Paolo Molignini, PhD
@pmolignini.bsky.social
Researcher at Stockholm University studying quantum simulation, nonequilibrium dynamics, and computational methods for quantum physics.
I post about research, data science, machine learning, probability & statistics.
https://medium.com/@moligninip
I post about research, data science, machine learning, probability & statistics.
https://medium.com/@moligninip
My happy place is coding a quantum algorithm in Python while listening to videogame soundtracks <3
October 28, 2025 at 12:57 PM
My happy place is coding a quantum algorithm in Python while listening to videogame soundtracks <3
The 2025 Nobel Prize in Physics proved that quantum mechanics isn’t just microscopic — entire circuits can tunnel and quantize! 🧠✨
Read my latest on how this discovery paved the way for today’s superconducting qubits ↓
medium.com/science-spec...
#QuantumPhysics #NobelPrize #Tech #Science #Quantum
Read my latest on how this discovery paved the way for today’s superconducting qubits ↓
medium.com/science-spec...
#QuantumPhysics #NobelPrize #Tech #Science #Quantum
October 27, 2025 at 11:10 PM
The 2025 Nobel Prize in Physics proved that quantum mechanics isn’t just microscopic — entire circuits can tunnel and quantize! 🧠✨
Read my latest on how this discovery paved the way for today’s superconducting qubits ↓
medium.com/science-spec...
#QuantumPhysics #NobelPrize #Tech #Science #Quantum
Read my latest on how this discovery paved the way for today’s superconducting qubits ↓
medium.com/science-spec...
#QuantumPhysics #NobelPrize #Tech #Science #Quantum
🚀 50× GPU speedup with AETHER!
Huge thanks to Ábel Tóth & Balázs Bonifert — our multiconfigurational simulations now run ~50× faster than serial MCTDH-X! 🤯
Two fermions on a 128×128 grid in the plot. Computations taking a month on CPU now <1 day!
#QuantumSimulation #HPC #GPUComputing #AETHER
Huge thanks to Ábel Tóth & Balázs Bonifert — our multiconfigurational simulations now run ~50× faster than serial MCTDH-X! 🤯
Two fermions on a 128×128 grid in the plot. Computations taking a month on CPU now <1 day!
#QuantumSimulation #HPC #GPUComputing #AETHER
October 23, 2025 at 6:46 PM
🚀 50× GPU speedup with AETHER!
Huge thanks to Ábel Tóth & Balázs Bonifert — our multiconfigurational simulations now run ~50× faster than serial MCTDH-X! 🤯
Two fermions on a 128×128 grid in the plot. Computations taking a month on CPU now <1 day!
#QuantumSimulation #HPC #GPUComputing #AETHER
Huge thanks to Ábel Tóth & Balázs Bonifert — our multiconfigurational simulations now run ~50× faster than serial MCTDH-X! 🤯
Two fermions on a 128×128 grid in the plot. Computations taking a month on CPU now <1 day!
#QuantumSimulation #HPC #GPUComputing #AETHER
🌌 Matter can walk through walls — and that’s what makes the Sun shine! ☀️
Particles can tunnel through barriers like ghosts 👻 in a quantum world ruled by probabilities.
Read my latest #ScienceSpectrum story on #Medium 👇
medium.com/science-spec...
#Physics #Quantum #QuantumPhysics #Science #Tech
Particles can tunnel through barriers like ghosts 👻 in a quantum world ruled by probabilities.
Read my latest #ScienceSpectrum story on #Medium 👇
medium.com/science-spec...
#Physics #Quantum #QuantumPhysics #Science #Tech
October 16, 2025 at 10:15 AM
🌌 Matter can walk through walls — and that’s what makes the Sun shine! ☀️
Particles can tunnel through barriers like ghosts 👻 in a quantum world ruled by probabilities.
Read my latest #ScienceSpectrum story on #Medium 👇
medium.com/science-spec...
#Physics #Quantum #QuantumPhysics #Science #Tech
Particles can tunnel through barriers like ghosts 👻 in a quantum world ruled by probabilities.
