Risto Paatelainen

Theoretical physicist studying QCD #perturbativeQCD #loopsandlegs Academy Research Fellow @SuomenAkatemia @HIPhysics @HelsinkiUni

[Aleksi Vuorinen @arjvuori]

Attention all neutron-star enthusiasts: at least one five- and one 2+1-year postdoctoral position in perturbative (dense) QCD and equation-of-state inference now available in Helsinki! https://t.co/IhUHSPHyUE 🌟

More info from @RPaatelainen and myself!

[Risto Paatelainen @RPaatelainen]

This work opens the door to precise perturbative predictions of the phase structure in a broad class of beyond‑the‑Standard‑Model scenarios - including those featuring strong first‑order transitions relevant for gravitational‑wave signals, where high‑T approximations break down.

[Risto Paatelainen @RPaatelainen]

🥁 I’m excited to share our new paper on arXiv:

https://t.co/o6UBeGd50n

Huge thanks to my brilliant PhD students Pablo Navarrete & @KaapoSeppanen, my collaborator Tuomas Tenkanen, and to @SuomenAkatemia for their support.

[Risto Paatelainen @RPaatelainen]

🔎In it, we introduce a novel framework for perturbatively computing equilibrium thermodynamic properties of cosmological phase transitions to high loop orders, avoiding traditional high‑temperature approximations.

[Physical Review Letters @PhysRevLett]

A new theoretical framework simplifies the four-loop Feynman diagrams for dense QCD to few infrared-finite integrals, which brings the higher-order calculation of the pressure inside cold and dense quark matter within reach https://t.co/eu1UKSukLv #OpenAccess

[Risto Paatelainen @RPaatelainen]

https://t.co/CkosB1THF7 🥳

[Aleksi Vuorinen @arjvuori]

And now out in PRL as an editors' suggestion! 🥳 https://t.co/sDlEffOJJI

A fun project, where @RPaatelainen and our awesome students did all the heavy 🏋️‍♂️

[Aleksi Vuorinen @arjvuori]

Almost two years in the making, this was not an easy nut to crack - but four fantastic students rose up to the challenge! 🤩 A companion paper with a likely three-digit page count should be following at some point... 😅

[Risto Paatelainen @RPaatelainen]

A new paper is out! 🚀 Check it out here: https://t.co/UVvVhjZCSI. Proud to have worked on this with my four PhD students and @arjvuori. Huge thanks to @SuomenAkatemia for the support!

[Risto Paatelainen @RPaatelainen]

So proud of my outstanding student, Mikko Seppälä 🥳
https://t.co/BfGvcbi3iC

[Risto Paatelainen @RPaatelainen]

@ArankoSessi @aalto Congratulations 🍾

[Aleksi Vuorinen @arjvuori]

@niko_jokela haastattelu Hesarissa, mukana myös @RPaatelainen 🤩

[Faculty of Science, University of Helsinki @KumpulaScience]

Kun neutronitähdet törmäävät, voi hetkeksi syntyä kvarkkiainetta. 🌟
Tutkimuksessa selvitettiin, kuinka "tahmaisesti" tuo kvarkkiaine puristuu kokoon ja taas laajenee.
@helsinkiuni @arjvuori @niko_jokela @RPaatelainen @KurkelaAleksi
https://t.co/oqdSxo4Tcw

[Risto Paatelainen @RPaatelainen]

https://t.co/Z91Fdahwnl

[Risto Paatelainen @RPaatelainen]

Our recent work on computing new estimates for the bulk viscosity of strongly coupled quark matter has been published in PRL 🤩 Thx to @SuomenAkatemia

https://t.co/Zi0xegIxT0

[Konrad Tywoniuk @ktywoniuk]

Now #hiring 📣 #PhD position open in QCD and thermal physics for jets and photons in heavy-ion collisions! Join us in beautiful Bergen to do some exciting #physics! @UiBmatnat
https://t.co/6nwBfxeddF

[Risto Paatelainen @RPaatelainen]

Home snooker setup finally ready for some action 🤩🥳 Interesting to see if I can make any serious progress (if not, I ask help form the best @leewalker147 @SightRightUK 😁)

[Risto Paatelainen @RPaatelainen]

@ZhongboK 😂

[Risto Paatelainen @RPaatelainen]

New paper out https://t.co/3vhaAfnFBD with my two extremely talented PhD students @KaapoSeppanen and Pablo Navarrete 🥳. Thx to @SuomenAkatemia