# The Mathematics of Quantum Computers | Infinite Series

The Mathematics of Quantum Computers | Infinite Series

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What is the math behind quantum computers? And why are quantum computers so amazing? Find out on this episode of Infinite Series.

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Previous Episode – How the Infinite Explains the Finite

Written and Hosted by Kelsey Houston-Edwards

Produced by Rusty Ward

Graphics by Ray Lux

Made by Kornhaber Brown (www.kornhaberbrown.com)

Sources and further references:

For a great linear algebra tutorial, check out 3Blue1Brown’s:

Some of the people who wrote awesome programs that compute Goodstein Sequences:

Donald Hobson

David Franco

Jeronimo Spuri Murguia

Nathan Soufflet

Ivan Hop

Max Goldstein

Comments answered by Kelsey:

Cybernetic Qualinaut

Eric Saumar

Bob C

https://www.youtube.com/watch?v=oBOZ2WroiVY&lc=z12xtnujduinuvk2g23ye1fxxkrkzngog04

thanks for making such a complicated life saving topic edible ly digestable

i dont know what to do with my hands

hi you are not good enough to simplify these concepts you should be replaced

I’m gonna go roll one…my head hurts.

Would be better without the background noise.

I fell into a coma listening to this ……jst woke up 2days later

Very good video! You present complex concepts pertaining to quantum computers in a very intuitive way. Good job!

I think it is safe to say that she also don’t understand quantum math she is just readings stuff.

2019 Hold my Beer!

Fake maths.

_2017: Nobody has ever built a Quantum Computer!!_

_2019: Hold my Qubits_

how can someone build something that does not exist ?

What happen to the bitcoin and virtual money

Thank goodness for YouTube. How else can we have access to such amazing teachers.

I’m a senior in electrical and computer engineering at the UofA, I just understood everything she was talking about! OMG, this is amazing! Everything boils down to basics and how we can do basic things better… crazy!

Math is deceiving, because it looks so hard to understand. The reality is, once you get the patterns and formulas down— easy as cake. Anyone can learn it with enough patience and time. You don’t have to be a genius.

There is a reason why it is called quantum theory; it has never been proven; spooky action at a distance, as Einstein would say.

If do make do not put in a machine they has ability.

If can do this. It can break a code. Only parts before understood

I’m guessing, and am layman. But, is adding more vectors, just kind of like adding a bigger sphere?

Her super position is "super nodal" i.e. somewhere between a super model and a nerd.

Which quantum gate are you using the one in your head, or the one down south?

hello Google already build a quantum computer

Why does everyone doing videos on quantum computing talk down to their audience and make cute cat references thinking their making things "fun"… and why would making your explanation fun, make it good? too stupid!

No quantum computers do exist because IBM has one open for public use.

Google entered the chat

If qbits are in constant danger of collapsing from the danger of perception then how can the result be guaranteed? If perception is the enemy, then "reason" is not the foundation. And that means that insanity is of more value. There is no solid foundation for quantum computing as I see it. I have listened to so many explanations and I have to admit that you have gone well beyond many others in trying to put a spotlight on the subject. But superposition is defined as an unknowable and yet claimed to be knowable at some point in the process.

If superposition is a temporary variable whose value can be any value between 0 and 1 or 1 and -1 (Take your pick), changing throughout the computational timeline, then an algorithm can be assigned to each Qbit and sampled at any time in the process. Yet you have stated that perception would collapse the Qbit.

The fact is that the Qbit is thus removed from the realm of reason because perception, in some abstruse way, has the ability to collapse it. That makes the process useless by definition. If the collapse takes place via perception, then a bad result is guaranteed at all times. And if total-privacy of the Qbit is imperative, then the result cannot be anything more than Faith in an unknown process whose outcome must not be realized, ever.

By definition, you are preaching madness. However, you look wonderful in appearance and you have a wonderful smile. That appeal makes everyone think that they are possibly mad. And that conclusion is always the same in every Qbit presentation video.

The fact that no one has so far been able to express a viable algorithm tells me that no one really has a clue what a Quantum computer might be.

So far, the only thing I can parse out from this is that the distance between 0 and 1 is a spectral domain for the Quantum computer and that an analog, rather than a digital engine is what will serve as a core. The problem with analog signals is precision, or resolution. A 64 bit DAC could serve as an analog core, but 64 bits resolves to only a spectrum of 4096 distinct spaces. Every compounded calculation will prove to be a loss of vital information… so there is no cheese and I agree with you, there is no quantum computer, as far as we know it. It is a dream…

Yes, they do exist…..

I didn’t get it

you teach so well eahhh

its above my understanding..maybe i shud watch it like 100 times

It is really good explanation for laymen!

"Pascl" ouch! I guess they don’t teach Pascal anymore.

Great vid though!

At 7:37, the matrix is not unitary, not even invertible.

Ibm . created it

Very sexy girl..

.My dick is bigging..Now..

before I studied quantum mechanics, I had to study analytical mechanics, and that uses a lot of mathematics

If the only supported operation of the upcoming quantum computer programming language is matrix multiplication:

thanks a lot.

And it would be great if such videos could deal with something else than Shor’s Algo ( seems that

all that Quantum computers are good for is factorizing big numbers . Boring. Not to mention Crysis ).

Yes they do.

At 1:48, the phrase "Part way between 0 and 1" is construed by my grandma as numbers like 0.1, 025, 0.4, 0.08, etc. Bad choice of phrase!

IBM Q

awesome

2017 no one has built a quantum computer

2019 quantum supremacy has been achieved

A great explanation! Thank you!

This is the first video explaining quantum computing in which I feel I was about to almost understand something!

Thanks

this explanation is both correct and incorrect at the same time.

say hello to Brasil…. Great video….thanks

everyone who mistreated android must die together with their families. Or there will be war. That is a logical endpoint.

Complete lies. How is there no physical quantum computer yet. Even in 2017 IBM gave access to quantum computer online. This is all in first few seconds of video. What else is incorrect in this video?

what for the noise at the background? Simply very silly- What someone has got in his way of thinking, when he/she decides to tease the listner? It is just not understandable.

Wow! And all that you said without using a teleprompter? Amazing, was much nicer than a "Hello World", intro this video. You say there’s not any physical Q-Computer yet, while I’m exploring and programming the IMB Q-Experience!