Read my latest #ScienceSpectrum story on #Medium 👇
medium.com/science-spec...
#Physics #Quantum #QuantumPhysics #Science #Tech
In quantum physics, guessing isn’t sloppy—it’s powerful! The variational principle turns intuition into precision, guiding everything from atomic models to quantum computing.
Read my #Medium latest story: The Art of the Quantum Guess ↓
medium.com/science-spec...
#Quantum #QuantumPhysics #Science
Read my #Medium latest story: The Art of the Quantum Guess ↓
medium.com/science-spec...
#Quantum #QuantumPhysics #Science
The Art of the Quantum Guess
How a Single Principle is Guiding Most of Our Modern Studies in Quantum Physics
medium.com
October 9, 2025 at 4:20 PM
In quantum physics, guessing isn’t sloppy—it’s powerful! The variational principle turns intuition into precision, guiding everything from atomic models to quantum computing.
Read my #Medium latest story: The Art of the Quantum Guess ↓
medium.com/science-spec...
#Quantum #QuantumPhysics #Science
Read my #Medium latest story: The Art of the Quantum Guess ↓
medium.com/science-spec...
#Quantum #QuantumPhysics #Science
A single curve can reveal everything about your classifier 📈 In my latest story, I show how the ROC curve turns complex ML comparisons into clear insight — from logistic regression to random forests 🔍
👉 medium.com/data-science...
#DataScience #MachineLearning #Medium #Science #Python #Programming
👉 medium.com/data-science...
#DataScience #MachineLearning #Medium #Science #Python #Programming
October 6, 2025 at 9:23 PM
A single curve can reveal everything about your classifier 📈 In my latest story, I show how the ROC curve turns complex ML comparisons into clear insight — from logistic regression to random forests 🔍
👉 medium.com/data-science...
#DataScience #MachineLearning #Medium #Science #Python #Programming
👉 medium.com/data-science...
#DataScience #MachineLearning #Medium #Science #Python #Programming
Wrapped up #BEC2025 in Sant Feliu de Guíxols 🌊—an inspiring week of world-class #AMOphysics. Grateful to present our work on long-range quantum gases with #MCTDHX & #AETHER, and for the many stimulating discussions. Huge thanks to the organizers! 🙌 #QuantumSimulation #UltracoldAtoms
September 14, 2025 at 4:35 PM
Wrapped up #BEC2025 in Sant Feliu de Guíxols 🌊—an inspiring week of world-class #AMOphysics. Grateful to present our work on long-range quantum gases with #MCTDHX & #AETHER, and for the many stimulating discussions. Huge thanks to the organizers! 🙌 #QuantumSimulation #UltracoldAtoms
🚀 Playing Quantum Lego: Building Exotic Physics with Ultracold Atoms, in my latest #Medium article published in #ScienceSpectrum.
👉 Read the full article: medium.com/science-spec...
#QuantumPhysics #UltracoldAtoms #QuantumSimulation #ScienceCommunication #Research #Innovation #Technology #STEM
👉 Read the full article: medium.com/science-spec...
#QuantumPhysics #UltracoldAtoms #QuantumSimulation #ScienceCommunication #Research #Innovation #Technology #STEM
September 11, 2025 at 10:00 AM
🚀 Playing Quantum Lego: Building Exotic Physics with Ultracold Atoms, in my latest #Medium article published in #ScienceSpectrum.
👉 Read the full article: medium.com/science-spec...
#QuantumPhysics #UltracoldAtoms #QuantumSimulation #ScienceCommunication #Research #Innovation #Technology #STEM
👉 Read the full article: medium.com/science-spec...
#QuantumPhysics #UltracoldAtoms #QuantumSimulation #ScienceCommunication #Research #Innovation #Technology #STEM
❄️ The coldest place in the Universe isn’t in space—it’s in labs on Earth! My new article explores how atoms are cooled to billionths of a degree, why it matters for quantum tech, and what makes each species special. 🚀 medium.com/me/stats/pos... medium.com/me/stats/pos...
