QuantumX

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This is C implementation of the CSD algorithm. Coded by Zengrong Zhou (zrzhou).

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This program decomposed the unitary matrix stored in a row-major way in matclx into control-u gates and single qubit gates.

Basic Usage

First, in order to get the executable file, please make the source code, you can get a program named QuantumX.

Then you can put the unitary matrix into matclx.txt, the format of which is:

Dimension-Of-Unitary-Matrix
Real-Part-Of-1st-Matrix-Element Imaginary-Part-Of-1st-Matrix-Element
. . .
Real-Part-Of-Last-Matrix-Element Imaginary-Part-Of-Last-Matrix-Element

For instance, a 2x2 identity matrix can be shown as:

2
1.0 0.0
0.0 0.0
0.0 0.0
1.0 0.0

As the last step, run QuantumX, the decomposed quantum gates are given in GATES.txt :)

Currently Working On

By inputing an arbitrary unitary matrix, our program is supposed to output a quantum program understandable by IBM Quantum Experience (Quantum Score Source Code).

Notice

QuantumX should be working fine on Linux.

If the program cannot be made correctly, you should build a lapack library in your computer.

You can download the source code of lapack library from "http://www.netlib.org/lapack/".

You must build those three files "liblapack.a liblapacke.a librefblas.a", and replace the file in the directory of QuantumX.

References

1. Quantum Circuits for General Multiqubit Gates (get the algorithm) DOI: 10.1103/PhysRevLett.93.130502

2. Qcompiler: Quantum compilation with the CSD method (get the test data-matclx) DOI: 10.1016/j.cpc.2012.10.019