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Allow control-on-off for Gate.controlled() #853

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notmgsk opened this issue Mar 20, 2019 · 0 comments
Open

Allow control-on-off for Gate.controlled() #853

notmgsk opened this issue Mar 20, 2019 · 0 comments
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notmgsk commented Mar 20, 2019

Currently Gate.controlled(0) will do something if the qubit 0 is in the 1-state. There is a common use-case where the opposite is desirable; i.e. do something if the control qubit is in the 0-state. This is equivalent to straddling Gate.controlled() with not-gates on the appropriate qubit.
@notmgsk notmgsk self-assigned this Mar 20, 2019
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