4 ms·
> The hardest part of implementing a quantum state vector simulation is understanding how the tensor product expands an n-qubit gate to apply to an m-qubit sys
by jxf 3y ago
> The hardest part of implementing a quantum state vector simulation is understanding how the tensor product expands an n-qubit gate to apply to an m-qubit system. (A third of the linked post is dedicated to it; appropriately.)
This feels like it could be the "git gets easier once you understand branches are homeomorphic endofunctors mapping submanifolds of a Hilbert space" of physics.
- consilient 3y agoIt's not, tensor products are of fundamental importance in QM. Understanding them is a hard requirement.
- gcr 3y agoQuantum Country does a good job of explaining the fundamentals like “what is a Hadamard gate”! Highly recommended: https://quantum.country/ https://quantum.country/