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Michal Hejduk @flyingphysicist.bsky.social · 22h

Co v kvantové děláme, najdete na www.mff.cuni.cz/cs/kvantove-...

Reposted by Michal Hejduk

Matfyz @mff.unikarlova.cuni.cz · 23h

✨ Rok 2025 vyhlásilo UNESCO Mezinárodním rokem kvantové fyziky a kvantových technologií.
Na Matfyzu jsme to oslavili akcí Den s kvantovkou, která přiblížila tento svět veřejnosti.
Přečtěte si o kvantovce více v našem článku - odkaz v komentářích! ⚛️
#kvantovafyzika #matfyz #fyzika #denskvantovkou

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Michal Hejduk @flyingphysicist.bsky.social · 2d

It is nice when someone notices our work. 🫠 Research was carried out at @mff.unikarlova.cuni.cz @charlesuni.cuni.cz The preprint will be submitted in the next few days.

Quantum Zeitgeist Superposition @superposition.bsky.social · 7d

Roadmap To Planar Electron-Ion Point Paul Trap Enables Co-Trapped Systems For Computing And Control

Researchers have engineered a novel trap that confines both laser-cooled ions and electrons within the same space, paving the way for new hybrid quantum computing architectures and precision measurements.

quantumzeitgeist.com

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Michal Hejduk @flyingphysicist.bsky.social · 7d

Proč vlastně ti, kteří věří, že volby budou zmanipulované, chtějí jít volit? Vždyť to nemá cenu ne? 🤔

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Michal Hejduk @flyingphysicist.bsky.social · 20d

A proto škrtáme rozpočet na školství. Přece nenecháme lidi něco dělat proti druhé nejhorší oligarchii v Evropě. blisty.cz/art/119508-t...

Michal Hejduk @flyingphysicist.bsky.social · 20d

A proto škrtáme rozpočet na školství.

Michal Hejduk @flyingphysicist.bsky.social · 20d

5/5: Read the preprint here: arxiv.org/abs/2508.16407 We welcome your thoughts and feedback! Let's discuss and push the boundaries of science together. #Antimatter #Research #Innovation @unimainz.bsky.social @ucberkeleyofficial.bsky.social @charlesuni.cuni.cz @mff.unikarlova.cuni.cz

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Michal Hejduk @flyingphysicist.bsky.social · 20d

4/5: While we've reached the current design's limits, we're already developing next-generation traps in Mainz & Prague. Stay tuned for more updates—details about our patent are here: worldwide.espacenet.com/patent/searc.... #Science #ParticlePhysics

worldwide.espacenet.com

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Michal Hejduk @flyingphysicist.bsky.social · 20d

3/5: We've successfully trapped electrons (as stand-ins for positrons) in the electron-ion trap for periods sufficient for experimental purposes. This is a significant step towards our goal! #Research #Innovation

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Michal Hejduk @flyingphysicist.bsky.social · 20d

2/5: Our ultimate goal? To produce antimatter by recombining positrons & anti-protons in a compact lab setup. Imagine receiving antiprotons from CERN, transferring them to our trap containing positrons for recombination! #Antimatter #Science

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Michal Hejduk @flyingphysicist.bsky.social · 20d

1/5: 🌟 Thrilling news from our research group! We've just released a preprint on an electron-ion trap—a modified Paul trap designed to simultaneously confine ions and electrons. #ParticlePhysics #Innovation

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Michal Hejduk @flyingphysicist.bsky.social · 22d

Without the EU, it would have already been implemented in half of the countries without any discussion.

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Michal Hejduk @flyingphysicist.bsky.social · 22d

We need to break with the completely erroneous perception that it is every politician's right to say 🐂💩.

