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So we only need to invent actual quantum computers. Got it, easy.
by arcticbull 1mo ago
So we only need to invent actual quantum computers. Got it, easy.
- smallerize 1mo agoYes, but since R&D and funding are in a feedback loop now (promising results -> more money -> better results etc), it might only take a couple more years to get there. https://arstechnica.com/science/2026/06/amazon-quera-promise-useful-quantum-error-correction-by-2028/ https://arstechnica.com/science/2026/06/amazon-quera-promise...
- adastra22 1mo agoIt's more akin to "we only need to make reliable transistors to make classical computers." With the invention of the planar transistor, going from 1 transistor to 100 or 100k was not that big of a step, comparatively.
- heavenlyblue 29d agotransistors are local unit, qubits are not
- adastra22 29d agoTransistors connect to other transistors, directly or in switched arrangements. Qubits can be connected to other qubits likewise. E.g. a single photon emitter next to a nuclear spin qubit that can send an entangled photon through a beam splitter in a photonic switch, routing that entangled pair through fiber optic cables to other qubits where a combination of electric fields, filters, and occupied energy levels cause gate operations to be applied during absorption & re-emission. Except for the long-lived, error-corrected qubit, everything I described there is off-the-shelf commercial technology.
- fsh 29d agoPhotonic quantum interfaces typically operate at glacial speeds and with terrible fidelities. There is a lot more missing than good qubits.
- Dylan16807 29d agoIt's really really easy to eliminate noise in a digital system of transistors. For analog systems with subtle values, I would say we still can't arbitrarily scale that up with transistors. And quantum is like analog but far worse.