Quantum Programming in QCL

Piotr Gawron, Jarosław Adam Miszczak, R. Winiarczyk +1 more

Article presents compiler which takes code written in procedural Quantum Computation Language as the input and produces sequential Quantum Markup Language code. The disadvantage of QML language is its low scalability. Usage of high-level language such as QCL solves this problem by introducing elements of procedural programming paradigm. It allows code reusability to solve similar problems of different size.

Yongshan Ding, Frederic T. Chong

Bernhard Ömer

Despite many common concepts with classical computer science, quantum computing is still widely considered as a special discipline within the broad field of theoretical physics. One reason for the slow adoption of QC by the computer science community is the confusing variety of formalisms (Dirac notation, matrices, gates, operators, etc.), none of which has any similarity with classical programming languages, as well as the rather “physical” terminology in most of the available literature. QCL (Quantum Computation Language) tries to fill this gap: QCL is a hight level, architecture independent programming language for quantum computers, with a syntax derived from classical procedural languages like C or Pascal. This allows for the complete implementation and simulation of quantum algorithms (including classical components) in one consistent formalism. Chapter 1 is an introduction into the basic concepts of quantum programming,

Jarosław Adam Miszczak

Josefína Čížková

Quantum programming languages Abstract We describe basic principles and properties of a quantum system and their use for Shor's algorithm. This algorithm promises to factorize integers in better time complexity on a quantum computer simulator. We also describe Shor's algorithm in the programming language Q#, which allows us to simulate a quantum algorithm on a classical computer. Finally, two other quantum programming languages are introduced, Qiskit and QCL, again illustrated by factorization.

Bettina Heim, Mathias Soeken, Sarah Marshall +5 more