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Gianluca Bertaina

@gianlucabertaina

Researcher at INRiM Formerly Univ. Milano, EPFL, INO-CNR Trento #Quantum many-body #theory #programmerhumor #astronomy #gardening #scifi @gianlucabertaina@mastodon.uno https://scholar.google.com/citations?user=NUx36bgAAAAJ

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23.12.2023
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Latest posts by Gianluca Bertaina @gianlucabertaina

I will never not be angry at the way tech bros have told us that the danger is apocalyptic superintelligence when it was always obvious that the reason to worry is that we would put dumb AI in really stupid places.

26.02.2026 21:25 πŸ‘ 217 πŸ” 63 πŸ’¬ 10 πŸ“Œ 3

I see advanced LLMs more similar to very knowledgeable but ruthless students, at the moment. A "philosophical" physicist would not be able to really supervise such a student on a computational project.

14.02.2026 09:37 πŸ‘ 2 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

What argument does Trump now have against Putin? None whatsoever. And it's becoming clear he doesn't even want one beyond narrow self-interest.

Welcome to the nineteenth century.

03.01.2026 08:21 πŸ‘ 63 πŸ” 22 πŸ’¬ 9 πŸ“Œ 0

You can tell that LotR was written by an academic because Gandalf disappears for like 20 years doing research to answer a single question.

26.12.2025 00:40 πŸ‘ 5043 πŸ” 966 πŸ’¬ 51 πŸ“Œ 46
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X blocks EU Commission’s advertising account after €120 million fine | Euractiv The move came after a weekend of online attacks on the EU by the social platform’s owner, Elon Musk

I honestly don't understand why any European institution, EU-official, decision-maker of an EU member country etc. is still posting on X. It's owner literally campaigns for your destruction, despises your values and rules and you still provide his platform with reach and relevancy? Anybody home??

08.12.2025 11:21 πŸ‘ 118 πŸ” 38 πŸ’¬ 7 πŸ“Œ 2
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Editor searching reviewers in August

26.08.2025 12:48 πŸ‘ 131 πŸ” 14 πŸ’¬ 2 πŸ“Œ 2
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Google Scholar Is Doomed Academia built entire careers on a free Google service with zero guarantees. What could go wrong?

Since search is dead, how soon do you think Google Scholar is headed for the Google Graveyard? I'm betting it's soon, and academia is NOT prepared

13.08.2025 01:28 πŸ‘ 933 πŸ” 408 πŸ’¬ 54 πŸ“Œ 132
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29.07.2025 15:47 πŸ‘ 91 πŸ” 10 πŸ’¬ 4 πŸ“Œ 3

m.youtube.com/watch?v=K0si...

22.07.2025 19:21 πŸ‘ 45 πŸ” 3 πŸ’¬ 1 πŸ“Œ 0
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Unraveling Open Quantum Dynamics with Time-Dependent Variational Monte Carlo We introduce a method to simulate open quantum many-body dynamics by combining time-dependent variational Monte Carlo (tVMC) with quantum trajectory techniques. Our approach unravels the Lindblad mast...

Here is the preprint:
arxiv.org/abs/2506.23928

#OpenQuantumSystems #ComputationalPhysics #ManyBodyPhysics #QuantumMonteCarlo #QuantumMetrology #Quantum πŸ§ͺ

22.07.2025 10:29 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

This research was driven by the excellent work of Christian Apostoli and Jacopo D'Alberto and our fruitful and always fun collaboration with Marco G. Genoni and Davide E. Galli.

22.07.2025 10:29 πŸ‘ 0 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

* Unprecedented accuracy: Maintains high fidelity even in complex, highly entangled regimes, within the flexibility of the variational approach.

22.07.2025 10:29 πŸ‘ 0 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

* Massive parallelism: Double Monte Carlo sampling of configurations and of trajectories.

22.07.2025 10:29 πŸ‘ 1 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

What does this mean for researchers?
* Drastic reduction in cost: Slashes the computational resources needed for large systems.

22.07.2025 10:29 πŸ‘ 0 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

In our latest work, we introduce a new method that unravels master equations into quantum trajectories, solved using a stochastic time-dependent variational Monte Carlo approach.

22.07.2025 10:29 πŸ‘ 0 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0
Schematic representation of the otVMC method. Open quantum system dynamics is unreveled in quantum trajectories, and each trajectory is evaluated with the stochastic time-dependent variational Monte Carlo method

Schematic representation of the otVMC method. Open quantum system dynamics is unreveled in quantum trajectories, and each trajectory is evaluated with the stochastic time-dependent variational Monte Carlo method

New preprint!

