Nicolai Friis

The third-party funding must flow. They who control the third-party funding, control the universe.

QuOI is happening?

A very nice cover image!

Over on LinkedIn the spirit of the season is spreading with a joyous round of pre-holiday bragging about publication metrics 🎄

Was an honor and pleasure to serve as handling editor for this paper, not just because it was a very nice piece of work, but also bc I enjoy good puns and pop- (or in that case, rock-)culture references (admittedly, also the bad ones), not sure if the authors noticed mine in the decision letter

Back in my day, we listened to teachers telling us about Franz Ferdinand in high school, in Austria. Kids these days.

You can, and absolutely should.

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

… the significance of our new work lies in presenting a clear path to efficiently distribute arbitrary GME states in future quantum networks.

The 1st main challenge is overcome: GME states are precisely & reliably generated in a (trapped-ion) quantum processor & mapped onto traveling photons. 8/8

Entanglement of Trapped-Ion Qubits Separated by 230 Meters Researchers have achieved long-distance entanglement between two calcium ions, each of which lies in a different building, showing that trapped ions could be used to create quantum networks.

We confirm this by testing purpose-designed GME witnesses based on fidelities to 8 different GHZ-type states.

In the future, the photons can be mapped onto remote matter-based qubits, e.g., as in doi.org/10.1103/Phys.... Besides being the 1st experimental verification of theoretical ideas ... 7/8

Specifically, three ions are stimulated to each produce a photon (a), with which they are pairwise entangled (b). Then suitable quantum gates and measurements are applied to the ions (c) to remotely prepare GME states of the distributed photons (d). 6/8

In their lab, they demonstrated the core functionalities of a factory node based on trapped ions by producing and verifying GHZ-type GME between three photons generated from the ions and sent to the end nodes, the latter for now represented by photon detectors in our setup. 5/8

Generation of multipartite photonic entanglement using a trapped-ion quantum processing node The ability to establish entanglement between the nodes of future quantum networks is essential for enabling a wide range of new applications in science and technology. A promising approach involves t...

In our new paper arxiv.org/abs/2510.15693, EntaQCT www.quitphysics.info/entaqct team member Ida Mishra and myself on the side of @tuwien.at had the pleasure of collaborating with the team of Ben Lanyon at the @uniinnsbruck.bsky.social 4/8

A proposal for realizing a light-matter interface to generate GME is a central matter-based “factory node” that can be programmed to efficiently distribute arbitrary photonic GME states to surrounding clusters of network nodes. 3/8

GME is a non-classical correlation between multiple nodes that is required to make full use of the potential advantages of such a quantum network.

While the quantum systems at the end nodes will likely have to be matter based, light signals are the only viable option for the distribution. 2/8

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.

Ich bin ja der Meinung, eine mit der Geschwindigkeit anwachsende "relativistische Masse" ist kein hilfreiches Modell, das ist nur nötig, wenn man darauf besteht, Impuls als eine scheinbare lineare Funktion "m" mal "v" der Geschwindigkeit und Masse anzuschreiben, was aber eben nur geht wenn m=m(v).

Quantum Quantum is an open-access peer-reviewed journal for quantum science and related fields. Quantum is non-profit and community-run: an effort by researchers and for researchers to make science more open ...

I am just going to leave this here quantum-journal.org/about/

Wait till you hear about Quantum's embargo and pre-print policy!

Few will recognize this as a quote from Al Cappuccino in "And Coffee for All"

I'm a glass-half-full kinda guy

Not sure what I would do without LinkedIn, where would I get my daily dose of people obnoxiously bragging, companies making hyped fantasy claims about imaginary quantum breakthroughs, and people congratulating each other on how long they have already not-yet quit their jobs

So (oder so ähnlich) entstehen übrigens auch viele andere interessante Forschungsprojekte. Die besten Ideen kommen halt oft nicht am Schreibtisch... allerdings kommen zugegebenermaßen zu später Stunde bei der Weihnachtsfeier auch nicht NUR tolle Ideen

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

Hier übrigens eine sehr gute Einordnung, was die "Antifa" ist - und was nicht

Von @nhoraczek.bsky.social

Promo video for the recent HSBC and IBM Quantum breakthrough in finance, if it was directed by Scott Aaronson.
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.

We understand why the effect occurs, the question we had was if we should and if so how we could take this effect into account via adapted masks

The actual story is unfortunately way less strange than what it initially sounds like: we were discussing measurement data that should ideally be arranged in a pattern of straight parallel lines, but the actual data came out banana-shaped, we were wondering if this could be amended by suitable masks

Wahrscheinlich denkt Fleischhacker, man hätte einen Antifa-Mitgliedsausweis gefunden bei der Person. Und Exxpress-Mann hält sich selbst vermutlich auch für politische Mitte ohne Vorurteile.