[bradrn]

> extremely cold temperatures (267 °C)

Sorry?

(I have a feeling someone meant Kelvin, though 267 K is hardly ‘extremely cold’ either…)

[ginko]

Maybe a negative sign got dropped?

[nels]

Seems like you're right! [1]

[1] https://studyfinds.org/physicists-pull-off-quantum-teleporta...

[fhdkweig]

negative 267 C would be 6 Kelvin ???

[zifk]

That's pretty standard for experimental quantum systems. A lot run on helium fridges at 4K. The superconducting stuff even colder, in 10 mK dilution fridges.