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How a Tardigrade “Micro Animal” Became Quantum Entangled with Superconducting Qubit
Hey, so–we cooled your boyfriend down to a hundredth of a kelvin above absolute zero. Yeah, it was so cold that all of the chemical reactions in his body ceased. Sorry. We, uh, yeah, we used him as a dielectric material in a tiny qubit. And then we quantum-entangled him with another qubit, just to see if we could. Sorry. Yeah, anyway, we thawed him out after two weeks and apparently he’s doing fine now. Didn’t really teach us anything about how quantum processes work in biological systems, but it sure was, uh, cool. If you’ll pardon the pun.
THIS POOR, POOR, TARDIGRADE (and every other tardigrade) would NOT EXIST without Cyanobacteria
Tardigrades are animals in the phylum/clade of Tardigrada, which is part of the clade Panarthropoda. Other members of Panarthropoda include Arthropods and Velvet Worms (Onychophora. I made a post about them recently). They are known for being able to survive in extreme conditions, and for (possibly) being the only living organisms that currently inhabit the moon (Tardigrades on the Moon - Wikipedia).
Just like all other animals, Tardigrades breathe O2 (though they can survive for a very long time in anoxic environments by going into a cryptobiotic state). All O2 that Tardigrades - and all other animals - breathe was originally produced by Cyanobacteria, which continue to supply all of us with our O2 to this day. O2 from these Cyanobacteria was also used in the Bereshit lander on which the aforementioned Lunar Tardigrades ventured to the moon.
So we’re just going to skip over the fact we quantum entangled a living thing then
QUANTUM ENTANGLEMENT WOULD EXIST without Cyanobacteria
Quantum entanglement is a phenomenon in physics (specifically quantum mechanics) where multiple particles become entangled such that the quantum stage of any of them cannot be described without also describing the quantum state of the others. This is true even when the particles are extremely far apart! The phenomenon has been demonstrated with various subatomic particles, but also with diamonds and even a Tardigrade!
Of course, since quantum entanglement has been around since basically the beginning of the universe, it considerably predates Cyanobacteria and is not impacted by them at all (although I would love to see some Cyanobacteria get entangled too!)