Quantum Scaling SOLVED? 30-Year-Old Tech Might Be the Key
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Quantum computers don’t scale like normal computers — and the bottleneck isn’t “just add more qubits.” The real scaling wall is the classical infrastructure: heat budget, wiring fanout, and the room‑temperature electronics needed to control and read out qubits inside an ultra-cold cryostat. Superconducting qubits only behave when they’re unbelievably cold, deep inside a dilution refrigerator. But most of the “computer stuff” that drives them (microwave control, readout chains, timing, feedback) sits outside at room temperature. Every extra qubit usually means more cables — and each cable is a heat leak, a space constraint, and a noise pathway. Then error correction multiplies the problem: useful quantum computing requires repeated measurement and fast “measure → decide → correct” loops, which ramps up control and readout demands even more. In this video, we myth-bust the hype and focus on what’s limiting superconducting quantum computers right now — and why a comeback idea from decades ago (superconducting digital logic / cryogenic control electronics placed closer to the qubits) might reduce the wiring and heat load that make scaling so painful. Sources https://www.newscientist.com/article/2516804-could-a-niche-80s-technology-be-the-key-to-better-quantum-computers/ #QuantumComputing #QuantumHardware #SuperconductingQubits #Cryogenics #ErrorCorrection #Engineering #PhysicsExplained Complex breakthroughs. Simple explanations. Every day. submitted by /u/KreaVas [link] [comments]