ITensor / ITensor/ITensorMPS.jl
Add `reverse(::MPS/MPO)`
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- Dominant language
- Julia
- Stars
- 85
- Forks
- 27
- Avg merge
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- Merged PRs (30d)
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Description
Define reverse(::MPS/MPO) by reversing the tensor order as well as the orthogonality limits.
julia> using ITensors
julia> s = siteinds("S=1/2", 3);
julia> psi = MPS(s);
julia> reverse(psi)
ERROR: MethodError: no method matching reverse(::MPS)
Closest candidates are:
reverse(::Tuple) at tuple.jl:466
reverse(::Pair{A, B}) where {A, B} at pair.jl:61
reverse(::Union{SubString{String}, String}) at strings/substring.jl:166
...
Stacktrace:
[1] top-level scope
@ REPL[8]:1
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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
Start by reproducing the Julia REPL example and inspect existing MPS and MPO methods related to tensor ordering and orthogonality limits. Done means reverse(psi) and the corresponding MPO call work without a MethodError, with both tensor order and orthogonality limits reversed.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- julia
- Domain
- backend
- Issue type
- Feature
- Difficulty
- 3/5
- Estimated time
- 1-2 days
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 35/100