WavefunctionSimulator.expectation() returns numbers whose type is complex
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- Python
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Description
ie 0.5+0j
These numbers should always be real. This also afflicts QVMConnection.pauli_expectation (deprecated)
Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Start by locating WavefunctionSimulator.expectation() and the deprecated QVMConnection.pauli_expectation mentioned in the issue. Check how each constructs its return value, then verify that expectation results are real-valued rather than complex, including the 0.5+0j case.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- python
- Domain
- quantum-computing
- Issue type
- Bug
- Difficulty
- 2/5
- Estimated time
- 1-3 hours
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 48/100