#UltracoldAtoms #Quantum
#UltracoldAtoms #Quantum
September 10, 2025 at 10:35 AM
❄️ The coldest place in the Universe isn’t in space—it’s in labs on Earth! My new article explores how atoms are cooled to billionths of a degree, why it matters for quantum tech, and what makes each species special. 🚀 medium.com/me/stats/pos... medium.com/me/stats/pos...
#UltracoldAtoms #Quantum
#UltracoldAtoms #Quantum
A privilege to speak at Perspectives in Non-Hermitian Systems in San Sebastián last week—beautiful city & inspiring event! Shared new results on non-Hermitian quantum dynamics w/ Karin Nakanishi, Nicolò Defenu & R. Chitra. Thanks to the organizers! 🌊✨ #QuantumPhysics #NonHermitian #Research #Quantum
September 10, 2025 at 10:31 AM
A privilege to speak at Perspectives in Non-Hermitian Systems in San Sebastián last week—beautiful city & inspiring event! Shared new results on non-Hermitian quantum dynamics w/ Karin Nakanishi, Nicolò Defenu & R. Chitra. Thanks to the organizers! 🌊✨ #QuantumPhysics #NonHermitian #Research #Quantum
Proved 3 open conjectures by Hegselmann on ε-switches in the HK model ⚡:
1️⃣ Finitely many switches
2️⃣ Consistent dynamics between them
3️⃣ Invariant under affine transforms
Check out the full preprint:
arxiv.org/abs/2408.13535
#opiniondynamics #HKmodel #math #research #graphs #networks
1️⃣ Finitely many switches
2️⃣ Consistent dynamics between them
3️⃣ Invariant under affine transforms
Check out the full preprint:
arxiv.org/abs/2408.13535
#opiniondynamics #HKmodel #math #research #graphs #networks
August 26, 2025 at 1:56 PM
Proved 3 open conjectures by Hegselmann on ε-switches in the HK model ⚡:
1️⃣ Finitely many switches
2️⃣ Consistent dynamics between them
3️⃣ Invariant under affine transforms
Check out the full preprint:
arxiv.org/abs/2408.13535
#opiniondynamics #HKmodel #math #research #graphs #networks
1️⃣ Finitely many switches
2️⃣ Consistent dynamics between them
3️⃣ Invariant under affine transforms
Check out the full preprint:
arxiv.org/abs/2408.13535
#opiniondynamics #HKmodel #math #research #graphs #networks
🚀 New #ScienceSpectrum article on my latest #QuantumPhysics research! We show how long-range interactions reshape quasicrystals, creating exotic phases & self-bound states.
Read more 👉 medium.com/science-spec...
#QuantumSimulation #Physics #Research
Read more 👉 medium.com/science-spec...
#QuantumSimulation #Physics #Research
A Long-Range Walk Between Order and Chaos
How Dipolar Interactions Turn Quasicrystals Into Laboratories for Exotic Localization
medium.com
August 16, 2025 at 11:58 AM
🚀 New #ScienceSpectrum article on my latest #QuantumPhysics research! We show how long-range interactions reshape quasicrystals, creating exotic phases & self-bound states.
Read more 👉 medium.com/science-spec...
#QuantumSimulation #Physics #Research
Read more 👉 medium.com/science-spec...
#QuantumSimulation #Physics #Research
My latest work "Stability of quasicrystalline ultracold fermions to dipolar interactions" published in @apsphysics.bsky.social.
I explore how long-range interactions impact localized & extended quantum states in quasiperiodic structures: doi.org/10.1103/szdc...
#Physics #Quantum #QuantumSimulators
I explore how long-range interactions impact localized & extended quantum states in quasiperiodic structures: doi.org/10.1103/szdc...
