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

Quantum teleportation

Quantum teleportation is a truly fascinating phenomenon in quantum computing. It is used to transfer a quantum state from one place to another place without the need to travel the space between the source and destination. Although this may sound magical, it happens with the help of entanglement.

To make things easier, let's look at an example. Suppose Alice wants to send some information using a quantum state to Bob. She could send it by copying the quantum state she has, but due to the no-cloning theorem she is unable to copy her state (the no-cloning theorem states that quantum states cannot be copied).

To begin the teleportation process, consider that Alice and Bob both share a Bell state, which is an example of an entangled state.

There are a total of four kinds of operations that Bob can perform on his qubit to find out the state that Alice has sent to him:

  • If measured value of a and b is 00, then Bob does nothing.
  • If measured value...