Physicists have extended the conditions in which life can exist further than ever before.
In recent years, evidence has emerged that quantum physics seems to play a role in some of life’s fundamental processes. But just how it might do this is something of a mystery.
Now Rainer Dumke at the Nanyang Technological University in Singapore and colleagues have created an exotic quantum state called entanglement using a superconducting qubit and a microscopic animal, called a tardigrade. Along the way, the team have created the most extreme form of suspended animation ever recorded. “The tardigrade itself is shown to be entangled with the remaining subsystems,” they say.
In this condition, the tardigrade can be thought of as a purely dielectric element. Indeed, the researchers simulated their experiment by treating the tardigrade as a dielectric cube. Finally, having been in cryptobiosis for over two weeks, the team slowly warmed up the tardigrade while re-introducing it to ordinary atmospheric pressure. “The animal is observed to return to its active form, setting a new record for the conditions that a complex form of life can survive,” say the team.
France Dernières Nouvelles, France Actualités
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