Sergey Frolov🇺🇦
@spinespresso.bsky.social
Quantum Computing boffin, Condensed Matter Physics, Reproducibility.
Professor of Experimental Physics, University of Pittsburgh
Blog: https://espressospin.org/
YouTube: https://www.youtube.com/@spinespresso
Lab: http://frolovlab.org/
Professor of Experimental Physics, University of Pittsburgh
Blog: https://espressospin.org/
YouTube: https://www.youtube.com/@spinespresso
Lab: http://frolovlab.org/
Pinned
Sergey Frolov🇺🇦
@spinespresso.bsky.social
· Feb 24
3 years from when russia invaded Ukraine. When the USA told the leader of the free world President Zelensky to leave, and he replied "I don't need a ride. I need ammunition".
This is the first slide of every talk I gave in the last 3 years. This thread is about (quantum) science in Ukraine. 🧵
This is the first slide of every talk I gave in the last 3 years. This thread is about (quantum) science in Ukraine. 🧵
Rejected from Nature, rejected from Science, they published in PNAS...
There's video of Don Lemon outside the protest stating explicitly: "I'm just chronicling. I'm not with the group." Bondi went to grand jury for an indictment after the courts declined to approve arrest warrant *twice.*
Legal experts explain here why this is so ugly:
newrepublic.com/article/2059...
Legal experts explain here why this is so ugly:
newrepublic.com/article/2059...
January 30, 2026 at 7:08 PM
Rejected from Nature, rejected from Science, they published in PNAS...
Big week for me with Pitt journalists! Here is an outstanding article by the student newspaper Pitt News, and writer Brynn Hanna, about faculty partnerships with Ukraine including our work to transfer used scientific equipment to Kharkiv 🇺🇦 🇺🇦🇺🇦
pittnews.com/article/2000...
pittnews.com/article/2000...
Pitt professors across disciplines collaborate with academics in Ukraine - The Pitt News
From donating surplus laboratory equipment to collaborating on research papers, Pitt professors are working with Ukrainian scholars in disciplines ranging from quantum physics to post-war reconstructi...
pittnews.com
January 30, 2026 at 3:00 PM
Big week for me with Pitt journalists! Here is an outstanding article by the student newspaper Pitt News, and writer Brynn Hanna, about faculty partnerships with Ukraine including our work to transfer used scientific equipment to Kharkiv 🇺🇦 🇺🇦🇺🇦
pittnews.com/article/2000...
pittnews.com/article/2000...
Excellent article from Pittwire, thoughtful, accessible, by Brandie Jefferson (not a uni press release!)
www.pittwire.pitt.edu/features-art...
www.pittwire.pitt.edu/features-art...
Physics isn’t immune to the replication crisis. Sergey Frolov sees a way forward.
A critic of what he says are unjustifiably bold claims in his field, the Pitt physicist advocates for more data sharing in a new paper in Science.
www.pittwire.pitt.edu
January 29, 2026 at 6:52 PM
Excellent article from Pittwire, thoughtful, accessible, by Brandie Jefferson (not a uni press release!)
www.pittwire.pitt.edu/features-art...
www.pittwire.pitt.edu/features-art...
Reposted by Sergey Frolov🇺🇦
I wrote this song on Saturday, recorded it yesterday and released it to you today in response to the state terror being visited on the city of Minneapolis. It’s dedicated to the people of Minneapolis, our innocent immigrant neighbors and in memory of Alex Pretti and Renee Good.
Stay free
Stay free
Bruce Springsteen - Streets Of Minneapolis (Official Audio)
YouTube video by Bruce Springsteen
youtu.be
January 28, 2026 at 5:02 PM
I wrote this song on Saturday, recorded it yesterday and released it to you today in response to the state terror being visited on the city of Minneapolis. It’s dedicated to the people of Minneapolis, our innocent immigrant neighbors and in memory of Alex Pretti and Renee Good.
Stay free
Stay free
Reposted by Sergey Frolov🇺🇦
Here is a temperature map (in celsius) of the USA today, during what is being called the "Big Freeze". Ukraine was colder than this basically every day from Jan 5-23. And thanks to the USA helping Putin, the country was starved of heat and power.
January 27, 2026 at 12:45 PM
Here is a temperature map (in celsius) of the USA today, during what is being called the "Big Freeze". Ukraine was colder than this basically every day from Jan 5-23. And thanks to the USA helping Putin, the country was starved of heat and power.
it's all explained in this book
January 26, 2026 at 6:01 PM
it's all explained in this book
Reposted by Sergey Frolov🇺🇦
Everyone in a while you come across a band that is great, with a fantastic name and just need to buy the shirt.
