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November 19, 2021 Friday 12:05:42 PM IST

Atoms can be made Invisible – A Breakthrough by MIT Physicists!

Science Innovations

The new perception of Pauli blocking can be compared to a seating arrangement in a hall. When the seaters occupy random chairs with vacant chairs in between. This can be compared to the state of atoms at higher temperatures, were all the atoms can scatter light as a result they are visible. At the same time, in the hall if the seaters are seating together can be compared to the state of atoms at lower temperatures. In lower temperatures the atoms are crowded as a result all the atoms cannot scatter light. Hence these atoms are invisible!

Researchers at MIT found that when atoms are chilled and squeezed to lower temperatures can be made invisible. MIT physicists observed this effect in a cloud of lithium atoms. As the atoms were made colder, the atoms scattered less light and became progressively dimmer. The researchers suspect that if they could push the conditions further, to temperatures of absolute zero, the entire cloud would be invisible. This was a predicted fact 30 years ago and was not experimented so far. But now the MIT researchers take the pride of this new perception of Pauli blocking.