Episode 62 of The Quantum Computing Podcast with Fexingo dives into the memory bottleneck facing quantum computers. Lucas and Luna explore why today's classical RAM can't keep up with qubit error correction, and how a startup called Qunnect is building a quantum memory system using diamond defects. They break down the specific challenge: logical qubits require thousands of physical qubits, and each error-correction cycle needs to store and retrieve intermediate results faster than decoherence destroys them. The episode walks through the concept of a quantum cache, the physics of nitrogen-vacancy centers in diamond, and the trade-offs between optical and microwave readout. A concrete look at one of quantum computing's most overlooked hardware problems.

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