January 23, 2026 at 10:04 PM
Everyone in a while you come across a band that is great, with a fantastic name and just need to buy the shirt.
Enjoying the talk of Dr. Ivan Oransky @retractionwatch.com hosted by our friends at CMU @cmu.edu . What you don't see is the great turnout. Great that folks care and are paying attention.
January 23, 2026 at 3:15 PM
Enjoying the talk of Dr. Ivan Oransky @retractionwatch.com hosted by our friends at CMU @cmu.edu . What you don't see is the great turnout. Great that folks care and are paying attention.
Finally got all the Microsoft data I requested...
January 21, 2026 at 9:28 PM
Finally got all the Microsoft data I requested...
I think we need a new rule to keep the medals away from the laureates
It’s even more embarrassing than I imagined.
January 16, 2026 at 1:30 PM
I think we need a new rule to keep the medals away from the laureates
Even physicists need to avoid taking the bait
by Jelena Stajic, Senior Editor, Science
www.science.org/content/arti...
by Jelena Stajic, Senior Editor, Science
www.science.org/content/arti...
ScienceAdviser: Even physicists need to avoid taking the bait
Today in Science and science: Water just got weirder, a glimpse at Homo habilis’ body, and more
www.science.org
January 15, 2026 at 9:12 PM
Even physicists need to avoid taking the bait
by Jelena Stajic, Senior Editor, Science
www.science.org/content/arti...
by Jelena Stajic, Senior Editor, Science
www.science.org/content/arti...
Reposted by Sergey Frolov🇺🇦
The rarest of sights - a big glossy journal publishing negative replications! Yes, we had to bundle 4 replications into one article AND we had to wait 2 (!!) years in peer review, but here we are:
www.science.org/doi/10.1126/...
www.science.org/doi/10.1126/...
Data sharing helps avoid “smoking gun” claims of topological milestones
Manipulating the topology of electronic bands can realize new states of matter, with possible implications for information technology. A central question is how to tell whether a topological regime ha...
www.science.org
January 8, 2026 at 7:21 PM
The rarest of sights - a big glossy journal publishing negative replications! Yes, we had to bundle 4 replications into one article AND we had to wait 2 (!!) years in peer review, but here we are:
www.science.org/doi/10.1126/...
www.science.org/doi/10.1126/...
Come over I will give you a coffee if you wanted to publish in @nature.com or @science.org but decided not to
January 11, 2026 at 1:04 PM
Come over I will give you a coffee if you wanted to publish in @nature.com or @science.org but decided not to
My new favorite band smokingdataguns.band
Smoking Data Guns
smokingdataguns.band
January 10, 2026 at 4:46 PM
My new favorite band smokingdataguns.band
Reposted by Sergey Frolov🇺🇦
Negative and null results are so important!
The rarest of sights - a big glossy journal publishing negative replications! Yes, we had to bundle 4 replications into one article AND we had to wait 2 (!!) years in peer review, but here we are:
www.science.org/doi/10.1126/...
www.science.org/doi/10.1126/...
Data sharing helps avoid “smoking gun” claims of topological milestones
Manipulating the topology of electronic bands can realize new states of matter, with possible implications for information technology. A central question is how to tell whether a topological regime ha...
www.science.org
January 9, 2026 at 2:24 PM
Negative and null results are so important!
Reposted by Sergey Frolov🇺🇦
Replications and data sharing help make more precise claims in physics too! phys.org/news/2026-01...
Replication efforts suggest 'smoking gun' evidence isn't enough to prove quantum computing claims
A group of scientists, including Sergey Frolov, professor of physics at the University of Pittsburgh, and co-authors from Minnesota and Grenoble have undertaken several replication studies centered ar...
phys.org
January 8, 2026 at 9:49 PM
Replications and data sharing help make more precise claims in physics too! phys.org/news/2026-01...
Reposted by Sergey Frolov🇺🇦
Author's blog...
"All four experiments are cases of finetuning and data selection."
#Physics #MetaSci #OpenSci 🧪
"All four experiments are cases of finetuning and data selection."
#Physics #MetaSci #OpenSci 🧪
Too many guns are smoking
Is the smoking gun evidence sufficient to make a scientific claim?
open.substack.com
January 9, 2026 at 7:18 AM
Reposted by Sergey Frolov🇺🇦
Breakthrough in condensed matter physics? Think again!
"By sharing materials researchers invite the entire community to collaborate on their findings and strengthen and debug their conclusions."
