Book Image

Quantum Computing with Silq Programming

By : Srinjoy Ganguly, Thomas Cambier
Book Image

Quantum Computing with Silq Programming

By: Srinjoy Ganguly, Thomas Cambier

Overview of this book

Quantum computing is a growing field, with many research projects focusing on programming quantum computers in the most efficient way possible. One of the biggest challenges faced with existing languages is that they work on low-level circuit model details and are not able to represent quantum programs accurately. Developed by researchers at ETH Zurich after analyzing languages including Q# and Qiskit, Silq is a high-level programming language that can be viewed as the C++ of quantum computers! Quantum Computing with Silq Programming helps you explore Silq and its intuitive and simple syntax to enable you to describe complex tasks with less code. This book will help you get to grips with the constructs of the Silq and show you how to write quantum programs with it. You’ll learn how to use Silq to program quantum algorithms to solve existing and complex tasks. Using quantum algorithms, you’ll also gain practical experience in useful applications such as quantum error correction, cryptography, and quantum machine learning. Finally, you’ll discover how to optimize the programming of quantum computers with the simple Silq. By the end of this Silq book, you’ll have mastered the features of Silq and be able to build efficient quantum applications independently.
Table of Contents (19 chapters)
Section 1: Essential Background and Introduction to Quantum Computing
Section 2: Challenges in Quantum Programming and Silq Programming
Section 3: Quantum Algorithms Using Silq Programming
Section 4: Applications of Quantum Computing

Introducing quantum measurements

In quantum computing, whenever we start talking about making measurements, we are referring to the fact that the quantum system is interacting with the environment. Whenever qubits interact with an external environment, the phenomenon of decoherence takes place and they no longer maintain their quantum properties, which severely alters their quantum state. This configuration is what we describe as an open system, where the qubits interact with the environment and the time evolution is not inflexible.

The process of measurement can only take place in an open system because the measurement device has to interact with the quantum system and states to extract information from it. After the measurement process, the whole quantum system is severely altered and disturbed.

During the measurement process, a phenomenon known as the collapse of the wave function occurs. Prior to measurement of the quantum system, the quantum system lives in the superposition...