KSL function not working as it should
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bug
duplicate
- Dominant language
- Python
- Stars
- 264
- Forks
- 73
- PR merge metrics
- No merged PRs in 30d
Description
Hi, I know this is probably not maintained anymore but in case some wants to use the TDVP algorithm please change the file ksl.py.
The line
y0 = y0.round(1e-14)
changes the rank during TDVP and this can causes serious problems.
Raffaele
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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
Open ksl.py and inspect the y0 = y0.round(1e-14) line within the TDVP path. Determine how that rounding changes the rank, then verify that the correction preserves the intended rank during TDVP execution.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- python
- Domain
- backend
- Issue type
- Bug
- Difficulty
- 2/5
- Estimated time
- 1-3 hours
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 35/100