Microsoft are to release their quantum computer simulator, LIQUi|>, to the public. Though it’s only 30 qubits, it’ll take up 32GB of RAM to run it, with memory requirements doubling for each additional qubit. The software, which Microsoft claim to have been using in-house for some time, is called Language-Integrated Quantum Operations or LIQUi|>, with the |> intended to represent a ket and (symbolically) the letter D.

See http://fortune.com/2015/11/13/microsoft-quantum-computing-simulator/ for more of this story (that’s a really crappy website, with the article – aimed at people with no knowledge of physics, QM, or computers – buried beneath a ridiculous amount of advertising.)

The code itself is available on github, though only Windows binaries (no source) are available (with virtual machines explicitly supported.)

Wocky said:

Microsoft are to release their quantum computer simulator, LIQUi|>, to the public. Though it’s only 30 qubits, it’ll take up 32GB of RAM to run it, with memory requirements doubling for each additional qubit. The software, which Microsoft claim to have been using in-house for some time, is called Language-Integrated Quantum Operations or LIQUi|>, with the |> intended to represent a ket and (symbolically) the letter D.

See http://fortune.com/2015/11/13/microsoft-quantum-computing-simulator/ for more of this story (that’s a really crappy website, with the article – aimed at people with no knowledge of physics, QM, or computers – buried beneath a ridiculous amount of advertising.)

The code itself is available on github, though only Windows binaries (no source) are available (with virtual machines explicitly supported.)

What does it do? (Asking so I don’t have to ready ridiculous amount of advertising).

mollwollfumble said:

What does it do? (Asking so I don’t have to ready ridiculous amount of advertising).

Have look at the Microsoft site quoted above for lots of details, and the github page for a readme. To quite the latter,
github said:

LIQUi|> includes three simulators:

* A full state vector simulator that tracks the detailed evolution of the quantum state * A stabilizer simulator based on CHP (Aaronson and Gottesman, http://arXiv.org/abs/quant-ph/0406196) * A highly-optimized full state vector simulator for fermionic Hamiltonians

…

What Can I Do With It?

You can use LIQUi|> to define quantum circuits, render them into a variety of graphical formats, and execute them using an appropriate simulator.

Some of the specific algorithms you can simulate with LIQUi|> are:

* Simple quantum teleportation * Shor’s factoring algorithm * Quantum chemistry: computing the ground state energy of a molecule * Quantum error correction * Quantum associative memory (Ventura and Martinez, http://arxiv.org/abs/quant-ph/9807053) * Quantum linear algebra (Harrow, Hassidim, and Lloyd, http://arxiv.org/abs/0811.3171)

All of these algorithms, and many more, are included as samples with LIQUi|>.

For information, and as a convenient place to put this, there’s a list of quantum computer simulators at http://www.quantiki.org/wiki/list-qc-simulators