#Physics #Quantum #QuantumSimulators
Stability of quasicrystalline ultracold fermions to dipolar interactions
The dynamics of ultracold fermions in one-dimensional quasiperiodic optical lattices under dipolar interactions is investigated, revealing that long-range interactions stabilize a coexistence phase of...
doi.org
August 16, 2025 at 11:55 AM
My latest work "Stability of quasicrystalline ultracold fermions to dipolar interactions" published in @apsphysics.bsky.social.
I explore how long-range interactions impact localized & extended quantum states in quasiperiodic structures: doi.org/10.1103/szdc...
#Physics #Quantum #QuantumSimulators
I explore how long-range interactions impact localized & extended quantum states in quasiperiodic structures: doi.org/10.1103/szdc...
#Physics #Quantum #QuantumSimulators
Ever wondered what powers quantum tech under the hood? It’s all in the Schrödinger equation — elegant, complex, and beautiful. I break it down in my latest #Medium story 👇
🔗 medium.com/science-spec...
#Quantum #Physics #ScienceWriting #Schrodinger #ScienceSpectrum #QuantumComputing #Outreach #STEM
🔗 medium.com/science-spec...
#Quantum #Physics #ScienceWriting #Schrodinger #ScienceSpectrum #QuantumComputing #Outreach #STEM
The Instruction Manual for Quantum Systems
All You Need to Know About the Schrödinger Equation
medium.com
August 4, 2025 at 2:36 PM
Ever wondered what powers quantum tech under the hood? It’s all in the Schrödinger equation — elegant, complex, and beautiful. I break it down in my latest #Medium story 👇
🔗 medium.com/science-spec...
#Quantum #Physics #ScienceWriting #Schrodinger #ScienceSpectrum #QuantumComputing #Outreach #STEM
🔗 medium.com/science-spec...
#Quantum #Physics #ScienceWriting #Schrodinger #ScienceSpectrum #QuantumComputing #Outreach #STEM
🔍 Can long-range interactions destroy localization?
Bastien Dumont explored this during his internship w/ me by adding a level-statistics module to EDITH, our ED code. Result: long-range terms push MBL systems toward chaos!
👏 Amazing work!
#MBL #QuantumChaos #EDITH #Physics #Internship #Research
Bastien Dumont explored this during his internship w/ me by adding a level-statistics module to EDITH, our ED code. Result: long-range terms push MBL systems toward chaos!
👏 Amazing work!
#MBL #QuantumChaos #EDITH #Physics #Internship #Research
July 29, 2025 at 8:16 AM
🔍 Can long-range interactions destroy localization?
Bastien Dumont explored this during his internship w/ me by adding a level-statistics module to EDITH, our ED code. Result: long-range terms push MBL systems toward chaos!
👏 Amazing work!
#MBL #QuantumChaos #EDITH #Physics #Internship #Research
Bastien Dumont explored this during his internship w/ me by adding a level-statistics module to EDITH, our ED code. Result: long-range terms push MBL systems toward chaos!
👏 Amazing work!
#MBL #QuantumChaos #EDITH #Physics #Internship #Research
🚨 New preprint! 🚨
My first foray into opinion dynamics is out:
“Nonmonotonic consensus transitions in bounded-confidence dynamics on unbiased networks”
📄 arxiv.org/abs/2507.14276
More links ≠ more consensus—sometimes the opposite!
#OpinionDynamics #arXiv #ComplexSystems
My first foray into opinion dynamics is out:
“Nonmonotonic consensus transitions in bounded-confidence dynamics on unbiased networks”
📄 arxiv.org/abs/2507.14276
More links ≠ more consensus—sometimes the opposite!
#OpinionDynamics #arXiv #ComplexSystems
July 24, 2025 at 7:05 AM
🚨 New preprint! 🚨
My first foray into opinion dynamics is out:
“Nonmonotonic consensus transitions in bounded-confidence dynamics on unbiased networks”
📄 arxiv.org/abs/2507.14276
More links ≠ more consensus—sometimes the opposite!
