ChunnyD
@chunyangding.com
Fluxonium enthusiast, current #PhD at Schusterlab (formerly at Google, UChicago, IonQ, and Yale), broad reader, lifelong learner, eternal dreamer, cat dad. https://chunyangding.com
Reposted by ChunnyD
Hey! Northern hemisphere folks:
this is my annual reminder to myself and perhaps also to you that if you have the schedule autonomy to permit it, get out for a walk or whatever during daylight hours! It's important!
You can work more when it's dark but you need whatever sunlight is available!
this is my annual reminder to myself and perhaps also to you that if you have the schedule autonomy to permit it, get out for a walk or whatever during daylight hours! It's important!
You can work more when it's dark but you need whatever sunlight is available!
November 18, 2025 at 4:39 AM
Hey! Northern hemisphere folks:
this is my annual reminder to myself and perhaps also to you that if you have the schedule autonomy to permit it, get out for a walk or whatever during daylight hours! It's important!
You can work more when it's dark but you need whatever sunlight is available!
this is my annual reminder to myself and perhaps also to you that if you have the schedule autonomy to permit it, get out for a walk or whatever during daylight hours! It's important!
You can work more when it's dark but you need whatever sunlight is available!
Reposted by ChunnyD
This is lunacy. The Chinese scholars I know are among the hardest working, most selfless people I've ever encountered. They want to contribute to our intellectual endeavors, and they make our research teams better.
U.S. Congress considers sweeping ban on Chinese collaborations
Researchers speak out against proposal that would bar funding for U.S. scientists working with Chinese partners or training Chinese students
www.science.org
November 14, 2025 at 1:04 PM
This is lunacy. The Chinese scholars I know are among the hardest working, most selfless people I've ever encountered. They want to contribute to our intellectual endeavors, and they make our research teams better.
I will admit, however, that I still do absolutely love the sound of the rain on the roofs. Almost makes up for the blocking of an astronomical/geophysical event.
November 13, 2025 at 2:35 PM
I will admit, however, that I still do absolutely love the sound of the rain on the roofs. Almost makes up for the blocking of an astronomical/geophysical event.
I swear, the only time California clear skies would have been appreciated is the day that we get clouds and rain 🥲 #AuroraBorealis #AtThisTime #InThisPartOfTheCountry #LocalizedEntirelyInYourKitchen
November 13, 2025 at 2:28 PM
I swear, the only time California clear skies would have been appreciated is the day that we get clouds and rain 🥲 #AuroraBorealis #AtThisTime #InThisPartOfTheCountry #LocalizedEntirelyInYourKitchen
Maybe the annealers actually reached that goal, and the universe just sped up?? #UniverseGate
November 12, 2025 at 7:36 PM
Maybe the annealers actually reached that goal, and the universe just sped up?? #UniverseGate
all gas, no brakes!! #QuantumComputing #RL
November 12, 2025 at 5:25 PM
all gas, no brakes!! #QuantumComputing #RL
Reposted by ChunnyD
We taught a quantum computer to learn from its own mistakes-- without stopping.
Our RL framework repurposes QEC detection events as learning signals to stabilize the system.
Result: Improved Logical Error Rates for both Surface and Color codes on Willow!
see arxiv: arxiv.org/abs/2511.08493
Our RL framework repurposes QEC detection events as learning signals to stabilize the system.
Result: Improved Logical Error Rates for both Surface and Color codes on Willow!
see arxiv: arxiv.org/abs/2511.08493
November 12, 2025 at 4:44 AM
We taught a quantum computer to learn from its own mistakes-- without stopping.
Our RL framework repurposes QEC detection events as learning signals to stabilize the system.
Result: Improved Logical Error Rates for both Surface and Color codes on Willow!
see arxiv: arxiv.org/abs/2511.08493
Our RL framework repurposes QEC detection events as learning signals to stabilize the system.
Result: Improved Logical Error Rates for both Surface and Color codes on Willow!
see arxiv: arxiv.org/abs/2511.08493
It's such an incredible movie! I was lucky to see it on the big screen during a film festival - definitely worth it for the cinematography!
November 10, 2025 at 8:08 PM
It's such an incredible movie! I was lucky to see it on the big screen during a film festival - definitely worth it for the cinematography!
Only question we had - we called the method from 5a "cryoscope", following Rol's 2020 paper. For the method in 3a, it seemed novel, so we just called it "Helling's method" - any advice on what you call it in your lab, @andreasateth.bsky.social ?
