Quantum Gas Temperature Drops Below Absolute Zero
Physicists have created a quantum gas capable of reaching temperatures below absolute zero and paving the way for future quantum inventions. The chilly substance was composed of potassium atoms which were held in a lattice arrangement using a combination of lasers and magnetic fields. According to a news report in the journal Nature, by tweaking the magnetic fields the research team were able to force the atoms to attract rather than repel one another and reveal the sub-absolute zero properties of the gas.
“This suddenly shifts the atoms from their most stable, lowest-energy state to the highest possible energy state, before they can react,” said Ulrich Schneider of the Ludwig Maximilian University in Munich to Nature. “It’s like walking through a valley, then instantly finding yourself on the mountain peak.” Schneider’s findings were published in the journal Science.