Computers based on quantum creativity (Quantistic Creativity Computers), they will be usable in Qdroids only if they can function at room temperature. To achieve this, determinism must be abandoned.
It is not necessary to maintain consistency for a long time, but the statistical consistency given by the sum of the results produced randomly by a large number of attempts can be used. And that's exactly what all the systems we define do “natural” and in particular living organisms.
In practice, it is a question of exchanging quality for quantity and resigning oneself to the fact that at room temperature the quality is low (incredibly short consistency time). And then increase the number of attempts until sufficiently stable results are obtained, thanks to the well-known statistical law of large numbers.
Interestingly, the word "quantum" can refer to both quantized states and the tiniest possible levels, both the "quantity" of these levels and, being microscopic, they are always very numerous, that is the usual billions, of billions, of billions, etc..
Commercial quantum computers
Current quantum computers (for example that of IBM) they are based on the same mistake that humans stubbornly keep repeating, that is to want determinism at all costs (to see This Page).
So these computers weigh tons and consume tens of kilowatts just to stay cool. And with all that hardware, IBM manages to keep them consistent, that is deterministic, a few handfuls of Qbits for a few hundred microseconds. An exceptional result, very difficult to obtain, but only useful for making two or three specialized algorithms, generate prime numbers or decode passwords and messages, certainly not to give life to the Qdroids.
In this image we see the central core of the IBM quantum computer that manages to maintain fifty Qbits in a state of quantum coherence for 90 microseconds.
To keep the Qbits in a deterministic state, not affected by random changes, all the core components of these computers are kept at an incredibly low temperature a few millikelvins from absolute zero. Furthermore, since communications occur via microwave pulses that heat the components, you have to actively cool them with systems that weigh tons and consume a lot of energy.
From the moment you turn them on to when they become operational they pass over 72 ore, hundreds of times worse than the tube radios of our great-grandparents.