Add general SaveState instruction #1164
Merged
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
Summary
Adds
SaveState
instruction, withsave_state
circuit method.This saves the state of the simulator in the appropriate format for the simulation method (ie. statevector, density_matrix, unitary, stabilizer).
Details and comments
Note that for density matrix simulation this is treated as a single data type like for the other simulation methods, rather than average as with the regular
save_density_matrix
instruction. Hence it is always the state of the simulator at the final shot (unless pershot=True and it is a list of states for each shot).