Calculate expectation value using Qiskit Simulator and Estimator
Feb 24, 2025 · Suppose the observable is XXI, and we get the result from qiskit simulator. Since qiskit uses little endian, should I reverse the order of my observable to calculate the expectation value?
Unable to import execute function from qiskit library
The issue was due to qiskit 1.0 removing execute from its library and I had to downgrade to version 0.46 version. I appreciate your input!
Getting counts from job.result() PrimitiveResult qiskit 2025
May 8, 2025 · I am trying to run throught qiskit-ibm-runtime, but the result I obtain is in PrimitiveResult and I absolutely clueless how to get the counts from here. The problem arises because of the …
programming - How does the c_if instruction work in Qiskit?
Sep 1, 2022 · The c_if instruction can be used to make the result of a measurement saved to a classical register adjust whether a gate is or is not performed. How does the c_if instruction obtain the …
PYTHON: Qiskit library import - Stack Overflow
Apr 10, 2024 · I'm trying to implement old code on qiskit whose imports start with from qiskit import QuantumRegister, ClassicalRegister, QuantumCircuit from qiskit import BasicAer, execute from …
Problem with importing some packages in qiskit
Oct 11, 2024 · I'm a beginner in Quantum computing and I aim to use Qiskit for quantum chemistry calculations (using VQE algorithm). I have a question about importing and would be so grateful for …
ModuleNotFoundError: No module named 'qiskit_algorithms'
Jul 22, 2024 · Hi, I have 2 questions : first, when you tried to migrate from 0.x to 1.x, did you create a brand new environment for the change or did you upgrade within the same env? Second, did you try …
Qiskit | ImportError: cannot import name 'Aer' from 'qiskit'
Apr 8, 2024 · While installing and tried to import Aer, I get an error. !pip install qiskit import numpy as np from qiskit import QuantumCircuit, Aer, transpile, assemble from ...
Using Qiskit AerSimulator with an NVIDIA GPU
Feb 21, 2025 · My GPU is an NVIDIA RTX 3060, running driver version 565.77 with CUDA 12.7 I am using nvcc, version 11.5 My Python venv contains qiskit-aer-gpu, cuQuantum and cuTensor among …
Qiskit: measure_all() or measure() - Quantum Computing Stack Exchange
Dec 13, 2022 · Qiskit has qiskit.circuit.QuantumCircuit.measure_all() and qiskit.circuit.QuantumCircuit.measure(). Why would you use one over another?