Logic Gates Rotate Qubits

In which we explore the strange effects of quantum logic gates, and what that tells us about the nature of qubits.

0:00 Intro
0:16 Classical Bits
0:38 Similar Qubit Behavior
1:20 The Hadamard Gate
2:56 Measurement
4:25 Measuring Between H Gates
5:02 The Bloch Sphere
5:43 Logic Gates As Rotations
7:16 Review

[Eznid]

Out of maybe dozens I have seen so far, this is the only one that is not a clickbait offering only useless regurgitated platitudes without any real understanding by the "content-creator" of anything quantum physics or quantum computing.

[dialectphilosophy]

These videos are very well done. Straightforward explanations and breaks the concepts down in easy to grasp ways… can’t wait to see more!

[rockapedra]

I've seen many videos attempting to explain this and just creating massive confusion. Yours, on the other hand, finally nailed it for me. Thank you! You are a gifted communicator!

[PrayookJatesiktat]

I really like the way you explain the Hadamard Gate.

[guregori_san]

this is so beautiful, your video is a peace of art. If only we had this kind of teaching in school we would all be scientist.

[novachromatic]

I'm currently learning quantum computing under Qubit by Qubit, and I can vouch for the quality of this video in teaching some of those hard-to-grasp concepts!

[CSRookie]

Thanks for your videos! I am a CS major person, but when I see these videos about math, it just makes me go “wow”

[martino]

Hope you keep up making videos like these, by far the most in depth, yet understandable videos on quantum computing I've found so far

[HighWycombe]

The challenge of learning stuff by YouTube is finding a video that takes you from what you currently understand and moves you forward to the next level. Before this video I had studied Quantum Mechanics along with Linear Algebra, but I knew next to nothing about Quantum Computing. This video was exactly right for me. I now understand how Quantum Logic gates differ from conventional logic gates. Next I want to understand how that makes Quantum Computers able to explore many options at the same time, given that they are still fundamentally binary, i.e. Qubits are still only 0 or 1, but they have a varying probability of being 0 or 1. So, where's the next video in this series please... I'm stuck! There's a gap in the market for such a YouTube video.
Sorry, almost forgot to add: THIS VIDEO IS GREAT... by far the best on YouTube for getting started on Quantum Computing. It contains real information, not just fluff about how Quantum Computing will change the world etc.

[adeebh.s]

I think you should explain how a bloch sphere is formed or else it'll confuse the viewers, since people might think that only 2 dimensional are required to represent a Qubit since the basis vectors are just |0> and |1>.

[richtigmann]

This was a beautiful illustration, just a really good general explanation of how Qubits work in a quantum computer, with nice sound effects and all! Just amazing.

[Tomas-zvjs]

You have made this video very easy to understand the basics of qiskit. Thank you!

[MithoThoup]

Ive got a presentation on quantum computers next week and this vid saved my life

[gemini_]

This is a fantastic video for quantum beginners like me! Thank you! Keep up the good work!

[kmunson]

Pure gold! Thanks for this video. Reinforces the saying, if you know something really well, you can explain it simply.

[tedn]

This is a great video. Thank you for being the first person the make sense on this topic.

[mMaximus]

This is easily the best explanation of what is and how a qbit works

[parassharma]

What a great explanation! To the point explanation is very essential for someone looking to just understand the fundamentals in a clear and concise way. Please keep making awesome vids.

[downformaintenance]

This is wonderful, thanks so much.
Every other quantum computing explainer I've seen on YT basically says, it's a qubit then some magic happens. I've always thought it must be too complicated.

[qmster]

These videos are so sneaky, making me feel smart by guessing what the H gate does while we were still in a 2D circle