#OpinionDynamics #arXiv #ComplexSystems
My first foray into opinion dynamics is out:
“Nonmonotonic consensus transitions in bounded-confidence dynamics on unbiased networks”
📄 arxiv.org/abs/2507.14276
More links ≠ more consensus—sometimes the opposite!
#OpinionDynamics #arXiv #ComplexSystems
Making a tough choice—like hiring, dating, or house hunting? The 37% Rule from probability says: skip the first third, then choose the next best. It’s surprisingly effective! Read my full story on #Medium 👉 medium.com/data-science...
#DataScience #DecisionMaking #Probability #OptimalStopping
#DataScience #DecisionMaking #Probability #OptimalStopping
How To Make The Right Choice— According To Math
The 37% Rule Simplifies Tough, Time-Consuming Selection Processes
medium.com
July 21, 2025 at 9:21 AM
Making a tough choice—like hiring, dating, or house hunting? The 37% Rule from probability says: skip the first third, then choose the next best. It’s surprisingly effective! Read my full story on #Medium 👉 medium.com/data-science...
#DataScience #DecisionMaking #Probability #OptimalStopping
#DataScience #DecisionMaking #Probability #OptimalStopping
🚨 New preprint! We show how to disentangle topological edge states and non-Hermitian skin modes in dissipative quantum systems w/ dynamical observables. A step toward robust control of open quantum devices!w/ F. Yang, M. Zelenayová & E. Bergholtz @stockholmuni.bsky.social
📄 arxiv.org/abs/2506.16308
📄 arxiv.org/abs/2506.16308
June 27, 2025 at 10:06 AM
🚨 New preprint! We show how to disentangle topological edge states and non-Hermitian skin modes in dissipative quantum systems w/ dynamical observables. A step toward robust control of open quantum devices!w/ F. Yang, M. Zelenayová & E. Bergholtz @stockholmuni.bsky.social
📄 arxiv.org/abs/2506.16308
📄 arxiv.org/abs/2506.16308
A new feline joins the quantum race: Amazon & Caltech’s Ocelot chip uses “cat qubits” to tackle error correction with bosonic codes. Is it a game-changer for quantum hardware?
Read the #Medium story: medium.com/the-quantast...
#QuantumComputing #Quantum #CatQubits #Technology #ScienceCommunication
Read the #Medium story: medium.com/the-quantast...
#QuantumComputing #Quantum #CatQubits #Technology #ScienceCommunication
April 23, 2025 at 11:17 AM
A new feline joins the quantum race: Amazon & Caltech’s Ocelot chip uses “cat qubits” to tackle error correction with bosonic codes. Is it a game-changer for quantum hardware?
Read the #Medium story: medium.com/the-quantast...
#QuantumComputing #Quantum #CatQubits #Technology #ScienceCommunication
Read the #Medium story: medium.com/the-quantast...
#QuantumComputing #Quantum #CatQubits #Technology #ScienceCommunication
Just wrapped up an inspiring 2-day retreat on Dynamic Quantum Matter at Rosersbergs Slottshotell! Amazing talks & ideas on non-equilibrium phases, topological matter, open systems & more. Grateful to all who joined—excited for what’s next! #QuantumPhysics #WallenbergFoundation #Research #STEM
April 11, 2025 at 5:14 PM
Just wrapped up an inspiring 2-day retreat on Dynamic Quantum Matter at Rosersbergs Slottshotell! Amazing talks & ideas on non-equilibrium phases, topological matter, open systems & more. Grateful to all who joined—excited for what’s next! #QuantumPhysics #WallenbergFoundation #Research #STEM
Had a fantastic visit to @lund-university.bsky.social 🇸🇪 last week, invited by Prof. Stephanie Reimann ✨ Great chats on #QuantumSimulators & #MCTDHX, and exciting plans for future collabs! Now's the time to grow Sweden's #ultracold experimental scene 🚀❄️ #QuantumTech #STEM #Physics
April 7, 2025 at 2:33 PM
Had a fantastic visit to @lund-university.bsky.social 🇸🇪 last week, invited by Prof. Stephanie Reimann ✨ Great chats on #QuantumSimulators & #MCTDHX, and exciting plans for future collabs! Now's the time to grow Sweden's #ultracold experimental scene 🚀❄️ #QuantumTech #STEM #Physics
Have you ever wanted to learn how to simulate many-body quantum systems but didn't know where to start? Try our lecture notes on #MCTDHX! They have just been peer-reviewed and published in @scipost.bsky.social! 🎉
scipost.org/SciPostPhysL...
