# Import section from qiskit_aer import AerSimulator # For execution simulator = AerSimulator() compiled_circuit = transpile(qc, simulator) sim_result = simulator.run(compiled_circuit).result() counts = sim_result.get_counts() No need to downgrade to the older version. Use the above code for newer version of qiskit.

2022年12月20日 · $\begingroup$ This page states: "If you want to install our GPU supported simulators, you have to install this other package: pip install qiskit-aer-gpu This will overwrite your current qiskit-aer package installation giving you the same functionality found in the canonical qiskit-aer package, plus the ability to run the GPU supported simulators: statevector, density …

2024年4月8日 · Your code is correct but you are getting confused by the way qiskit orders the qubits in a state. According to qiskit documentation, qiskit uses an ordering convention called little-endian for both qubits and classical bits. Which means the qubit states will look something like this: |(state of qubit q1) (state of qubit q0) \rangle

2019年9月29日 · Qiskit uses little-endian for both classical bit ordering and qubit ordering. For classical bits: A 3-bit classical register creg with value abc has creg[0]=c, creg[1]=b, creg[2]=a. For qubits: The ordering is with respect to the tensor-product structure of the state space.

2022年4月11日 · $\begingroup$ I think you will then need to understand what the initialize function is doing , you can start by checking Initialize function, it mentions that the preparation is done on those 2 classes qiskit.extensions.StatePreparation , qiskit.extensions.Initialize $\endgroup$ –

2024年10月22日 · The way you can retrieve counts depends on the fact you used Qiskit primitives or AerSimulator from qiskit_aer: In the former case, hence if you called SamplerV2 or EstimatorV2, you can retrieve counts with cnts=results[0].data.c.get_counts() paying attention to the exact name of the classical register;

2022年2月10日 · from qiskit import QuantumCircuit qc = QuantumCircuit(1,2) qc.h(0) qc.measure(0,0) qc.h(0) qc.measure(0,1) Putting save_state after measurements seems to produce an output for given shots. So a naive adaption of the …

2024年3月14日 · The qiskit.Aer object is not available in Qiskit 1.0. Instead, use the same object from the qiskit_aer namespace, which is a drop-in replacement. So first let's try to install or upgrade Aer to make sure you're on the correct version. pip install --upgrade qiskit pip install --upgrade qiskit-aer This is probably the fix.

2023年5月4日 · I have a 2 qubit (+1 ancillary qubit) circuit in Qiskit which calculates the classical OR gate (q0 or q1) as follows: from qiskit import QuantumRegister, ClassicalRegister, QuantumCircuit, execute,...

2024年2月1日 · Qiskit Machine Learning %pip install qiskit[machine-learning] 3. Checking installation. If you want to know which version of qiskit package is installed, and which isn't. You can make use of following. import qiskit qiskit.__qiskit_version__ or you can check them in a table. import qiskit.tools.jupyter %qiskit_version_table