Projects

You can see all of the tagged issues on GitHub here!

Mitiq	PennyLane	Strawberry Fields	The Walrus
toqito	SciRate	QuNetSim	Interlin-q
QRAND	Qrack	QuTiP	Pulser
QCOR	XACC	QOSF Monthly Challenges	Yao
Quantify	QQCS	Q#

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Mitiq

Mitiq is a Python toolkit for implementing error mitigation techniques on quantum computers.

Current quantum computers are noisy due to interactions with the environment, imperfect gate applications, state preparation and measurement errors, etc. Error mitigation seeks to reduce these effects at the software level by compiling quantum programs in clever ways. You can watch some videos about Mitiq on the Unitary Fund YouTube channel.

General issues we are looking for help with during unitaryHACK

Bounties

$100 each

• Add tutorial example where mitiq makes a variational problem trainable

$75 each

• Add type check to CI

$25 each

• Add an XACC executor example and item to software list
• Warn users when their programs are too short
  • Yash-10 HACKED Warning for short programs [unitaryHACK]
• Improve braket support
  • maxtremblay HACKED [UnitaryHACK] Improve conversion from braket to cirq

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PennyLane

PennyLane is a cross-platform Python library for differentiable programming of quantum computers.

Train a quantum computer the same way as a neural network.

Bounties

$100 each

• Create a quantum simulator in PyTorch

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Strawberry Fields

Strawberry Fields is a full-stack Python library for designing, simulating, and optimizing continuous-variable quantum optical circuits.

Bounties

$100 each

• Add a hybrid Gaussian/non-Gaussian compiler that merges Gaussian gates
  • federico0112 HACKED [unitaryHACK] Strawberry Fields: Gaussian Merge

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The Walrus

A library for the fast calculation of hafnians, Hermite polynomials, and Gaussian boson sampling.

Bounties

$50 each

• Improve the calculation of multidimensional hermite polynomials

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toqito

The toqito package is an open source Python library for studying various objects in quantum information, namely, states, channels, and measurements.

Specifically, toqito focuses on providing numerical tools to study problems pertaining to entanglement theory, nonlocal games, matrix analysis, and other aspects of quantum information that are often associated with computer science.

A complete list of issues can be found here

Bounties

$85 each

• Implement feature for calculating the NPA hierarchy
  • georgios-ts HACKED NPA hierarchy [unitaryHACK]
• Implement feature for converting a binary constraint game to a nonlocal game
  • theRoughCode HACKED Implement construction of nonlocal game from binary constraint system game [unitaryHACK]
• Implement feature for determining whether an operator is block-positive

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SciRate

SciRate is an open source rating and commenting system for arXiv preprints. Papers are upvoted and discussed by the community, and we sometimes play host to more in depth peer review.

Check out some issues we are looking for help with “help wanted”.

Bounties

$125 each

• Make a twitter/discord bot that posts the top papers each day
  • infiniteregrets HACKED scirate-bots
• Build and deploy with nix

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QuNetSim

QuNetSim is a quantum network simulation framework. With it, one can develop protocols for quantum networks such as QKD, quantum teleportation, anonymous transmission, and many more over custom network topologies. You can watch the Quantum Software Talk on QuNetSim on YouTube.

The complete list of issues for QuNetSim are here.

Bounties

$60 each

• Develop a user interface for QuNetSim
  • andre-a-alves and MrRobot2211 HACKED Generate simple topologies [unitaryHACK]
• Develop QKD protocols
  • pirtamsinha2304, sashofthedark, and fvista HACKED this bounty with many PRs, see the results page for them all
• Develop a more complex templating script
  • andre-a-alves HACKED Templater upgrade [unitaryHACK]
• Develop an example of a second generation quantum repeater

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Interlin-q

Interlin-q is a simulation platform for simulating distributed quantum algorithms. The purpose of Interlin-q is to be able to enter a monolithic quantum circuit and based on the distributed architecture, automatically map the circuit and then simulate the control process to run the algorithm.

Bounties

$250

• Integrate pyQuirk with Interlin-q

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QRAND

QRAND is a smart quantum random number generator for arbitrary probability distributions, which operates by providing a multiplatform NumPy adapter interface (e.g. qiskit, cirq, qsharp). To boost the randomness production speed it implements an efficient randomness retrieval strategy based on caching and multithreading.

On top of that, it also allows the design and use of different platform-agnostic quantum randomness generation protocols; as well as performing validation on the results, according to a variety of NIST standards.

• Unitary Hack sponsored issues
• Complete list of issues

Bounties

$100 each

• Cirq support
• Q# support
  • Avhijit-codeboy HACKED [unitaryHACK] (#2) Qsharp support

$50 each

• Entropy validation suite

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Qrack

Qrack is a GPU-accelerated HPC quantum computer simulator framework. The core library is dependency-free C++11, with optional OpenCL and Boost headers. Hardware supports spans from desktop, to mobile, to distributed clusters, and OS support includes Linux, Windows, Mac, Android, and iOS. Qrack aims to optimize the performance of noiseless pure state simulations. To this end, it contains many “layers” of functionality and novel optimization techniques. You can watch the Quantum Software Talk on Qrack on YouTube.

• A complete list of issues can be found here

Bounties

$125

• Feature: Cirq plugin

$125

• Feature: Optional CUDA Support

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QuTiP

QuTiP is an open-source Python library for simulating the dynamics of closed and open quantum systems, including quantum information processing and quantum control. You can watch the Quantum Software Talk on QuTiP on YouTube.

