Volker K.
@quantenvogel.bsky.social
PhD student (he/him) in #quantum theory at the ISTA (Vienna)
• Atomic & molecular physics • Non-equilibrium topological phases • Floquet engineering • Dynamical systems • #julialang • #Philosophy of Science • #firstgen • #chess & #go • lives in #wien
• Atomic & molecular physics • Non-equilibrium topological phases • Floquet engineering • Dynamical systems • #julialang • #Philosophy of Science • #firstgen • #chess & #go • lives in #wien
Pinned
Volker K.
@quantenvogel.bsky.social
· Nov 20
Topological Charges of Periodically Kicked Molecules
We show that the simplest of existing molecules---closed-shell diatomics not interacting with one another---host topological charges when driven by periodic far-off-resonant laser pulses. A periodical...
journals.aps.org
Last year we published the main project of my PhD that combines topological physics with the periodically-driven molecules. It is somewhat different from many works before because we look at synthetic dimensions: lattices of (3D) angular momentum. doi.org/10.1103/Phys... #quantum #physics →
Reposted by Volker K.
Today in
As the World Burns
A reversal of Antarctic ice formation.
As the World Burns
A reversal of Antarctic ice formation.
Is this bad www.sciencedaily.com/releases/202...
Antarctica’s ocean flip: Satellites catch sudden salt surge melting ice from below
A massive and surprising change is unfolding around Antarctica. Scientists have discovered that the Southern Ocean is getting saltier, and sea ice is melting at record speed, enough to match the size ...
www.sciencedaily.com
July 6, 2025 at 9:08 PM
Today in
As the World Burns
A reversal of Antarctic ice formation.
As the World Burns
A reversal of Antarctic ice formation.
Reposted by Volker K.
Quantum state tomography for states that vary with parameters such as time or control settings attains new capabilities in characterization of evolving quantum states.
go.aps.org/3SAelEa
go.aps.org/3SAelEa
June 8, 2025 at 5:41 AM
Quantum state tomography for states that vary with parameters such as time or control settings attains new capabilities in characterization of evolving quantum states.
go.aps.org/3SAelEa
go.aps.org/3SAelEa
Reposted by Volker K.
"XYZ ruby code: Making a case for a three-colored graphical calculus for quantum error correction in spacetime"
journals.aps.org/prxquantum/a...
This work presents a new highly attractive #Floquetcode in #quantumerrorcorrection and introduces - yet another - useful graphical calculus.
journals.aps.org/prxquantum/a...
This work presents a new highly attractive #Floquetcode in #quantumerrorcorrection and introduces - yet another - useful graphical calculus.
March 28, 2025 at 4:29 PM
"XYZ ruby code: Making a case for a three-colored graphical calculus for quantum error correction in spacetime"
journals.aps.org/prxquantum/a...
This work presents a new highly attractive #Floquetcode in #quantumerrorcorrection and introduces - yet another - useful graphical calculus.
journals.aps.org/prxquantum/a...
This work presents a new highly attractive #Floquetcode in #quantumerrorcorrection and introduces - yet another - useful graphical calculus.
Taken from this fantastic presentation www.slideshare.net/slideshow/th... by @zacklabe.com
March 3, 2025 at 11:24 PM
Taken from this fantastic presentation www.slideshare.net/slideshow/th... by @zacklabe.com
Reposted by Volker K.
I'd like to share another science presentation, which I gave to a class visiting GFDL almost exactly 24 hours before being fired in the NOAA mass layoffs.
Unfortunately, the animations do not work in this format though: www.slideshare.net/slideshow/th.... This one has more of an Arctic focus.
Unfortunately, the animations do not work in this format though: www.slideshare.net/slideshow/th.... This one has more of an Arctic focus.
The Arctic through the lens of data visualization
The Arctic through the lens of data visualization - Download as a PDF or view online for free
www.slideshare.net
March 3, 2025 at 11:04 PM
I'd like to share another science presentation, which I gave to a class visiting GFDL almost exactly 24 hours before being fired in the NOAA mass layoffs.
Unfortunately, the animations do not work in this format though: www.slideshare.net/slideshow/th.... This one has more of an Arctic focus.
Unfortunately, the animations do not work in this format though: www.slideshare.net/slideshow/th.... This one has more of an Arctic focus.
Reposted by Volker K.
🔬 Object placement is a fundamental skill in chemistry labs—whether it's hanging a beaker on a rack 🧪 or inserting a vial with precision 🎯. But how can we enable robots to place different objects robustly and generalize across diverse tasks? [1/5]
March 3, 2025 at 8:41 PM
🔬 Object placement is a fundamental skill in chemistry labs—whether it's hanging a beaker on a rack 🧪 or inserting a vial with precision 🎯. But how can we enable robots to place different objects robustly and generalize across diverse tasks? [1/5]
Reposted by Volker K.
