qciconnect-alf 0.2.0

Application library framework of DLR QCI Connect quantum computing platform.

QCI Connect Application Library Framework (ALF)

This is a python framework for the application libraries of the QCI Connect platform of the German Aerospace Center (DLR).

Basic Idea

Algorithms are the central objects of the ALF. They consume a ProblemInput and return a Result.

Internally, they describe quantum programs using Circuits. Circuit builder objects aid in the construction of Circuits.

Algorithms can compute bitstrings on Circuits by submitting them to a Sampler, which returns a Measurement object containing a histogram of the measured bitstrings.

Algorithms can also compute ExpectationValues of Observables for a given Circuit in terms of their MeasurementBasis. They can create an EstimationJob that wraps the necessary information and send it to an Estimator. Finally, the estimator internally calls its Sampler and returns an Estimations object containing the estimated ExpectationValues.

Installation Instructions

To install the requirements for this package, we recommend using ultraviolet (installation guide). All dependencies can be installed to a virtual environment via

git submodule update --init 
uv sync

Before using ALF, we need to activate the virtual environment. Here's how its done on different operating systems. Note the different activation instructions for other shells.

Linux and MacOs

Open a bash shell and run

source .venv/bin/activate

Windows

Open the powershell and run

.venv/Scripts/activate

Check if the installation was successful

You can quickly test if the installation succeeded by running the following lines in a python interpreter after activating the virtual environment

   from qciconnect.alf.base import PauliString
   pauli = PauliString({2: "X", 5:"Y"})
   print(pauli) # should return X2Y5