Proton @proton.me · 22d

"We need to break with the completely erroneous perception that it is everyone's civil liberty to communicate via encrypted messaging services" - Peter Hummelgaard
, 🇩🇰 Minister of Justice

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Michal Hejduk @flyingphysicist.bsky.social · 23d

Od počátku svého studia jsem si učinil zásadou, že kdekoliv poznám mínění správnější, ihned upustím od svého méně správného a pokorně a radostně přijmu názor odůvodněný lépe, věda, že to, co víme, je zcela nepatrným zlomkem toho, co nevíme. -- Jan Hus 1410

Reposted by Michal Hejduk

Matfyz @mff.unikarlova.cuni.cz · 28d

🪐 Astronomové z @univ-amu.fr a UK zjistili, odkud pochází nejprimitivnější materiál ve sluneční soustavě.
🔭 Uhlíkaté meteority CM a CI se do vnitřní části soustavy dostaly z oblasti za Saturnem, Uranem a Neptunem – v různých časech, miliony let po vzniku Slunce.
⬇️ Celý článek v komentářích!

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Michal Hejduk @flyingphysicist.bsky.social · Sep 9

5/5: A huge shoutout to collaborators: Vineet Kumar, Niklas V. Lausti,, Ivan Hudák, David Motyčka and Adam Jelínek from @mff.unikarlova.cuni.cz, and Jiří Hajnyš from Technical University in Ostrava. Your contributions made this possible! 🙏👥 #TeamWork #ScienceCollaboration

Michal Hejduk @flyingphysicist.bsky.social · Sep 9

4/5: We investigated pressure variations over a month and found that our 3D-printed components are reliable for long-term experiments. This opens doors for future studies in microwave detection and ion-electron interactions. ⏳📊

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Michal Hejduk @flyingphysicist.bsky.social · Sep 9

3/5: The atomic oven performs exceptionally well in UHV environments, with minimal outgassing. This is crucial for maintaining the stability required for electron-ion trapping experiments. 🔬🌡

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Michal Hejduk @flyingphysicist.bsky.social · Sep 9

2/5: Our microwave-driven electron trap integrates seamlessly into a coaxial cavity, enabling stable, high-amplitude electric field oscillations. Perfect for simultaneous ion trapping! 🌐🔍 arxiv.org/abs/2509.06537

3D-printed components for electron-ion trapping: Tests of functionality and ultra-high vacuum compatibility

We demonstrate the ultra-high vacuum compatibility of a microwave-driven electron trap and an atomic oven (for atomic beam generation) fabricated through 3D printing via Laser Powder Bed Fusion (L-PBF...

arxiv.org

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Michal Hejduk @flyingphysicist.bsky.social · Sep 9

1/5: 📢 Exciting news! Our latest preprint is now available on arXiv! We demonstrate the ultra-high vacuum compatibility of 3D-printed electron traps and atomic ovens using Laser Powder Bed Fusion (L-PBF). #3DPrinting #UHV #QuantumResearch

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Reposted by Michal Hejduk

Nature @nature.com · Sep 8

A study examines the emergence of a group that sparked a fundamental change in lifestyle in Central and Eastern Europe in the sixth century

go.nature.com/3HRnvKL

Ancient DNA clarifies the early history of the Slavs

A study examines the emergence of a group that sparked a fundamental change in lifestyle in Central and Eastern Europe in the sixth century.

go.nature.com

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Michal Hejduk @flyingphysicist.bsky.social · Aug 22

Tak jsem zhlédl Velký vlastenecký výlet a přemýšlel jsem, kolik lidí v sále se pohoršuje nad morálním relativismem protagonistů a zároveň tleská konání izraelské armády v Gaze...

Michal Hejduk @flyingphysicist.bsky.social · Aug 20

Everyone fears AI writing fake science… but what about AI reviewing papers? Hallucinations, no context, lies—why isn’t this risk discussed more? #academia

Michal Hejduk @flyingphysicist.bsky.social · Aug 11

#Reviewer2 seems not to have properly read our manuscript. Their review included incorrect claims about its content, which contributed to its rejection. I'm torn between raising this with the editor or moving on and submitting elsewhere. Has anyone faced a similar dilemma? #academia #peerreview