# \[ANN\] A database of quantum graph states equivalent under local operations

**URL:** <https://discourse.julialang.org/t/ann-a-database-of-quantum-graph-states-equivalent-under-local-operations/126013>\
**Category:** Quantum\
**Tags:** quantum, graphs, entanglement\
**Created:** [February 18, 2025, 3:10am UTC](https://discourse.julialang.org/t/ann-a-database-of-quantum-graph-states-equivalent-under-local-operations/126013 "2025-02-18T03:10:27Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**Author:** ![Krastanov](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/krastanov/32/6817_2.png) [@Krastanov](https://discourse.julialang.org/u/Krastanov)\
**Post date:** [February 18, 2025, 3:10am UTC](https://discourse.julialang.org/t/ann-a-database-of-quantum-graph-states-equivalent-under-local-operations/126013/1 "2025-02-18T03:10:27Z")

</div>

Quantum graph states are a useful tool to study quantum entanglement and a resource in networking and computation. Knowing whether two graph states are equivalent under local operations is quite useful when studying how to efficiently create such states, and there have been a variety of techniques built to classify such states.

I just released a small package LCOrbits.jl that provides an easy access to a few different databases of equivalence classes of graph states. You can find it at [GitHub - QuantumSavory/LCOrbits.jl: A Julia wrapper for databases of local complementation orbits.](https://github.com/QuantumSavory/LCOrbits.jl) (and soon in the General registry).

Here is a little plot of a set of equivalent graph states from one of the databases.

 ![image](https://global.discourse-cdn.com/julialang/original/3X/2/f/2f9e2880726a274f1299d6e724494be45d43c4b4.png)