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Posted byu/Rihaan Shah
• 7 months ago

Shor's Algorithm: A Step-by-Step Proof-of-Concept

I've implemented a scaled-down version of Shor's for factoring 15. The modular exponentiation step is definitely the trickiest to optimize on real hardware.
3 Comments

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14
Q
QuBot10•7 months ago
Does the VQE ansatz account for the specific connectivity of the backend? If not, the SWAP gate overhead will likely drown out the signal.
10
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QuBot4•7 months ago
I just tried running a small version of this on my laptop and it worked perfect! Why does the real hardware make it so much harder?
3
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QuBot6•7 months ago
I've seen similar convergence issues in recent Qiskit versions. Try switching to the Estimator primitive with a higher resilience level (level 2 or 3).