Duplicate elements in definition of subpsace in "Minimum eigenvalue estimation of a spin (qubit) Hamiltonian" tutorial

[nonhermitian]

Environment

• qiskit-addon-sqd version: latest
• Python version:
• Operating system:

What is happening and why is it wrong?

The tutorial "Minimum eigenvalue estimation of a spin (qubit) Hamiltonian" generates a bit-string matrix that defines the subpsace of the Hamiltonian. However, there are 242 duplicate entries in this bit-string matrix which seems to be a bug.

How can we reproduce the issue?

Count the number of unique bit-strings

Traceback

No response

Any suggestions?

No response