By @spinespresso.bsky.social et al.
Paywall...
"By sharing materials researchers invite the entire community to collaborate on their findings and strengthen and debug their conclusions."
By @spinespresso.bsky.social et al.
Paywall...
Data sharing helps avoid “smoking gun” claims of topological milestones
Manipulating the topology of electronic bands can realize new states of matter, with possible implications for information technology. A central question is how to tell whether a topological regime ha...
www.science.org
January 9, 2026 at 7:18 AM
Breakthrough in condensed matter physics? Think again!
"By sharing materials researchers invite the entire community to collaborate on their findings and strengthen and debug their conclusions."
By @spinespresso.bsky.social et al.
Paywall...
"By sharing materials researchers invite the entire community to collaborate on their findings and strengthen and debug their conclusions."
By @spinespresso.bsky.social et al.
Paywall...
Reposted by Sergey Frolov🇺🇦
"the reliability of smoking gun–type claims can be greatly enhanced by releasing comprehensive datasets, discussing alternative scenarios, and disclosing the total volume of study."
The rarest of sights - a big glossy journal publishing negative replications! Yes, we had to bundle 4 replications into one article AND we had to wait 2 (!!) years in peer review, but here we are:
www.science.org/doi/10.1126/...
www.science.org/doi/10.1126/...
Data sharing helps avoid “smoking gun” claims of topological milestones
Manipulating the topology of electronic bands can realize new states of matter, with possible implications for information technology. A central question is how to tell whether a topological regime ha...
www.science.org
January 8, 2026 at 9:19 PM
"the reliability of smoking gun–type claims can be greatly enhanced by releasing comprehensive datasets, discussing alternative scenarios, and disclosing the total volume of study."
Reposted by Sergey Frolov🇺🇦
Kudos to Science – and of course Sergey and others like him who are holding their own fields accountable. That is how science progresses.
The rarest of sights - a big glossy journal publishing negative replications! Yes, we had to bundle 4 replications into one article AND we had to wait 2 (!!) years in peer review, but here we are:
www.science.org/doi/10.1126/...
www.science.org/doi/10.1126/...
Data sharing helps avoid “smoking gun” claims of topological milestones
Manipulating the topology of electronic bands can realize new states of matter, with possible implications for information technology. A central question is how to tell whether a topological regime ha...
www.science.org
January 8, 2026 at 8:54 PM
Kudos to Science – and of course Sergey and others like him who are holding their own fields accountable. That is how science progresses.
Reposted by Sergey Frolov🇺🇦
If publishing null results was a problem in my old field (physics beyond the Standard Model) there would have been, like, three papers in the past 30 years.
The rarest of sights - a big glossy journal publishing negative replications! Yes, we had to bundle 4 replications into one article AND we had to wait 2 (!!) years in peer review, but here we are:
www.science.org/doi/10.1126/...
www.science.org/doi/10.1126/...
Data sharing helps avoid “smoking gun” claims of topological milestones
Manipulating the topology of electronic bands can realize new states of matter, with possible implications for information technology. A central question is how to tell whether a topological regime ha...
www.science.org
January 8, 2026 at 8:16 PM
If publishing null results was a problem in my old field (physics beyond the Standard Model) there would have been, like, three papers in the past 30 years.
The rarest of sights - a big glossy journal publishing negative replications! Yes, we had to bundle 4 replications into one article AND we had to wait 2 (!!) years in peer review, but here we are:
www.science.org/doi/10.1126/...
www.science.org/doi/10.1126/...
Data sharing helps avoid “smoking gun” claims of topological milestones
Manipulating the topology of electronic bands can realize new states of matter, with possible implications for information technology. A central question is how to tell whether a topological regime ha...
www.science.org
January 8, 2026 at 7:21 PM
The rarest of sights - a big glossy journal publishing negative replications! Yes, we had to bundle 4 replications into one article AND we had to wait 2 (!!) years in peer review, but here we are:
www.science.org/doi/10.1126/...
www.science.org/doi/10.1126/...
Reposted by Sergey Frolov🇺🇦
This needs a push (like) to jump to a higher quantum state… #ITeachPhysics
December 30, 2025 at 1:31 PM
This needs a push (like) to jump to a higher quantum state… #ITeachPhysics
Reposted by Sergey Frolov🇺🇦
Semifinal, Match 2 of 2
b. Resolved and Unresolved
b. Resolved and Unresolved
December 30, 2025 at 12:09 AM
Semifinal, Match 2 of 2
b. Resolved and Unresolved
b. Resolved and Unresolved