The neoliberal dream of fossil fuel billionaire Charles Koch was always the destruction of US democracy and the elimination of government (except for its repressive organs police, courts, prisons, military ofc), and now he has won.
What now? A 🧵.
1/
t.co/FKxxmLyfce
What now? A 🧵.
1/
t.co/FKxxmLyfce
February 8, 2025 at 10:38 AM
The neoliberal dream of fossil fuel billionaire Charles Koch was always the destruction of US democracy and the elimination of government (except for its repressive organs police, courts, prisons, military ofc), and now he has won.
What now? A 🧵.
1/
t.co/FKxxmLyfce
What now? A 🧵.
1/
t.co/FKxxmLyfce
Reposted by Volker K.
Ukraine is Europe!
We stand by Ukraine.
We will step up our support to Ukraine so that they can continue to fight back the agressor.
Today, it became clear that the free world needs a new leader. It’s up to us, Europeans, to take this challenge.
We stand by Ukraine.
We will step up our support to Ukraine so that they can continue to fight back the agressor.
Today, it became clear that the free world needs a new leader. It’s up to us, Europeans, to take this challenge.
February 28, 2025 at 8:22 PM
Ukraine is Europe!
We stand by Ukraine.
We will step up our support to Ukraine so that they can continue to fight back the agressor.
Today, it became clear that the free world needs a new leader. It’s up to us, Europeans, to take this challenge.
We stand by Ukraine.
We will step up our support to Ukraine so that they can continue to fight back the agressor.
Today, it became clear that the free world needs a new leader. It’s up to us, Europeans, to take this challenge.
Reposted by Volker K.
I grew up watching the NOAA fleet come in and out of port. What a wonder they are: big radar balls and antennae up top, cranes and winches on the back for instruments and submersibles. They inspired and gave me such pride in country and science.
Solidarity and love for all my NOAA friends today. 💙
Solidarity and love for all my NOAA friends today. 💙
February 27, 2025 at 10:36 PM
I grew up watching the NOAA fleet come in and out of port. What a wonder they are: big radar balls and antennae up top, cranes and winches on the back for instruments and submersibles. They inspired and gave me such pride in country and science.
Solidarity and love for all my NOAA friends today. 💙
Solidarity and love for all my NOAA friends today. 💙
Reposted by Volker K.
I think it would be a good time to reinstantiate the mirror network for the # arXiv. It’s an essential piece of the global research community in math, physics, computer-science and adjacent fields. Under the current circumstances it should not only be hosted in the US.
#quantum #math #physics #cs
#quantum #math #physics #cs
February 15, 2025 at 10:38 PM
Reposted by Volker K.
We are calling for a nationwide and international boycott of all Elon Musk-related products and services. Sell your Tesla shares, avoid buying Tesla vehicles, cancel Starlink, and delete your X accounts.
February 14, 2025 at 3:32 AM
We are calling for a nationwide and international boycott of all Elon Musk-related products and services. Sell your Tesla shares, avoid buying Tesla vehicles, cancel Starlink, and delete your X accounts.
Reposted by Volker K.
aaaaaaand the podcast with @ramiismail.com is online!!
..maybe it escalated a bit... (2 hours!!!!)
Hope you enjoy it.. super inspiring & interesting
youtu.be/qPFTzP2E-AE
#gamedev #indiedev
..maybe it escalated a bit... (2 hours!!!!)
Hope you enjoy it.. super inspiring & interesting
youtu.be/qPFTzP2E-AE
#gamedev #indiedev
Rami Ismail – From Modding to Indie Dev Icon, Nuclear Throne, PressKit & The Future of Indie Games
YouTube video by Johanna Pirker
youtu.be
February 7, 2025 at 7:18 PM
aaaaaaand the podcast with @ramiismail.com is online!!
..maybe it escalated a bit... (2 hours!!!!)
Hope you enjoy it.. super inspiring & interesting
youtu.be/qPFTzP2E-AE
#gamedev #indiedev
..maybe it escalated a bit... (2 hours!!!!)
Hope you enjoy it.. super inspiring & interesting
youtu.be/qPFTzP2E-AE
#gamedev #indiedev
Reposted by Volker K.
If you’re using Julia in chemistry or materials science, we encourage you to submit a proposal to the Computational Chemistry and Materials Science Minisymposium at JuliaCon 2025 in Pittsburgh, PA, from July 21–26. @julialang.org @juliacon.bsky.social
discourse.julialang.org/t/computatio...
discourse.julialang.org/t/computatio...
Computational Chemistry and Materials Science Minisymposium: Call For Proposals
If you’re using Julia in chemistry or materials science (at all , whether or not it specifically uses JuliaMolSim ecosystem tools!), we encourage you to submit a proposal to the Computational Chemistr...
discourse.julialang.org
February 4, 2025 at 2:34 PM
If you’re using Julia in chemistry or materials science, we encourage you to submit a proposal to the Computational Chemistry and Materials Science Minisymposium at JuliaCon 2025 in Pittsburgh, PA, from July 21–26. @julialang.org @juliacon.bsky.social
discourse.julialang.org/t/computatio...
discourse.julialang.org/t/computatio...
