#quantum-hardware

Quantum computing isn't the next AI. Hardware, algorithms, investment and error correction are converging, and AI and quantum now feed each other.

Superconducting circuits, trapped ions, neutral atoms, photons, silicon spins and topological qubits compared: how each works, who builds it, and the trade-offs.

Follow one quantum circuit through the real machine: compiler, control electronics, cryostat, qubits, gates, readout, errors, shots and post-processing.

How many imperfect physical qubits become one reliable logical qubit: the surface code, code distance, the threshold, decoding, and why raw qubit counts mislead.

The inside of a quantum computer is about 270 times colder than outer space. Here's why heat destroys qubits, and why the machine looks like a giant chandelier.