Nicolai Friis
@improbabilitydrive.bsky.social
he/him, dad, quantum physicist @ TU Wien & editor @ Quantum journal, eye-roll and die-roll enthusiast 📎
Social(-media) experiment: I posted the same blurb on our new research paper on Bluesky and on LinkedIn. Apparently many more people from the quantum bubble on LinkedIn (~5 times as many reactions), but actual responses there mostly nonsense and people trying to plug their business
October 27, 2025 at 9:10 AM
Social(-media) experiment: I posted the same blurb on our new research paper on Bluesky and on LinkedIn. Apparently many more people from the quantum bubble on LinkedIn (~5 times as many reactions), but actual responses there mostly nonsense and people trying to plug their business
Quantum networks might one day enable more secure options for communication and distributed computation and are therefore currently a hot research topic, one which presents many challenges: One is the on-demand distribution of quantum systems that feature genuine multipartite entanglement (GME). 1/8
October 24, 2025 at 7:40 AM
Quantum networks might one day enable more secure options for communication and distributed computation and are therefore currently a hot research topic, one which presents many challenges: One is the on-demand distribution of quantum systems that feature genuine multipartite entanglement (GME). 1/8
Is it just me that finds it weird how ingrained it is in science that research groups identify as "The PI's-last-name group" as if their research & research interests were entirely determined by the PI? To me this feels unnecessarily adhering to authority and fostering cults centered around PIs.
October 16, 2025 at 8:52 AM
Is it just me that finds it weird how ingrained it is in science that research groups identify as "The PI's-last-name group" as if their research & research interests were entirely determined by the PI? To me this feels unnecessarily adhering to authority and fostering cults centered around PIs.
Reposted by Nicolai Friis
Hier übrigens eine sehr gute Einordnung, was die "Antifa" ist - und was nicht
Von @nhoraczek.bsky.social
Von @nhoraczek.bsky.social
Blauland: Die „Antifa" verbieten – wer hat’s erfunden?
In den USA gilt „Antifa" seit kurzem als terroristische Organisation. Die FPÖ fordert seit Jahren, was US-Präsident Donald Trump nun umsetzt
www.falter.at
September 28, 2025 at 8:52 AM
Hier übrigens eine sehr gute Einordnung, was die "Antifa" ist - und was nicht
Von @nhoraczek.bsky.social
Von @nhoraczek.bsky.social
Reposted by Nicolai Friis
Promo video for the recent HSBC and IBM Quantum breakthrough in finance, if it was directed by Scott Aaronson.
scottaaronson.blog?p=9170
scottaaronson.blog?p=9170
September 27, 2025 at 2:14 PM
Promo video for the recent HSBC and IBM Quantum breakthrough in finance, if it was directed by Scott Aaronson.
scottaaronson.blog?p=9170
scottaaronson.blog?p=9170
You want to submit/have submitted your paper to Quantum and would like to speed the editorial process along? Suggest reviewers! You know the field and who has the expertise. But keep in mind who is likely to have time. Famous senior profs are not likely to reply to review requests.
September 26, 2025 at 12:42 PM
You want to submit/have submitted your paper to Quantum and would like to speed the editorial process along? Suggest reviewers! You know the field and who has the expertise. But keep in mind who is likely to have time. Famous senior profs are not likely to reply to review requests.
Serious conclusion of yesterday's 1-hour research meeting: we might need anti-banana masks
September 9, 2025 at 8:10 AM
Serious conclusion of yesterday's 1-hour research meeting: we might need anti-banana masks
I might have to reference this excellent blog post in my next QC class...
Been awhile since I wrote a blog post.
Anyways... why haven't quantum computers factored 21 yet?
algassert.com/post/2500
Anyways... why haven't quantum computers factored 21 yet?
algassert.com/post/2500
Why haven't quantum computers factored 21 yet?
Craig Gidney's computer science blog
algassert.com
September 2, 2025 at 6:00 PM
I might have to reference this excellent blog post in my next QC class...
He's not wrong
I made a quantum foundations alignment chart — go forth and fight about it!
