As you mentioned Landauer’s principal , I think because of that the quantum computer’s processors…
Biswaroop Bhattacharjee

Hmm, you may be right. I would assume that the low temperature is to keep the qubits from being influenced by their environment. But minimizing computational energy might be equivalent to minimizing the probability of external interaction with the system. That’s just me guessing, however.

Again, I’m really no QC expert or even physicist for that matter.