IBM Qiskit

Run Two-Qubit Circuits you own this product

This project is part of the liveProject series Learn Quantum Computing with IBM Qiskit
basic Python • basic math • basics of Jupyter Notebook
skills learned
programming circuits involving 2 qubits • quantum gates • Bell states • IBM Quantum Composer
Tony Holdroyd
1 week · 2-4 hours per week · BEGINNER

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Look inside

Get tangled up in quantum computing! Action at a Distance Corporation, a consortium of venture capitalists, believes the time to invest in quantum computing startups is now. As the consortium’s resident researcher, your task is to understand the power of quantum computing.

You’ll learn to recognize normalized quantum states of two qubits, a key skill in implementing quantum algorithms. You’ll get familiar with the Controlled Not (CNOT) gate, vital to the construction of important, entangled states, and you’ll observe what Einstein called “spooky action at a distance” as you program the (famous!) entangled Bell states. Using the IBM Quantum Composer, you’ll visualize and animate quantum circuits, gaining insight into handling gates and their outcomes.

This project is designed for learning purposes and is not a complete, production-ready application or solution.

book resources

When you start your liveProject, you get full access to the following books for 90 days.

project author

Tony Holdroyd

Tony Holdroyd has a master’s degree in computer science with postgraduate work in mathematics and shares his expertise in those subjects as a retired senior lecturer. Before retiring, he specialized in researching and teaching programming languages and led a number of teams that won significant contracts for degree-level courses from several educational institutions in the UK. Since retiring, he’s worked as a technical reviewer and beta-tester for a variety of major U.S. publishers, as well as being a published author in the machine learning space.


This liveProject is for anyone with basic algebra and geometry skills, basic complex number skills, basic Python programming skills, and a strong interest in learning about the physical principles and techniques of quantum computer programming using IBM Qiskit. To begin these liveProjects you’ll need to be familiar with the following:

  • Python programming basics
  • Basic algebra (equations and surds)
  • Basic linear algebra (vectors and matrices)
  • Basic geometry (diagrams and angles)
  • Basic complex numbers (format and simple manipulation)
  • Basic probability (using fractions and normalization)
  • Basic classical computing
  • Basics of quantum computing and Qiskit
  • Use the command line in a terminal
  • Create a virtual environment in Python using Conda or otherwise
  • Install packages into a Python virtual environment, using pip
  • Code and run Python programs using Jupyter Notebook

you will learn

In this liveProject, you’ll learn core quantum computing skills including creating, visualizing, and animating quantum circuits, and you’ll understand the role of quantum computing in the industrial world.

  • Construct and program two-qubit quantum states the CNOT quantum gate using IBM Qiskit
  • Quantum entanglement (a fundamental quantum concept that Einstein famously referred to as "spooky action at a distance")
  • IBM Quantum Computer
  • Investigate and report on important quantum vocabulary


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book resources
Get full access to select books for 90 days. Permanent access to excerpts from Manning products are also included, as well as references to other resources.

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  • Run Two-Qubit Circuits project for free