(also, "good" is not an endorsement)
(also, "good" is not an endorsement)
September 2, 2025 at 5:41 PM
He's not wrong
Glad someone took the time to debunk the (obviously nonsensical) claim that Bell inequalities could be violated w/o entanglement. It is astonishing (to say the least) that this claim was made by experienced authors & that it passed peer review in the first place, does not reflect well on the journal
Bell Inequality Violations Without Entanglement? It's Just Postselection
Recently Wang et al. have reported a violation of a Bell inequality without entanglement [arXiv:2507.07756]. We show that their result is an artifact of postselection. It is well known that postselect...
arxiv.org
August 20, 2025 at 9:22 AM
Glad someone took the time to debunk the (obviously nonsensical) claim that Bell inequalities could be violated w/o entanglement. It is astonishing (to say the least) that this claim was made by experienced authors & that it passed peer review in the first place, does not reflect well on the journal
Reposted by Nicolai Friis
"our results indicate that academia pays a price by focusing attention and resources on superstars"
Nice to see this supported by data analysis, now.
H/T: @cxdig.bsky.social
www.nature.com/articles/s41...
Nice to see this supported by data analysis, now.
H/T: @cxdig.bsky.social
www.nature.com/articles/s41...
The innovation trade-off: how following superstars shapes academic novelty - Humanities and Social Sciences Communications
Humanities and Social Sciences Communications - The innovation trade-off: how following superstars shapes academic novelty
www.nature.com
July 19, 2025 at 12:05 PM
"our results indicate that academia pays a price by focusing attention and resources on superstars"
Nice to see this supported by data analysis, now.
H/T: @cxdig.bsky.social
www.nature.com/articles/s41...
Nice to see this supported by data analysis, now.
H/T: @cxdig.bsky.social
www.nature.com/articles/s41...
Reposted by Nicolai Friis
July 20, 2025 at 6:27 PM
The calm before the storm, Benasque Quantum Information 2025 @ccbpp.bsky.social
June 16, 2025 at 1:18 PM
The calm before the storm, Benasque Quantum Information 2025 @ccbpp.bsky.social
Given that I recently saw an advert like that, I wonder, are students really interested in starting a PhD under the premise that they work in one country while the supervisor quite obviously works in another? Is the supervisor going back&forth? At least my students want to meet at least once a week
May 22, 2025 at 7:22 AM
Given that I recently saw an advert like that, I wonder, are students really interested in starting a PhD under the premise that they work in one country while the supervisor quite obviously works in another? Is the supervisor going back&forth? At least my students want to meet at least once a week
Reposted by Nicolai Friis
Christoph Sieber gibt Geschichtsnachhilfe 👇
May 11, 2025 at 10:27 AM
Christoph Sieber gibt Geschichtsnachhilfe 👇
Dass die neue deutsche Bundesministerin für Wirtschaft "Reiche" heißt, ist mindestens so lustig, wie der Umstand, dass der ehemalige österreichische Bundesminister für Gesundheit "Rauch" heißt.
May 7, 2025 at 12:59 PM
Dass die neue deutsche Bundesministerin für Wirtschaft "Reiche" heißt, ist mindestens so lustig, wie der Umstand, dass der ehemalige österreichische Bundesminister für Gesundheit "Rauch" heißt.
After many years in academia I might have become a bit cynical about certain structural problems and I have found myself disappointed by colleagues and their behaviour on many occasions, but today a colleague managed to show me that decency, honesty, and integrity are not dead yet in academia
May 6, 2025 at 7:50 PM
After many years in academia I might have become a bit cynical about certain structural problems and I have found myself disappointed by colleagues and their behaviour on many occasions, but today a colleague managed to show me that decency, honesty, and integrity are not dead yet in academia
Ziemlich erschütternd, was es 2025 noch für Männerbünde mit elitären Fantasien gibt. Gibt es eine öffentlich zugängliche Liste der Mitglieder?
Habt ihr das gelesen? Das ist so unfassbar.
