FewBodyDB.jl

FewBodyDB is a database of reference results for few-body systems. It is intended for validating numerical solvers in JuliaFewBody projects.

Usage

db returns a typed DatabaseEntry, including the result's provenance and state metadata.

julia> using FewBodyDB
julia> entry = db(:Bubin2005Jan, Symbol("HD⁺"), :energy, (J = 0, v = 0))DatabaseEntry{@NamedTuple{J::Int64, v::Int64}, Float64}(:Bubin2005Jan, :HD⁺, :energy, (J = 0, v = 0), -0.5978979685)
julia> entry.value-0.5978979685
julia> entry.state(J = 0, v = 0)
julia> println(bib(entry))@article{Bubin2005Jan,
  title = {Charge asymmetry in HD+},
  volume = {122},
  ISSN = {1089-7690},
  url = {http://dx.doi.org/10.1063/1.1850905},
  DOI = {10.1063/1.1850905},
  number = {4},
  journal = {The Journal of Chemical Physics},
  publisher = {AIP Publishing},
  author = {Bubin,  Sergiy and Bednarz,  Eugeniusz and Adamowicz,  Ludwik},
  year = {2005},
  month = jan 
}

A slash-separated key returned by dbkeys can also be used directly:

julia> using FewBodyDB
julia> db("Bubin2005Jan/HD⁺/energy/(J = 0, v = 0)").value-0.5978979685

The old @get and @bib macros remain available as compatibility wrappers, but function calls are preferred for new code.

Data

Bibliography

@article{Bubin2005Jan,
  title = {Charge asymmetry in HD+},
  volume = {122},
  ISSN = {1089-7690},
  url = {http://dx.doi.org/10.1063/1.1850905},
  DOI = {10.1063/1.1850905},
  number = {4},
  journal = {The Journal of Chemical Physics},
  publisher = {AIP Publishing},
  author = {Bubin,  Sergiy and Bednarz,  Eugeniusz and Adamowicz,  Ludwik},
  year = {2005},
  month = jan
}

@article{Karr2006Apr,
  title = {High accuracy results for the energy levels of the molecular ions H+2,  D+2and HD+,  up toJ= 2},
  volume = {39},
  ISSN = {1361-6455},
  url = {http://dx.doi.org/10.1088/0953-4075/39/8/024},
  DOI = {10.1088/0953-4075/39/8/024},
  number = {8},
  journal = {Journal of Physics B: Atomic,  Molecular and Optical Physics},
  publisher = {IOP Publishing},
  author = {Karr,  J Ph and Hilico,  L},
  year = {2006},
  month = apr,
  pages = {2095–2105}
}

@book{Suzuki2003Jul,
  title={Stochastic variational approach to quantum-mechanical few-body problems},
  volume = {54},
  ISSN = {0940-7677},
  url = {https://doi.org/10.1007/3-540-49541-X},
  DOI = {10.1007/3-540-49541-X},
  author={Suzuki, Yasuyuki and Varga, K{'a}lm{'a}n},
  year={2002},
  month = july,
  publisher={Springer},
}

Citation

Please use CITATION.bib if you need to cite this package.

println(read("../../CITATION.bib", String))

@misc{FewBodyDB.jl,
	author  = {Shuhei Ohno, Martin Mikkelsen},
	title   = {FewBodyDB.jl},
	url     = {https://github.com/JuliaFewBody/FewBodyDB.jl},
	version = {v0.0.3},
	year    = {2025},
	month   = {9}
}

API reference

• FewBodyDB.DatabaseEntry
• Base.put!
• FewBodyDB.bib
• FewBodyDB.db
• FewBodyDB.dbkeys

DatabaseEntry(reference, system, observable, state, value)

put!(reference, system, observable, state, value) -> DatabaseEntry

bib(key::Union{Symbol,AbstractString}) -> String
bib(entry::DatabaseEntry) -> String

db(key::Union{Symbol,AbstractString}) -> DatabaseEntry
db(reference, system, observable, state) -> DatabaseEntry

entry = db(:Bubin2005Jan, Symbol("HD⁺"), :energy, (J = 0, v = 0))
entry.value == -0.5978979685

db("Bubin2005Jan/HD⁺/energy/(J = 0, v = 0)").value

dbkeys() -> Vector{String}