[Youtube Review][Veritasium] How To Make a Quantum Bit

(Recommended)Popular Videos : [Veritasium] How To Make a Quantum Bit

 

This time, I will review the popular YouTube videos.

These days, even if it's good to watch on YouTube, sometimes people skip it or don't watch it if it's too long.

When you watch Youtube, do you scroll and read the comments first?

To save your busy time, why don't you check out the fun contents, summary, and empathy comments of popular YouTube videos first and watch YouTube?

(Recommended)Popular Videos : [Veritasium] How To Make a Quantum Bit

https://www.youtube.com/watch?v=zNzzGgr2mhk

 

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Playtime Comments : [Veritasium] How To Make a Quantum Bit

GG*********:

6:33 the password is written on the whiteboard. Maybe they are so confident that they'll succeed in having a fully working quantum computer soon that they say "aah passwords, encryption, all that is useless soon anyway, so I can just publish my password now." :p

lk************:

5:18 my head can't take it any more. It's enough of science for today.

Se************:

04:10 that is face of a happy boy. lol

sh*****:

6:32 i know the beauty of silicon :)

mr*********:

Nice video, but it would be great to know a bit more. I mean especially for instance what kind of techinque they exactly use? Quantum annealing? I suspect that this quantum transistor works because of the tunneling effect, if so it's very important, and it should have been mentioned in the presentation. How am I supposed to understand the words 2:27 ''what you've created is a special quantum superposition... with a specific face between two superpositions''.

I've always thought that the superposition exists only when there is no decoherence=no interactions=no measurements. As far as I know the superposition comes from Schrodingers equation which represents a quantum probability wave, and the only thing we can do with it is to collapse by observing, or if you prefer interact with it. I've really never thought there is a way to create a superposition, so I'm extremely confused right now.

When we apply magnetic field to define, or flip electrons' spin theoretically the superposition should wash away. I thought we can take advantage of the superposition only without interacting with the quantum object, but what would be necessary is to have a several entangled let's say electrons, so that when we measure them we can store and use all of the informations which they carried.

I really appreciate your, and Prof. Andrea work, because anyway it's still probably one of the best explanations I've come across.

 

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Top Comments : [Veritasium] How To Make a Quantum Bit

no*********:

KILOGRAMS ! ! ! ! YEAH MAN ! ! ! F POUND ! ! ! F OUNCE ! ! IT IS KILOGRAMS FOR SCIENCE AND THE WORLD

N*:

Amazingly clear explanation!
Bill Gates said "if you cant explain it in simple terms you don't understand it". Well prof. Morello clearly understands everything there is to know about it.

Do***********************:

Hugely educational video, thank you! That Silicon-28 coincidence is an amazing blessing to the Quantum Computing effort!

Tj***************:

This is really a great lecture, fascinating how smart people can be! 

ma****:

Hey veritasium or anyone else, when i finish my Bachelor's degree in physics and my master's degree, i would really like to help building quantum computers maybe in Delft(that's in holland where i live), or elsewhere. How would i join a group of people that is doing this? It seems all so exciting. Any ideas?

Ph******:

"No waste in science" -- no it's because it's Australia and research here relies on using bent coat hangers due to lack of funding

Ma**********:

So... When a quantum physicist says "a very long time", how long is he refering to?

Sa********:

"So you are watching, on the oscilloscope screen in real time, the measurement of the direction of a single nucleus and our ability to flip it at will every five seconds."

Mind. Blown.

Mc*******:

I am astounded they were able to measure to that degree of precision a single electrons spin and the Nucleus... mind blown.

Ra*************:

This is fascinating.  Enjoy!

Sc******:

Excellent video, now I can go and start building my Quantum computer in my basement ;-)

Se***:

The only explanation of quantum computer that is understandable to public, although I don't understand it :'(

Two points I surprised:
1. In 2000' some professors explained they will make quantum computers. At that time, it sounds like bluff to me. now It's real. amazing.
2. silicon is reused for quantum computer. 30 years effort for silicon transistor does not waste.

Ma********:

i love the little "bing!"

Ch************:

As an electron, I can confirm that I'm usually in the spin-down state.

Ce*********:

So...the nucleus' spin acts similarly to a p-n gate and the responding electron's spin is the qubit value? Or am I totally missing how this works?

In*******************************************************************************:

Analogy for quantum computers; you could say a quantum computer is like a jumbo jet and a normal computer is a car, because a jumbo jet is really expensive, and not something you'd expect to see in every household. but this analogy isn't perfect because a jumbo jet can carry more people than a car (like 50x more), and can go further.
A better analogy is that normal computers are cars, but quantum computers are space shuttles. The quantum computer can take you to space, your car's engine couldn't provide enough energy to take you to space (and obviously cars can't fly). But your space shuttle (quantum computer) isn't good at taking you to the shops, or to your friends house, where as a car is. But also a quantum computer is very expensive and not going to be in everyone's homes.

Di*********:

that guy has a classical crazy scientist accent

St********:

This video deserves an update, since they now developed a so called flipflop Cubit, wich is controlled with electric current instead of a magnetic field. It would be fun to see the, what points in this video has changed now and why

ja***********:

excellent video. you just made me understand how a quantum bit actually works in practice. thank you!

Wi************:

awesome stuff. i love when the theory meets engineering

De*********:

"bla bla bla....  spin, ¡BING!"

Iq********:

The guest claims to read the spin of a a single phosohorous nucleus?  Really?  a SINGLE nucleus?  Are you sure?  WHy I find this so hard to believe is that the energy, DELTA E, assosicated with that change is goinged to be SWAMPED so heavily by other background energy fluctuations in the environment.  Is this guy really measuring wht he think he is?  It is very hard to take such claims seriously. 

Ga***********:

the "bing" gets me every time XD

Mi***:

Seems that quantum CPUs would be much more vulnerable to magnetic interference?

Th*****************:

wish i didn't start a research paper for course work on quantum computing

Um**************:

All that? You're a genius XD

Ma*********************:

When computers were first developed, people were using light bulbs to represent numbers.  Each light bulb represented a number in Base 2.  
Light Bulb 1 =  1 (2^0)
Light Bulb 2 =  2 (2^1)
Light Bulb 3 =  8 (2^3)
Light Bulb 4 = 16 (2^4)

Ku*******:

RUN!!! That man is LOKI..

qw********:

Instructions confusing, created thermonuclear weapon

Co*************:

I would like to be presented a few examples of algorithms that benefit from quantum computers.

Ve***********:

Please do more of these excellent explanations on Quantum Phys.

Ac****:

My brain fried even tho my iq is 145

Ae*********:

But how do you create an entangled state between two of these qbits?

Jo*************:

mind blown. would love to see a video on how we could use this kind of data. 

 

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[Veritasium] We gathered comments about popular videos and looked at them in summary, including play time, and order of popularity.

It's a good video or channel, but if you're sad because it's too long, please leave a YouTube channel or video link and I'll post it on this blog.

 

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