Quantum Computing with Light: The Breakthrough?

Correction to what I say at 10:36 -- The ions are of course positively charged. Sorry about that!

What if we could harness the power of photons to process information? We can! It's called photonic computing. It's one of the new approaches to quantum computing - and it's looking more and more likely that it could be the key to make quantum computers work.

It's not the only newcomer. In this video, we'll take a look at photonic computing and two other newcomers: optical tweezers and topological quantum computing. Maybe the breakthrough for quantum tech is just around the corner.

🔗 Join this channel to get access to perks ➜

00:00 Intro
00:22 Quantum Computing Recap
02:12 Front Runners
06:23 Newcomer #1: Photons
10:20 Newcomer #2: Atoms in Tweezers
12:48 Newcomer #3: Topological States
15:40 Summary
16:00 Learn Quantum Computing With Brilliant

#science #quantum #technology

[Peter-efut]

Ma’am, I have learned more about physics by watching your channel than all my school years could ever provide. I just wanted to say a vey big thank you. Peter U.K.

[roshan]

This was brilliant, thank you. I feel that I can trust the thoroughness of the research done and that you will talk about tradeoffs and not get swept up the hype of one technology.

[ofskittlez]

You said "ions are atoms that are missing some electrons, so they're negatively charged." Wouldn't they be positively charged?

[DavidEvans_dle]

300 years from now a student is going to build a lego quantum computer as a "show and tell" experiment just to spite that famous Nobel prize winner Sabine Hossenfelder.😊

[Trixter]

The color of Sabina's Pullover is like quantum entanglement. You understand it when you see it, but you have a hard time describing it to others.

[KatjaTgirl]

Thank you Sabine. At 10:36 you mention that "ions are atoms that are missing some electrons so they are negatively charged". However, if one removes negatively charged electrons from neutral atoms, the resulting ions would be positively charged right?

[AICoffeeBreak]

Thanks for the update. I was curious what happened in the quantum computing hype bubble. :)

[Eric-zowo]

0:21: 🔬 Quantum computing has made significant advancements since 2021, with the ability to calculate using entangled qubits for certain mathematical problems.
3:34: 🔬 Quantum advantage and utility are demonstrated through fast calculations and random distributions using quantum processors.
6:57: 🔬 The challenge for photonic quantum computing is to have reliable sources for single photons and to shrink down all the elements onto chips.
10:32: ! Atoms in tweezers are a variation of ion traps, but using neutral atoms instead of charged ions allows for more scalable 3-dimensional configurations.
14:14: 🔬 Multiple companies, including Microsoft and Google, are making progress in topological quantum computing, which could lead to easier scaling of quantum computers.
Recap by Tammy AI

[johannesschutz]

Sabine hitting us with the only valid measurement of large areas: football fields

[sapelesteve]

Well done Sabine! It will be interesting to see which company comes up with the best Quantum Computing technological innovations going forward. I am certain that you will keep us well informed!

[Kamran_Aghayev_MD]

at 10.40 you say that ions are atoms that are missing some electrons and they are negatively charged. But if you remove negatively charged electrons from an atom it should be positively charged.

[epelly]

I love how it went from Quantum Supremacy -> Quantum Advantage -> Quantum Utility

[JohnSmith-jugi]

I always like and comment because you are terrific and seldom mention that I should like and subscribe (I am) and whenever you do, you do it with grace and intelligence.

Love that you treat us like we are not morons even if compared to you we are lacking.

Thank you for being brilliant and yet taking the time to explain things to laypeople. You are my Feynman.

[nneeerrrd]

Thank you, Sabine! Love your method of presenting the complex things.

[paulmcdonald]

Thank you on behalf of a lay person curious about what's the next step in computing and all things exacting. You keep it real. Please keep up your interesting and current content.

[joseraulcapablanca]

Thanks Sabine, you have given me a new ambition, indeed I have already begun assembly of my first prototype Lego quantum computer. Thanks for letting me know where my competition is.

[Julian-ofqj]

Great summary! Would have loved your take on DWave's approach using quantum annealing!

[Techmagus]

Very nice summary of the actual development and wow a lot is going on. Looks like we are now slightly above the first steep climb of the hypetrain, but have not reached the valley of tears and death.

[alanparkinson]

"Ions are atoms missing some of their electrons, so they are negatively charged." Oops, silly mistake Sabine, they would, of course, be positively charged!

[tms]

Great video as always!

As someone working on the field, it's always great to see a sobering take on the matter. There's so many advancements, but there is so *much* overhype and borderline scams that filtering out good information becomes difficult. And ... well, even if the progression is great, these advancements are *still* not enough to get an useful advantage.

Just gonna point out one quick thing. ColdQuanta renamed themselves Infleqtion late last year. As usual, the new name *has* to have a forced Q somewhere in it.