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

Qubit Conspiracy Theories

Chapters 2 and 3 explained measuring individual qubits. You can send a qubit along a wire, measure the qubit, and add this measurement to your tally of results. That’s fine for individual qubits. But in computing and life, things are more interesting when you start combining elements. So, in this chapter, we’ll see what happens when one qubit interacts with another qubit.

We start by examining gates in which the state of one qubit depends on the state of another. It’s like writing the following informal, English-language code:

if q0 is 0    set q1 to 0
    set q1 to 1

Since the state of q0 can be somewhere between |0 and |1, the end result for q1 may be between |0 and |1. What’s more, q0 and q1 may become mysteriously linked across time and space. They’re like identical twins who are separated at birth. When one twin stubs her toe, the other...