@jaykay_z Profile picture

Junkai Zeng

@jaykay_z

Quantum | RAP @ SUSTech | Prev: Q-Ctrl | (PhD @) VT | (BS @) USTC personal account, opinions are my own.

Joined July 2019
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google quantum team announcing qubit processor running below error correction threshold is undoubtedly exciting but it has nothing to do with crypto price dropping. Seriously, that would be really ridiculous


it still boggles my mind that zapata has closed


Junkai Zeng Reposted

Did you know that some of the drugs for ADHD that are prescription abroad are sold as supplements in the US and vice versa? This is such a wild landscape.


after all these years as a researcher writing papers is still as painful as ever. I propose we create a new role titled research writer, to complete the triangle alongside research scientist and research engineer


Junkai Zeng Reposted

This is not news IMO. QCNN is just a QNN port of a MERA tensor network, which has been known to be scalable on classical computers for 20 years.

Quantum Convolutional Neural Networks are (Effectively) Classically Simulable

hamptonism's tweet image. Quantum Convolutional Neural Networks are (Effectively) Classically Simulable


omg this gives me goosebumps

At the height of One Million Checkboxes's popularity I thought I'd been hacked. A few hours later I was tearing up, extraordinarily proud of some brilliant teens. A thread about my favorite story from running OMCB....



Junkai Zeng Reposted

If you want to approach differential geometry and Lie groups from a computational perspective, this release by Springer is the right one for you. The examples are broken down in more details than in the usual math texts. Those in robotics, ML and machine vision will love it.

DiracGhost's tweet image. If you want to approach differential geometry and Lie groups from a computational perspective, this release by Springer is the right one for you. The examples are broken down in more details than in the usual math texts.

Those in robotics, ML and machine vision will love it.

gotta say my fear that people might eventually realize quantum computing could be ultimately useless is growing as we are making it deeper into the error correction code game


This is good

At the height of One Million Checkboxes's popularity I thought I'd been hacked. A few hours later I was tearing up, extraordinarily proud of some brilliant teens. A thread about my favorite story from running OMCB....



received notification, got my first research grant


I need to physically attend this festival

It’s official. AI has gotten out of hand.



Junkai Zeng Reposted

Disappointing to see Sam Altman today stoking geopolitical tensions, ignoring his own advice. A US-China AI arms race would be an incredible and unnecessary danger to impose upon humanity. Pursuing it without even first attempting cooperation would be extremely reckless.

TolgaBilge_'s tweet image. Disappointing to see Sam Altman today stoking geopolitical tensions, ignoring his own advice.

A US-China AI arms race would be an incredible and unnecessary danger to impose upon humanity. Pursuing it without even first attempting cooperation would be extremely reckless.

OpenAI CEO Sam Altman, back in 2020: "it's so easy to get caught up in the geopolitical tensions and race that we can lose sight of this gigantic humanity-level decision that we have to make in the not too distant future."



Junkai Zeng Reposted

join my don't run club. we hug for an hour and tell each other sweet things


Junkai Zeng Reposted

"Quantum mechanics is just thermodynamics in imaginary time." It sounds like a hand-wavy, quasi-philosophical statement. But with a brief dive into the relationship(s) between hyperbolic and parabolic PDEs, it becomes possible to formalize it mathematically. (1/16)

getjonwithit's tweet image. "Quantum mechanics is just thermodynamics in imaginary time."

It sounds like a hand-wavy, quasi-philosophical statement. But with a brief dive into the relationship(s) between hyperbolic and parabolic PDEs, it becomes possible to formalize it mathematically. (1/16)
getjonwithit's tweet image. "Quantum mechanics is just thermodynamics in imaginary time."

It sounds like a hand-wavy, quasi-philosophical statement. But with a brief dive into the relationship(s) between hyperbolic and parabolic PDEs, it becomes possible to formalize it mathematically. (1/16)

This is entertaining

I can't believe this site is (mostly) free.

erikbryn's tweet image. I can't believe this site is (mostly) free.


Junkai Zeng Reposted

Nothing beats the feeling of discovery at night

BasedBeffJezos's tweet image. Nothing beats the feeling of discovery at night

Junkai Zeng Reposted

Conference alert! Join us for the "Q-ESCAPE" conference (Quantum Errors, Control & Sensing: Principles, Applications & Engineering), happening July 21-24 in Shenzhen, China! Check out the invited speaker list in the flyer. Please spread the word and we hope to see you there!

jaykay_z's tweet image. Conference alert!
Join us for the "Q-ESCAPE" conference (Quantum Errors, Control & Sensing: Principles, Applications &  Engineering), happening July 21-24 in Shenzhen, China! Check out the invited speaker list in the flyer. Please spread the word and we hope to see you there!

I firmly believe that vacation is a must-have for brain workers

jaykay_z's tweet image. I firmly believe that vacation is a must-have for brain workers
jaykay_z's tweet image. I firmly believe that vacation is a must-have for brain workers

didn't they get a ridiculous amount of funding only a few years back

Interesting, according to @FinancialReview the Australian government will invest 940 M $ into @PsiQuantum which aims at building error corrected #quantum computers using photonics technology. Read more here: afr.com/technology/lab… Any thoughts?

AndreasAtETH's tweet image. Interesting, according to @FinancialReview the Australian government will invest 940 M $ into @PsiQuantum which aims at building error corrected #quantum computers using photonics technology.
Read more here: <a style="text-decoration: none;" rel="nofollow" target="_blank" href="https://t.co/dcTjgBr7sM">afr.com/technology/lab…</a>
Any thoughts?


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