Book Image

Quantum Computing Algorithms

By : Barry Burd
5 (1)
Book Image

Quantum Computing Algorithms

5 (1)
By: Barry Burd

Overview of this book

Navigate the quantum computing spectrum with this book, bridging the gap between abstract, math-heavy texts and math-avoidant beginner guides. Unlike intermediate-level books that often leave gaps in comprehension, this all-encompassing guide offers the missing links you need to truly understand the subject. Balancing intuition and rigor, this book empowers you to become a master of quantum algorithms. No longer confined to canned examples, you'll acquire the skills necessary to craft your own quantum code. Quantum Computing Algorithms is organized into four sections to build your expertise progressively. The first section lays the foundation with essential quantum concepts, ensuring that you grasp qubits, their representation, and their transformations. Moving to quantum algorithms, the second section focuses on pivotal algorithms — specifically, quantum key distribution and teleportation. The third section demonstrates the transformative power of algorithms that outpace classical computation and makes way for the fourth section, helping you to expand your horizons by exploring alternative quantum computing models. By the end of this book, quantum algorithms will cease to be mystifying as you make this knowledge your asset and enter a new era of computation, where you have the power to shape the code of reality.
Table of Contents (19 chapters)
Free Chapter
Part 1 Nuts and Bolts
Part 2 Making Qubits Work for You
Part 3 Quantum Computing Algorithms
Part 4 Beyond Gate-Based Quantum Computing

Shor’s Algorithm

Much of the buzz around quantum computing comes from one simple fact: a quantum computer with several thousand qubits can solve a certain strategic problem that classical computers have no hope of solving.

In 1994 [1], Peter Shor unveiled an algorithm to crack today’s widely used encryption schemes. Decrypting a message might take trillions of years on a classical computer. But Shor’s algorithm, running on a sufficiently large quantum computer, can decrypt a message in less than a minute. It would be nice if most people welcomed a solution to this decryption problem. But, unfortunately, most people who want to break encryption schemes are malicious hackers.

Businesses and governments are taking this problem seriously. At this very moment (no matter when you’re reading this), people around the world are developing post-quantum cryptography schemes. These newly formulated schemes must be resistant to vulnerabilities arising from quantum...