I'm just getting started with OpenQASM, but I'm feeling a bit confused. Is there a way to run the .qasm file I've written in Qiskit (i.e. in Python), or is OpenQasm only meant to be used within the IBM Quantum experience?
$\begingroup$
$\endgroup$
Add a comment
|
1 Answer
$\begingroup$
$\endgroup$
2
You can use qasm files to create a quantum circuit, two ways : via the methods from_qasm_str or from_qasm_file on a QuantumCircuit. See the documentation about this. For example :
test = ''' OPENQASM 2.0;
include "qelib1.inc";
qreg q[2];
creg c[2];
h q[0];
cx q[0],q[1];
'''
from qiskit import QuantumCircuit
qc = QuantumCircuit.from_qasm_str(test)
This will create a QuantumCircuit from the str test. The same syntax work with the other method, just replace test with the path to the qasm file.
Hope this helps! :)
-
$\begingroup$ Thank you so much! That appears to have worked. I do have another question though. How would I go about getting the state from this QuantumCircuit object? I've tried
save_state()but that throws an error. Do I have to then run this on a simulator (such as aer) to be able to retrieve the state? Maybe this ought to be a separate post $\endgroup$– stare100Commented Aug 18, 2021 at 1:49 -