Reposted by Volker K.
You think Jacobian and Hessian matrices are prohibitively expensive to compute on your problem? Our latest preprint with @gdalle.bsky.social might change your mind!
arxiv.org/abs/2501.17737
🧵1/8
arxiv.org/abs/2501.17737
🧵1/8
January 30, 2025 at 2:32 PM
You think Jacobian and Hessian matrices are prohibitively expensive to compute on your problem? Our latest preprint with @gdalle.bsky.social might change your mind!
arxiv.org/abs/2501.17737
🧵1/8
arxiv.org/abs/2501.17737
🧵1/8
Reposted by Volker K.
BlueSky has a chance, if we can keep the bots off the platform. That won't be easy.
January 24, 2025 at 1:00 AM
BlueSky has a chance, if we can keep the bots off the platform. That won't be easy.
Reposted by Volker K.
I recently spoke at Ethereum Devcon about PopVax (@popvax.com)'s work developing novel mRNA vaccines to save 1 million lives each year, as part of a series of talks organized by Vitalik Buterin (@vitalik.ca) around his d/acc vision – defensive, differential, and decentralized accelerationism. (1/4)
December 23, 2024 at 7:50 AM
I recently spoke at Ethereum Devcon about PopVax (@popvax.com)'s work developing novel mRNA vaccines to save 1 million lives each year, as part of a series of talks organized by Vitalik Buterin (@vitalik.ca) around his d/acc vision – defensive, differential, and decentralized accelerationism. (1/4)
Reposted by Volker K.
On the risks of politician coins:
January 24, 2025 at 1:50 AM
On the risks of politician coins:
Reposted by Volker K.
Perhaps obvious, but what gives ammo to the anti-sciebtists among other things is our own failure to fix the systemic issues within the science organization, proliferation of unreliable results and flawed incentives, lazy editors unscrupulous institutions and all
I get why one might want to applaud this, but let’s peep that funding statement. George Tidmarsh. What kind of stuff does he fund?
January 3, 2025 at 3:53 PM
Perhaps obvious, but what gives ammo to the anti-sciebtists among other things is our own failure to fix the systemic issues within the science organization, proliferation of unreliable results and flawed incentives, lazy editors unscrupulous institutions and all
Reposted by Volker K.
A little quantum discussion to start off the year.
I was recently asked what is so revolutionary about Google's Willow chip. In short my answer was "nothing really, it's more of an impressive but expected evolution than a revolution.".
Now I'm curious, do people in the community agree?
I was recently asked what is so revolutionary about Google's Willow chip. In short my answer was "nothing really, it's more of an impressive but expected evolution than a revolution.".
Now I'm curious, do people in the community agree?
January 6, 2025 at 3:12 PM
A little quantum discussion to start off the year.
I was recently asked what is so revolutionary about Google's Willow chip. In short my answer was "nothing really, it's more of an impressive but expected evolution than a revolution.".
Now I'm curious, do people in the community agree?
I was recently asked what is so revolutionary about Google's Willow chip. In short my answer was "nothing really, it's more of an impressive but expected evolution than a revolution.".
Now I'm curious, do people in the community agree?
Reposted by Volker K.
1/n Some time ago my colleague, excellent cook, and friend Ivan told me: "Cacio e pepe is the recipe that I screw up more often. Let's make a project studying systematically the physics of that sauce".
Prepare to get cheesy, I'm glad to share the Cacio e paper preprint:
arxiv.org/abs/2501.00536
Prepare to get cheesy, I'm glad to share the Cacio e paper preprint:
arxiv.org/abs/2501.00536
January 4, 2025 at 9:34 AM
1/n Some time ago my colleague, excellent cook, and friend Ivan told me: "Cacio e pepe is the recipe that I screw up more often. Let's make a project studying systematically the physics of that sauce".
Prepare to get cheesy, I'm glad to share the Cacio e paper preprint:
arxiv.org/abs/2501.00536
Prepare to get cheesy, I'm glad to share the Cacio e paper preprint:
arxiv.org/abs/2501.00536
Reposted by Volker K.
I'm a huge fan of #Quarto, a (relatively) new technical publishing system. I've written a #julialang package, `DocumenterQuarto`, which automatically generates a Quarto project (e.g. website) with any Julia package's documentation!
GitHub - cadojo/DocumenterQuarto.jl: Build documentation for your Julia package with Quarto!
Build documentation for your Julia package with Quarto! - cadojo/DocumenterQuarto.jl
github.com
January 4, 2025 at 4:40 AM
I'm a huge fan of #Quarto, a (relatively) new technical publishing system. I've written a #julialang package, `DocumenterQuarto`, which automatically generates a Quarto project (e.g. website) with any Julia package's documentation!
Reposted by Volker K.
January 2, 2025 at 9:36 PM