TKET get_statevector method max number of qubits

[ACE07-Sev]

Greetings there,

Hope all are well. I have a quick question, which I'd appreciate if you could kindly answer. I am trying to use .get_statevector but I get this error

RuntimeError: Circuit to simulate has too many qubits

I had a look at the codebase and found the .cpp which implements this and raises it. It's CircSimulator.cpp iirc. So, my question is what the max number of qubits is, because I can't see where you have defined it. For reference, the circuit I was trying to run had 22 qubits.

[ACE07-Sev]

I noticed it's 11 max.

[cqc-alec]

Yes 11 is the maximum, defined here. I don't think there is a way to override this from Python.

[ACE07-Sev]

Could you make a PR to set it to at least 50 please?

[cqc-alec]

Could you make a PR to set it to at least 50 please?

That would be compuationally prohibitiive. This method is not optimized and not intended for heavy-duty simulation, but just for sanity-checking small circuits.

See https://tket.quantinuum.com/api-docs/extensions.html#statevector-simulators for some options for larger circuits.