Wer da noch Mitglied ist, zeigt eh auch gleich, welch Geistes Kind er ist.
www.derstandard.at/story/300000...
Wer da noch Mitglied ist, zeigt eh auch gleich, welch Geistes Kind er ist.
www.derstandard.at/story/300000...
Warum ein elitäres Techniker-Netzwerk Frauen immer noch ausschließt
Im "Techniker Cercle" sind weibliche Mitglieder nicht zugelassen. Jährlich spendet der Männerbund mehrere Hunderttausend Euro an die TU Wien
www.derstandard.at
May 5, 2025 at 8:05 PM
Ziemlich erschütternd, was es 2025 noch für Männerbünde mit elitären Fantasien gibt. Gibt es eine öffentlich zugängliche Liste der Mitglieder?
Genuine multipartite entanglement—GME for short—is a type of entanglement that—much like a certain Lovecraftian cosmic entity that took a break from napping at the House of R'lyeh to make a guest appearance in our paper arxiv.org/abs/2504.21076 —is even weirder than regular entanglement: GME … (1/6)
May 1, 2025 at 1:50 PM
Genuine multipartite entanglement—GME for short—is a type of entanglement that—much like a certain Lovecraftian cosmic entity that took a break from napping at the House of R'lyeh to make a guest appearance in our paper arxiv.org/abs/2504.21076 —is even weirder than regular entanglement: GME … (1/6)
Am very happy to see this paper by the power duo Klára and Olga out in Quantum: We set out to study the activation of genuine multipartite entanglement (GME) in the continuous-variable setting. On the way, we discovered a treasure trove of results... (1/3)
Multi-copy activation of genuine multipartite entanglement in continuous-variable systems
Klára Baksová, Olga Leskovjanová, Ladislav Mišta Jr., Elizabeth Agudelo, and Nicolai Friis,
Quantum 9, 1699 (2025).
Multi-copy activation of genuine multipartite entanglement (GME) is a phenomenon whe...
quantum-journal.org
April 10, 2025 at 3:10 PM
Am very happy to see this paper by the power duo Klára and Olga out in Quantum: We set out to study the activation of genuine multipartite entanglement (GME) in the continuous-variable setting. On the way, we discovered a treasure trove of results... (1/3)
Entanglement is a form of correlation that is "stronger" than classical correlations in the sense that correlations are equally strong in infinitely many pairs of bases. But how strong do correlations have to be in any arbitrary pair of bases to conclude that the system is entangled? (1/3)
March 19, 2025 at 11:16 AM
Entanglement is a form of correlation that is "stronger" than classical correlations in the sense that correlations are equally strong in infinitely many pairs of bases. But how strong do correlations have to be in any arbitrary pair of bases to conclude that the system is entangled? (1/3)
Pleasure was all ours, Phil, pleasure was all ours!
Our recent work using ideas from thermodynamic geometry to derive optimal cooling protocols in quantum collision models of finite depth! I very much enjoyed working with my new collaborators Patryk & Marti, as well as all the old @quitphysics.info crew 💫
Efficiently Cooling Quantum Systems with Finite Resources: Insights from Thermodynamic Geometry
Landauer's limit on heat dissipation during information erasure is critical as devices shrink, requiring optimal pure-state preparation to minimize errors. However, Nernst's third law states this dema...
journals.aps.org
February 20, 2025 at 2:14 PM
Pleasure was all ours, Phil, pleasure was all ours!
Maybe it's just me, but I find it difficult to take an "international" conference seriously if some of the organizers and/or members of the scientific committee are also "invited" speakers, and, independently of that, if all of these three groups exclusively consist of men.
February 11, 2025 at 8:09 AM
Maybe it's just me, but I find it difficult to take an "international" conference seriously if some of the organizers and/or members of the scientific committee are also "invited" speakers, and, independently of that, if all of these three groups exclusively consist of men.
Not that this was really unclear.
January 22, 2025 at 9:23 AM
Not that this was really unclear.
My team knows me too well 🖤🐙
December 18, 2024 at 9:05 AM
My team knows me too well 🖤🐙