Simulating the dynamics of open quantum systems is a major computational bottleneck, largely due to the exponential scaling of density matrices. We're tackling this challenge head-on. πŸ§ͺ

22.07.2025 10:29 πŸ‘ 5 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0
Butterfly meme: a physicist looks at any physical system and asks "Is this a harmonic oscillator?"

Butterfly meme: a physicist looks at any physical system and asks "Is this a harmonic oscillator?"

Our SPS group circulated this:

26.06.2025 18:33 πŸ‘ 363 πŸ” 38 πŸ’¬ 12 πŸ“Œ 4
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Un augurio ai maturandi e a Venditti: scoprire che la matematica non Γ¨ fredda, Γ¨ poesia che pensa | Il Foglio Il cantante oppone la poesia alla freddezza dei numeri e invita i ragazzi alle prese con l'esame di maturità a non “fare della matematica il proprio mestiere”. Ma la vera matematica non è calcolo sterile né oppressione di numeri: è libertà, intuizione, bellezza

www.ilfoglio.it/scienza/2025...

24.06.2025 05:49 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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Fearing yet more war;
hoping for peace.

May war-mongering leaders be removed, and innocents everywhere be safe. What else is worth saying?

22.06.2025 07:44 πŸ‘ 7 πŸ” 1 πŸ’¬ 0 πŸ“Œ 0

My students' final essays are due tomorrow. Lol.

10.06.2025 14:24 πŸ‘ 99 πŸ” 15 πŸ’¬ 6 πŸ“Œ 3
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The Helgoland 2025 quantum mechanics centenary meeting kicked off last night at the rather grand Hotel Atlantic in Hamburg, with a dinner followed by historical talks.

10.06.2025 11:58 πŸ‘ 23 πŸ” 7 πŸ’¬ 3 πŸ“Œ 0
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Fluorine surprises by becoming heaviest atom ever to quantum tunnel First experimental evidence of tunnelling in fluorine pushes the boundary of our understanding of chemical bonding

Quantum tunnelling may be common at the tiniest scales, but no one had ever observed the phenomenon in fluorine - the element was simply thought to be too heavy. Now, this accepted wisdom has been upended in new experiments that observe fluorine tunnelling

www.chemistryworld.com/news/fluorin...

06.06.2025 08:45 πŸ‘ 14 πŸ” 5 πŸ’¬ 0 πŸ“Œ 2
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How Noether’s Theorem Revolutionized Physics | Quanta Magazine Emmy Noether showed that fundamental physical laws are just a consequence of simple symmetries. A century later, her insights continue to shape physics.

The conceptual consequences of Noether’s theorem are hard to overstate.

21.05.2025 15:46 πŸ‘ 48 πŸ” 22 πŸ’¬ 0 πŸ“Œ 2
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These are real images of exoplanets.

Four super-Jupiters, imaged 10 times over 12 years around a star 133 lightyears away.

These are real, giant worlds, out there in the dark.

And we can see them.

07.05.2025 19:57 πŸ‘ 7859 πŸ” 1521 πŸ’¬ 182 πŸ“Œ 130

Git was 20 years old this week. Written by the creator of Linux as a tool to streamline his workflow - it shows the importance of making tools. If you have a better way of doing something, write and share it. It's possible that few others understand the problem, let alone have the solution you do!

04.05.2025 08:03 πŸ‘ 36 πŸ” 5 πŸ’¬ 0 πŸ“Œ 0
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La prima stagione di β€œUna mattina” - Il Post È uscito il nuovo podcast di Luca Misculin che cerca di raccontare per bene la Resistenza italiana: sono disponibili le prime cinque puntate

È uscito il nuovo podcast di Luca Misculin che cerca di raccontare per bene la Resistenza italiana: sono disponibili le prime cinque puntate

www.ilpost.it/2025/04/25/u...

25.04.2025 07:49 πŸ‘ 69 πŸ” 11 πŸ’¬ 5 πŸ“Œ 0
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We just need to turn the negative productivity of scientists at NASA and IRS auditors that DOGE fired to gainfully making shoes in Nike factories reshored from Vietnam.

This is the groundbreaking economic thinking of communist purges from Mao to Pol Pot with a sprinkle of American Exceptionalism.

13.04.2025 13:35 πŸ‘ 1493 πŸ” 350 πŸ’¬ 60 πŸ“Œ 29

Explaining to young men that outsourcing your thinking to LLMs is bad because reading and writing is like lifting for your brain

06.04.2025 02:55 πŸ‘ 2203 πŸ” 333 πŸ’¬ 30 πŸ“Œ 13
Osservati per la prima volta gli effetti quantistici della gravitΓ  - Istituto Nazionale di Fisica Nucleare

Spettacolo https://www.infn.it/osservati-per-la-prima-volta-gli-effetti-quantistici-della-gravita/

01.04.2025 09:42 πŸ‘ 2 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0