November 8, 2025 at 5:26 PM
Only question we had - we called the method from 5a "cryoscope", following Rol's 2020 paper. For the method in 3a, it seemed novel, so we just called it "Helling's method" - any advice on what you call it in your lab, @andreasateth.bsky.social ?
It's a fantastic paper - one of my labmates went through it for a journal club, and quickly applied the techniques to our #fluxonium qubits. Within three days, we saw both IIR and FIR effects, and implemented predistortion with the #QICK.
Check out our newest paper "Calibrating magnetic flux control in superconducting circuits by compensating distortions on timescales from nanoseconds up to tens of microseconds" published in the @apsphysics.bsky.social
journal @physrevresearch.bsky.social 7, 043142 (2025).
[3/7]
journal @physrevresearch.bsky.social 7, 043142 (2025).
[3/7]
November 8, 2025 at 5:23 PM
It's a fantastic paper - one of my labmates went through it for a journal club, and quickly applied the techniques to our #fluxonium qubits. Within three days, we saw both IIR and FIR effects, and implemented predistortion with the #QICK.
Reposted by ChunnyD
Berg's got a good thread on Watson. Dude was a human, flawed as any. Science is not the singular work of one single flawed human. We'd never make progress if that was the case. 🧪
Bluetorial-Jim Watson
I met Jim Watson a few times but did not know him well. However, I was greatly influenced by his book “The Double Helix”. He was a complicated human being with some very, very bad features, but some good contributions.
What follows is my personal perspective.
1/41
I met Jim Watson a few times but did not know him well. However, I was greatly influenced by his book “The Double Helix”. He was a complicated human being with some very, very bad features, but some good contributions.
What follows is my personal perspective.
1/41
a cartoon says hey everybody an old man 's talking while bart simpson looks on
ALT: a cartoon says hey everybody an old man 's talking while bart simpson looks on
media.tenor.com
November 8, 2025 at 3:29 PM
Berg's got a good thread on Watson. Dude was a human, flawed as any. Science is not the singular work of one single flawed human. We'd never make progress if that was the case. 🧪
Reposted by ChunnyD
did you know the Mountain Goats have a new album out today and you can buy it or stream it and dance to it in your living room or while driving or on the subway and it's a whole vibe? well now you know that 30tgrs.ffm.to/ttfafpb
The Mountain Goats - Through This Fire Across from Peter Balkan
Choose your preferred music service
30tgrs.ffm.to
November 7, 2025 at 1:28 PM
did you know the Mountain Goats have a new album out today and you can buy it or stream it and dance to it in your living room or while driving or on the subway and it's a whole vibe? well now you know that 30tgrs.ffm.to/ttfafpb
(I do realize that I have also just redefined the trope "#moonshot" in a very roundabout way!)
November 6, 2025 at 10:09 PM
(I do realize that I have also just redefined the trope "#moonshot" in a very roundabout way!)
Is it meaningful to do so? Will there actually be precious material on other planets? Will we actually find alien life out there? We're really not sure right now. But folks are enthusiastic about the prospect of it, and it's worth the effort.
November 6, 2025 at 10:09 PM
Is it meaningful to do so? Will there actually be precious material on other planets? Will we actually find alien life out there? We're really not sure right now. But folks are enthusiastic about the prospect of it, and it's worth the effort.
But the main reason for building a rocket isn't to get to work faster, or even to go to a different continent. We are building a rocket to reach places that no kind of automobile would ever be able to get to.
November 6, 2025 at 10:08 PM
But the main reason for building a rocket isn't to get to work faster, or even to go to a different continent. We are building a rocket to reach places that no kind of automobile would ever be able to get to.
There are different kinds of classical computers - you can have a sedan for every day use, but there's also supercomputers that are F1 racecars; able to go much much faster. Right now, some of those supercars are faster than our rockets, especially since our rockets tend to explode!
November 6, 2025 at 10:08 PM
There are different kinds of classical computers - you can have a sedan for every day use, but there's also supercomputers that are F1 racecars; able to go much much faster. Right now, some of those supercars are faster than our rockets, especially since our rockets tend to explode!
New potential metaphor - if classical computers are cars, then quantum computers are rockets. You could, in theory, take a rocket to get to work, but it would be kinda terrible all around. But, it would be really really hard to drive to the moon, and damn near impossible to drive to Alpha Centauri
November 6, 2025 at 10:06 PM
New potential metaphor - if classical computers are cars, then quantum computers are rockets. You could, in theory, take a rocket to get to work, but it would be kinda terrible all around. But, it would be really really hard to drive to the moon, and damn near impossible to drive to Alpha Centauri
It vibes pretty well with the phrase "double-mythological hydra-chimeras" - maybe we should just redefine genomes -> gnomes? I like the idea of tiny lil gnomes in me, building proteins!