Bounties

$25

• Fix error raised by ffmpeg command from User Guide
  • Yash-10 HACKED Fix ffmpeg error [unitaryHACK]
• Bloch sphere requires matplotlib >= 3.3
  • Yash-10 HACKED Version checks for matplotlib [unitaryHACK]
• Address deprecation warnings in Matplotlib 3.4
  • Yash-10 HACKED Version checks for matplotlib [unitaryHACK]

$75

• Address “malloc: Incorrect checksum” error in qutip.testing qt.run()

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Pulser

Pulser is a Python library for programming neutral-atom quantum devices at the pulse level. The low-level nature of Pulser makes it a versatile framework for quantum control both in the digital and analog settings. The library also contains simulation routines for studying and exploring the outcome of pulse sequences for small systems.

We recommend tackling these issues. If you want to start with a simple contribution, look also for a “good first issue”.

Bounties

$100 each

• Add Support for Simulation in XY Mode
• Add type hints, and mypy CI tests
  • LaurentAjdnik and TripleR47 HACKED this bounty with many PRs, see the results page for them all

$50

• Option to display pulses’ areas and phases on a plot
  • Yash-10 HACKED Add phase and area text to pulse plot [unitaryHACK]

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QCOR

QCOR is a quantum-retargetable compiler platform providing language extensions for both C++ and Python that allows programmers to express quantum code as stand-alone kernel functions. You can watch the Quantum Software Talk on QCOR and XACC on YouTube.

Bounties

$25

• API for command-line argument parsing
  • amirebrahimi HACKED Add argument parsing [unitaryHACK]
• Improved CMake Target Exporting and Downstream Quantum-Classical add_executable()

$50

• Quantum JIT Cache Manager

$150

• Python Wheels or Conda Binary

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XACC

XACC is a service-oriented, system-level software infrastructure in C++ promoting an extensible API for the typical quantum-classical programming, compilation, and execution workflow. You can watch the Quantum Software Talk on QCOR and XAAC on YouTube.

Bounties

$50

• xacc::getAccelerator(“ibm”) automatic backend selection based on jobs in the queue
  • flatslm HACKED Ibmq accelerator select lowest queue backend: resolve #441 [unitaryHACK]

$100

• Flexible Instruction Simulation
• Implement 3-qubit decomposition

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Yao

Yao is an open source framework that aims to empower quantum information research with software tools in the Julia programming language.

Bounties

$50

• integration with PastaQ
  • VarLad HACKED Create YaoTreeToPastaQList.jl

$100

• integrate YaoBlocks with IBMQClient and OpenQASM
  • Sov-trotter HACKED by creating QuantumBFS/YaoBlocksQobj.jl and QuantumBFS/YaoBlocksQASM.jl
• webpage (tutorial/documentation/etc.) pipeline improvements
  • VarLad HACKED Fixed the tutorials

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QOSF Monthly Challenges

The Quantum Open Source Foundation (QOSF) Monthly Challenges aim to help participants hone their general quantum computing skills. These are open to everyone and welcome solo or team contributions. Solutions are peer-reviewed.

Bounties

$25

• Design a challenge!
  • MaldoAlberto HACKED add Challenge 7 [unitaryHACK]
• Design a challenge!

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QQCS

QQCS is a simple linear notation for the simulation of quantum circuits.

A list of issues can be found here

Bounties

$125 Each

• Design new syntax to declare circuit lines to be divided into separate registers.
• Add an adjoint operator (‘) the gate suffix syntax and to the interpreter.

$25

• Add a command line switch to display sparse matrices with periods (.) replacing zero elements (0).
  • WingCode HACKED Added command line switch for better readability in sparse matrix [unitaryHACK]

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Quantify

Quantify is a python based data acquisition platform focused on Quantum Computing and solid-state physics experiments. It is built on top of QCoDeS and is a spiritual successor of PycQED. Quantify currently consists of quantify-core and quantify-scheduler.

A list of other issues can be found here:

• Quantify-core issues
• Quantify-scheduler issues

Bounties

$25

• Create an interactive data browser
• Save JSON schedule to harddisk

$50

• Replace PyQT5 for realtime visualization

$75

• Support loops and classical logic in quantify-scheduler
• Parser and generator for Qiskit, Cirq

Q#

We are working on adding support for compiling Q# to QIR and executing it. QIR is a convention for how to represent quantum programs in LLVM. We aim to ultimately move the Q# compiler to be fully LLVM-based.

While the support and integration is not yet complete, we have set up an example for how to compile a Q# project to QIR and execute it on our full state simulator for early adventurers who are excited to give it a try!

For Unitary Hack, we have defined two tasks in particular to explore QIR:

Bounties

$25 each

• Create an imaginative Q# program that is significantly different than any of our samples, compile it to QIR, and execute it on our full state simulator. Create a PR adding the program to the example and post or attach the generated QIR to one of these GitHub issues: example 1, example 2, example 3.

$50 each

• Find a Q# program that doesn’t compile correctly into QIR or unexpectedly fails when executing the QIR on the full state simulator due to an issue with the generated QIR that hasn’t been filed yet, and file the issue. The following GitHub issues contain more details: issue 1, issue 2, issue 3