mbrukman / openqasm

Gate and operation specification for quantum circuits

OpenQASM

Specs, examples and tools for the OpenQASM intermediate representation.

Current version

The latest version is: 2.0.

About this project

On this repository you'll find all the documentation related to OpenQASM and some useful OpenQASM examples.

Language specs

The language documentation is available here.

Examples

The examples can be found under the examples folder.

They are OpenQASM files, i.e.:

// Repetition code syndrome measurement
OPENQASM 2.0;
include "qelib1.inc";
qreg q[3];
qreg a[2];
creg c[3];
creg syn[2];
gate syndrome d1,d2,d3,a1,a2
{
  cx d1,a1; cx d2,a1;
  cx d2,a2; cx d3,a2;
}
x q[0]; // error
barrier q;
syndrome q[0],q[1],q[2],a[0],a[1];
measure a -> syn;
if(syn==1) x q[0];
if(syn==2) x q[2];
if(syn==3) x q[1];
measure q -> c;

Tests

The official OpenQASM conformance test suite is included in this repo.

Authors (alphabetical)

Lev S. Bishop, Antonio Córcoles, Andrew W. Cross, Jay M. Gambetta, Jesús Pérez and John A. Smolin.

Anyone who contributes to this project can include their name here.

Citation format

For research papers, we encourage authors to reference.

• Andrew W. Cross, Lev S. Bishop, John A. Smolin, Jay M. Gambetta "Open Quantum Assembly Language" [arXiv:1707.03429].

Other QISKit projects

• ibmqx backend information Information about the different IBM Q experience backends.
• ibmqx user guide The users guides for the IBM Q experience.
• Python API API Client to use IBM Q experience in Python.
• Python SDK Software development kit for working with quantum programs in Python.
• Tutorials Jupyter notebooks for using QISKit.

License

This project is licensed under the Apache License 2.0 - see the [LICENSE] file for details.

Acknowledgments

• Thanks to the awesome Quantum Experience Community who posted their thoughts and inputs to the OpenQASM.

Contributing

If you'd like to help please take a look to our contribution guidelines.