When executing pauli measurements, Graphix removes isolated nodes from a pattern. However, the current version failed to remove them.
To Reproduce
Run 3-qubit QFT with perform_pauli_measurements() and show a graph with networkx.draw(). Then, one can see four isolated nodes, one of them is an output node.
Expected behavior
Isolated nodes, excluding outputs, should be removed from a pattern.
Environment (please complete the following information):
Describe the bug
When executing pauli measurements, Graphix removes isolated nodes from a pattern. However, the current version failed to remove them.
To Reproduce
Run 3-qubit QFT with
perform_pauli_measurements()and show a graph withnetworkx.draw(). Then, one can see four isolated nodes, one of them is an output node.Expected behavior
Isolated nodes, excluding outputs, should be removed from a pattern.
Environment (please complete the following information):
Additional context
na