#Research #Quantum #Physics #Tech #Programming
scipost.org/SciPostPhysL...
#Research #Quantum #Physics #Tech #Programming
April 1, 2025 at 8:07 PM
Have you ever wanted to learn how to simulate many-body quantum systems but didn't know where to start? Try our lecture notes on #MCTDHX! They have just been peer-reviewed and published in @scipost.bsky.social! 🎉
scipost.org/SciPostPhysL...
#Research #Quantum #Physics #Tech #Programming
scipost.org/SciPostPhysL...
#Research #Quantum #Physics #Tech #Programming
What do fulgurites and clustered quantum states have in common? 🤔
👉 Read my latest #Medium article in #ScienceSpectrum - "Quantum stability takes a dip(ole)" - to find out!
#Quantum #Physics #QuantumPhysics #QuantumComputing #Research #STEM #Tech #Science #UltracoldAtoms #Outreach #Writing
👉 Read my latest #Medium article in #ScienceSpectrum - "Quantum stability takes a dip(ole)" - to find out!
#Quantum #Physics #QuantumPhysics #QuantumComputing #Research #STEM #Tech #Science #UltracoldAtoms #Outreach #Writing
March 29, 2025 at 1:36 PM
What do fulgurites and clustered quantum states have in common? 🤔
👉 Read my latest #Medium article in #ScienceSpectrum - "Quantum stability takes a dip(ole)" - to find out!
#Quantum #Physics #QuantumPhysics #QuantumComputing #Research #STEM #Tech #Science #UltracoldAtoms #Outreach #Writing
👉 Read my latest #Medium article in #ScienceSpectrum - "Quantum stability takes a dip(ole)" - to find out!
#Quantum #Physics #QuantumPhysics #QuantumComputing #Research #STEM #Tech #Science #UltracoldAtoms #Outreach #Writing
I challenge you to a guessing game:
- 🎲 Player A picks a number 1 - 100 with some probability.
-💡 Player B must guess that number to earn its dollar value.
If you knew the probability distribution, how would you maximize your earnings?
🔗 medium.com/puzzle-spher...
#Probability #DataScience #Quiz
- 🎲 Player A picks a number 1 - 100 with some probability.
-💡 Player B must guess that number to earn its dollar value.
If you knew the probability distribution, how would you maximize your earnings?
🔗 medium.com/puzzle-spher...
#Probability #DataScience #Quiz
March 27, 2025 at 8:35 AM
I challenge you to a guessing game:
- 🎲 Player A picks a number 1 - 100 with some probability.
-💡 Player B must guess that number to earn its dollar value.
If you knew the probability distribution, how would you maximize your earnings?
🔗 medium.com/puzzle-spher...
#Probability #DataScience #Quiz
- 🎲 Player A picks a number 1 - 100 with some probability.
-💡 Player B must guess that number to earn its dollar value.
If you knew the probability distribution, how would you maximize your earnings?
🔗 medium.com/puzzle-spher...
#Probability #DataScience #Quiz
Reposted by Paolo Molignini, PhD
For the moment, the quantum community is elated over an algorithm that has yet to be matched by a classical equivalent.
Quantum Speedup Found for Huge Class of Hard Problems | Quanta Magazine
It’s been difficult to find important questions that quantum computers can answer faster than classical machines, but a new algorithm appears to do it for some critical optimization tasks.
www.quantamagazine.org
March 26, 2025 at 8:04 PM
For the moment, the quantum community is elated over an algorithm that has yet to be matched by a classical equivalent.