🌐 Qiskit

The name Qiskit is a general term referring to a collection of software from IBM Quantum for executing programs on quantum computers. Most notably among these software tools is the open-source Qiskit SDK.

Qiskit SDK is an open-source Software Development Kit for building, optimizing, and running quantum circuits. It includes tools for circuit composition, visualization, and execution, as well as support for quantum operators and primitives like Sampler and Estimator. The transpiler enables circuit optimization, and the quantum information toolbox provides advanced operator support. Qiskit’s lean libraries and streamlined workflow help develop utility-scale, domain-specific solutions efficiently.

GitHub Repository: https://github.com/Qiskit/qiskit/
Documentation: https://quantum.cloud.ibm.com/docs/
PyPI: https://pypi.org/project/qiskit/

If you're new to contributing, please see our contribution guidelines.

In addition to the SDK, other Qiskit tools participated in unitaryHACK are:

• Aer: A high performance simulator for quantum circuits that includes noise models.
• Qiskit AI Transpiler: A package to run AI and heuristic Qiskit transpiler passes on local and cloud environments.
• rustworkx: A high performance Python graph library implemented in Rust. Used internally in several quantum computing libraries such as Qiskit and Pennylane.
• Qiskit documentation: The documentation content home for quantum.cloud.ibm.com and docs.quantum.ibm.com (excluding API references, they are in the code itself as docstrings).

For support from the community, please request access to the Qiskit Slack workspace. The channels #qiskit-dev and #qiskit-pr-help are a good place for questions on the development and the PRing process respectively. Do not DM individual IBMers for support.

Closed bounties:

• $100 | Add user config option to limit allowed QPY versions
  closed by: Erik-Chagas, Tanuj-rai
• $75 | Remaining circuit library deprecations
  closed by: AsadullahGalib007
• $100 | DAGCircuit is missing adequate documentation
  closed by: AbdullahKazi500
• $100 | Add details of prob_meas0_prep1, prob_meas1_prep0, readout_length
  closed by: AsadullahGalib007
• $300 | Improve the Collection passes
  closed by: ljcamargo