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by thesz 1554 days ago
Here's explanation: https://en.wikipedia.org/wiki/Topological_quantum_computer#E...

It looks like "topological qubits" that are used in MSFT breakthrough is a sort of "surface-spread" qubits, because they are two dimensional structures. They are then "braided" instead of "entangled" to specify a problem to solve.

What is interesting here is that error correction for temperature fluctuations amounts to give these braids wider separation (in actual space). Which, on one hand, looks like simplification of the solution, but, on the other hand, still requires more space just like additional qubits in regular quantum computer.