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Quantum computing learning portfolio · Sai Ganesh Chidambaram

Quantum Computing,
Finally Intuitive

I built this to learn quantum computing properly and to share what I learned: fourteen modules that follow a quantum computer from room temperature down to ten millikelvin, then into current research, with 226 live labs and an explained answer to every question.

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My learning path
14 modules
Error correction · Module 10 of 14 The toric code and anyons
62%
Bloch sphere |ψ⟩ = α|0⟩ + β|1⟩
• Next lesson Shor's algorithm

Fourteen modules in four parts

Start with the math, descend through the five temperature stages of a real machine, then go inside the hardware and out into the algorithms that run on it.

Part 1 · Math toolkit

Linear algebra for quantum computing

Vectors and Dirac notation, matrices, eigenvalues, tensor products and the Schmidt decomposition, built from scratch with pictures.

9 lessons · 18 labsOpen part 1
Inside the machine

See the hardware before you write the code

A superconducting quantum processor hangs at the bottom of a dilution refrigerator, a few thousandths of a degree above absolute zero. The course is organised around the same stages: each module sits one plate further down, from 300 K to the mixing chamber at 10 mK.

  • Microwave pulses travel down coaxial lines to steer each qubit.
  • Every gold stage is colder than the one above, filtering out heat and noise.
  • The mixing chamber cools the qubit chip to around 10 millikelvin.

Move your pointer over the machine to look around it.

Start the descent at 300 K

Built to make it click

Intuition first, then the formalism, with every idea backed by something you can run, poke at or check.

226 live labs

Bloch spheres, a 4-qubit circuit simulator, Grover and Shor, a 2,000-qubit stabilizer simulator, decoders and lattice surgery, all running in your browser.

Module by module

Fourteen modules in four parts with a clear lesson path, progress for every lesson and module, and a key-ideas recap at the end of each lesson.

1,410 questions with reasoning

A ten-question check after every lesson. Write down your own reasoning, check your answer, then read why it is right.

Computed, not drawn

Every simulation runs on a real state-vector engine, so the numbers you see are calculated. Your progress stays private in your browser.

Portrait of Sai Ganesh Chidambaram
About me

Sai Ganesh Chidambaram

Author of this course · MSc, McGill University

Sai Ganesh holds an MSc from McGill University and is passionate about AI and computational modelling. He has over four years of work experience with premier organizations including the National Institute of Ocean Technology, the University of Manitoba, Vecmocon and Siechem. He has published more than 16 research works in premier conferences and journals, cited by researchers in the field, and has 5 patents published with the Indian Patent Office. He has also received several laurels at national and international hackathons, conferences and bootcamps.

MScMcGill University
4+ yrsResearch & industry
16+Research publications
5Patents published (India)
National Institute of Ocean Technology University of Manitoba Vecmocon Siechem

Questions, answered

Do I need a physics background?

No. The course assumes high-school algebra and a little comfort with complex numbers. Module 01, the math toolkit, builds the linear algebra you need, and everything else is built up from there.

How do I complete a lesson?

Read the lesson, try its labs, then take the ten-question check. Get seven or more right on the first try and the lesson is marked complete in your module. You can retake any check with the options shuffled.

Where is my progress saved?

Only in your browser. Lesson progress, quiz scores and the reasoning notes you write are stored on your device, and nothing is sent anywhere.

Who is this for?

Students, engineers and researchers who want a real understanding of quantum computing — from first principles all the way to fault-tolerant architectures.

Start with your first qubit today.

Begin with the math toolkit, or go straight to 300 K.

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