3 ms·
> Sure the equipment is specialized but not much more than e.g. the electronics that you need for a mobile baseband station Was under the impression that these
by A2017U1 8y ago
> Sure the equipment is specialized but not much more than e.g. the electronics that you need for a mobile baseband station
Was under the impression that these computers were supercooled down to near absolute zero otherwise they are overwhelmed by decoherence, this problem has been solved?
Achieving those temperatures is a fairly involved process.
- ThePhysicist 8y agoFor quantum cryptography you don't need qubits but entangled photons, and you need to be able to create pairs of these and measure the polarization of individual photons with high efficiency. Both of these things can be accomplished at room temperature (though there are technologies for photon detection that require cooling to very low temperatures).
- A2017U1 8y agoIntriguing, thanks for this. Really enjoy the topic but find it hard to parse some claims that come out. D-wave a while ago made some bold statements that were shot down by many respected in the field, yet they seem to be progressing still and putting out papers. Simply measuring power in qubits seems to be not the entire story yet most reporting on the subject often boils down to that. I should read up more.