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Qiskit / qiskit-tutorials

A collection of Jupyter notebooks showing how to use the Qiskit SDK
Apache License 2.0
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LinAlgError: Schur form not found. Possibly ill-conditioned. in one for the tutorial #1104

Closed KillerStrike17 closed 1 year ago

KillerStrike17 commented 3 years ago

Informations

What is the current behavior?

Gives and error for T1/T2 thermal relaxation

Steps to reproduce the problem

run this tutorial https://github.com/Qiskit/qiskit-tutorials/blob/master/tutorials/simulators/3_building_noise_models.ipynb in numpy version 1.19.3 and Qiskit terra version 0.16.1

What is the expected behavior?

The tutorial should run.. but gives a LinAlgError: Schur form not found. Possibly ill-conditioned. error

Suggested solutions

divshacker commented 3 years ago

Hey it is running without any error in IBM Quantum Experience. Check this https://quantum-computing.ibm.com/jupyter/tutorial/simulators/3_building_noise_models.ipynb There might be problem locally in your system @KillerStrike17

Eric-Arellano commented 1 year ago

Closing as likely fixed, based on @divshacker, and either way probably stale. Please feel free to reopen in https://github.com/Qiskit/qiskit-aer if still relevant.