November 6, 2025 at 10:04 PM
It vibes pretty well with the phrase "double-mythological hydra-chimeras" - maybe we should just redefine genomes -> gnomes? I like the idea of tiny lil gnomes in me, building proteins!
Would you have any advice on how/what to plan for? I get the increasing sense that things are just about to crumble in an awful way, but I don't know what to do to prepare for that possibility (financially, community-wise, workwise, etc)
November 6, 2025 at 7:41 PM
Would you have any advice on how/what to plan for? I get the increasing sense that things are just about to crumble in an awful way, but I don't know what to do to prepare for that possibility (financially, community-wise, workwise, etc)
Reposted by ChunnyD
Here's the full preprint.
Feel free to write me if you want any additional analyses in the final version!
arxiv.org/abs/2510.25417
Feel free to write me if you want any additional analyses in the final version!
arxiv.org/abs/2510.25417
Shifts in U.S. Social Media Use, 2020-2024: Decline, Fragmentation, and Enduring Polarization
Using nationally representative data from the 2020 and 2024 American National Election Studies (ANES), this paper traces how the U.S. social media landscape has shifted across platforms, demographics,...
arxiv.org
October 30, 2025 at 8:09 AM
Here's the full preprint.
Feel free to write me if you want any additional analyses in the final version!
arxiv.org/abs/2510.25417
Feel free to write me if you want any additional analyses in the final version!
arxiv.org/abs/2510.25417
Reposted by ChunnyD
jasmi.news/p/ai-friends... This is very good, and close in some ways to the Fourcade and @kjhealy.co account of social media, under which it's co-constituted by users rather than being forced on them.
AI friends too cheap to meter
“Let me date my chatbot I’m almost 30 and doing well”
jasmi.news
October 27, 2025 at 3:28 PM
jasmi.news/p/ai-friends... This is very good, and close in some ways to the Fourcade and @kjhealy.co account of social media, under which it's co-constituted by users rather than being forced on them.
@jonbois.bsky.social is my favorite sports-scifi-stastician-documentarian, and this interview helps capture some of that. Thank you for teaching me how to look for stories everywhere, Jon. www.brightwalldarkroom.com/2025/10/17/d...
Dare to Be Stupid: An Interview with Jon Bois & Alex Rubenstein
In their (hi)stories of successful losers as well as all the winners who fail perfectly, Jon Bois and Alex Rubenstein find our most human shapes.
www.brightwalldarkroom.com
October 26, 2025 at 6:16 PM
@jonbois.bsky.social is my favorite sports-scifi-stastician-documentarian, and this interview helps capture some of that. Thank you for teaching me how to look for stories everywhere, Jon. www.brightwalldarkroom.com/2025/10/17/d...
1997 checking in here - even though wide swaths of the Internet were developed before i logged in the very first time, I have been seeing the same trends, and classic internet communities seem to have mostly disintegrated these days. Everything is more uniform, panicked.
October 25, 2025 at 6:42 PM
1997 checking in here - even though wide swaths of the Internet were developed before i logged in the very first time, I have been seeing the same trends, and classic internet communities seem to have mostly disintegrated these days. Everything is more uniform, panicked.
"You can only critically assess the output of an AI chatbot if you have the skills to do so, and you don’t develop these skills by using #AI." Thought-provoking reporting on AI in #Academia, featuring researchers from @archeougent.bsky.social
Belgian AI scientists are advocating *against* the use of AI in academia. “If independent thinking is no longer encouraged at university, where would it?” apache.be/2025/10/24/b...
Belgian AI scientists resist the use of AI in academia
Several AI scientists have published an open letter calling for a ban on AI use by students.
apache.be
October 25, 2025 at 6:39 PM
"You can only critically assess the output of an AI chatbot if you have the skills to do so, and you don’t develop these skills by using #AI." Thought-provoking reporting on AI in #Academia, featuring researchers from @archeougent.bsky.social
did you get a legal release form to copy it over??? Otherwise you might have just created a wormhole allowing the Musk to permeate through...
October 22, 2025 at 7:42 PM
did you get a legal release form to copy it over??? Otherwise you might have just created a wormhole allowing the Musk to permeate through...