groups or only between 2 atoms.

This phenomenon is at the core of quantum computers, quantum encryption and many other technologies that we hope to use in the future. For this, we need to know how the process works and how it can be manipulated.

Entanglement at 15 trillion atoms:
Generally, quantum entanglement is observed between a pair of atoms, which is very sensitive. Researchers isolate systems and cool them down to near absolute zero, so that the atoms forming the entanglement are not disturbed.

According to an article published in Nature Communications on Friday, the researchers raised the temperature of an atomic group up to 176 degrees. At this point, the researchers, who observed the entanglement between atoms, discovered that entanglement occurred between exactly 15 trillion atoms. This means 100 times more atoms than the largest entanglement ever observed.

Physicists measured the magnetization of the hot and chaotic gas cloud using lasers in the study. Thus, it was possible to observe the atoms that became entangled. The researchers stated that this ‘huge’ entanglement state lasted 1 millisecond.

The world record was broken:
The researchers say that milliseconds, which corresponds to 1 in 1,000 of a second, is a short time for us, but when we look at the atomic level, about 50 atoms collide in this time frame. This means that random events like these collisions do not disrupt entanglement.

Being able to observe quantum entanglement at larger scales will enable the development of large-scale magnetic field detection technologies in the future. In addition, studies to be carried out in this area are expected to lead developments in different areas.

Researchers are hopeful that their projects will come. The author of the article, Morgan Mitchell, hopes that such enormous entanglement systems will be used in future areas such as better sensors, artificial intelligence, brain imaging systems and autonomous cars.


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