qiskit - Fake vs real IBM backends - Quantum Computing Stack Exchange
Mar 25, 2025 · I'm trying to run a relatively simple 'quantum adder' on fake and real backends. The fake backends are giving the correct answer, the real backends are not. I've verified the errors are similar …
terminology and notation - Quantum Computing Stack Exchange
Feb 11, 2020 · What is a "shot" in relation to quantum computing? I heard it is repeating time, but I don't understand it. Additionally, why is the default number of shots 1,024 in the IBM Q Experience? One …
How to execute the knapsack problem in cloud service of QC of IBM?
May 8, 2025 · Someone could give a recomendation on how to execute the code show below - knapsack problem using QAOA algorithm, code avaliable on Qiskit documentation - in a quantum …
quantum advantage - Why is there a discrepancy in error correction ...
Jan 9, 2025 · BTW, until recently IBM used fixed-frequency qubits and simple capacitors as couplers, while Google fabricated flux-tunable qubits and couplers already in their 2019 supremacy …
Quantum Computing - via Qiskit - error 403
Apr 18, 2024 · A year ago, I registered in the IBM Quantum Computing app, which provides access to quantum computers and to simulators. I got an API key, and was able to run some programs. …
How can I get real hardware resources for IBM Quantum locally?
Mar 29, 2023 · I want to know how to connect to ibm's real quantum hardware locally besides running the code in jupyter in ibm cloud under the premise of turning on the system proxy？
How can I save IBM Quantum API token to local environment?
Jan 11, 2022 · 2 I have an IBM Quantum account. How can I save the IBM Quantum API token to local environment so that I can access services including real quantum systems, simulators and Qiskit …
How can I get IBM's API token? - Quantum Computing Stack Exchange
Feb 21, 2022 · I need an API token to use IBM's real hardware (greater than 5 qubits) in Qiskit, where can I find the price?
programming - Qiskit IBM Runtime: least_busy () raises ...
Sep 18, 2025 · I’m trying to connect to IBM Quantum backends using Qiskit Runtime Service. Here’s my code (based on IBM Cloud setup guide): from qiskit_ibm_runtime import QiskitRuntimeService token …
How to measure a quantum circuit's execution time on a real IBM device?
Dec 1, 2020 · I am executing a quantum circuit on an IBM quantum device and I need to start a timer as soon as the job in the queue starts running. I have already used: result = job.result () execution_time …