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Fran J H Heras

@fjhheras.bsky.social
1.2K followers 165 following 25 posts

Physicist. Mathematician. Biologist. Now engineering Science @ Google DeepMind English+Español. Opinions are my own fjhheras.gitlab.io

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Reposted by Fran J H Heras
Javier Peláez @irreductible.bsky.social · 16/10/2026
Si el SuperNiño que se está gestando ya era preocupante... ahora le ha salido otro brazo (WTF!) Con datos de hace unos días parece que el calor se ha extendido a lo largo de la costa de Chile y hacia el Pacífico sureste–este, creando un segundo brazo de aguas cálidas.
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Fran J H Heras @fjhheras.bsky.social · 13/10/2026
Read more about Gemini Argon and our results in the blog post: goo.gle/3W85sXj #QuantumComputing #QuantumErrorCorrection #AlphaQubit #AIforScience #GoogleDeepMind
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Fran J H Heras @fjhheras.bsky.social · 13/10/2026
Spacetime cost (qubits × runtime) is often what decides whether an algorithm can actually run on early fault-tolerant hardware. Reducing it for building blocks will enable higher-level quantum algorithms.
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Fran J H Heras @fjhheras.bsky.social · 13/10/2026
2. We used Argon to discover a quantum arcsin subroutine that cuts spacetime cost by more than 100x compared to the published quantum CORDIC baseline.
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Fran J H Heras @fjhheras.bsky.social · 13/10/2026
1. We used Argon to translate an internal version of our quantum error correction decoder, AlphaQubit, into a single, highly optimized hardware “megakernel,” nearly doubling inference throughput. Speeding up decoding is crucial, as QEC only works if the decoder keeps up with the quantum hardware.
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Fran J H Heras @fjhheras.bsky.social · 13/10/2026
Excited to see two standout results accelerating quantum computing research as part of the Gemini Argon announcement today. They are part of our work at Google DeepMind, in collaboration with Google Quantum AI.
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M @malvartinez.bsky.social · 28/08/2026
Una de las dos Españas ha de helarte/asarte el corazón
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The War on Cars @thewaroncars.bsky.social · 19/08/2026
"Examinations of London schoolchildren before and after the introduction of the city’s ultra-low emission zone (Ulez) found a restoration of lung capacity that had been stunted by exposure to pollution."
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Andres Guadamuz @technollama.bsky.social · 22/07/2026
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Fran J H Heras @fjhheras.bsky.social · 09/07/2026
New paper in Nature: Reinforcement learning control of quantum error correction www.nature.com/articles/s41...
nature.com
Reinforcement learning control of quantum error correction - Nature
By integrating reinforcement learning with quantum error correction, a quantum computer continuously self-calibrates during computation, achieving record logical error rates and enhanced resilience to...
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Dr. Jonathan Foley @globalecoguy.bsky.social · 25/06/2026
I especially love this diagram.
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worm @rfksbrainworm.bsky.social · 22/06/2026
Larry the cat as the grim reaper knocking on a door with a trail of the past 6 UK prime ministers all slain
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Yoïn van Spijk @yvanspijk.bsky.social · 21/12/2025
Most Spanish words come from Latin, but did you know there are 2 different types? Words inherited from spoken Latin vs. words borrowed from written Latin during the Middle Ages and after. Some words took both routes, creating doublets. Here’s episode 3 of my 10-part doublet series. Next: Italian.
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🕸️ Cobweb Curtains For Zoosha 🦇 @brianvan.bsky.social · 09/11/2025
So it turns out... the US air travel system was incredibly, deeply dependent on federal funding to just run day-to-day all this time, to the benefit of private airline shareholders, when everyone thinks that state-run trains are leeching off the government. Weird!
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Patrick Wyman @patrickwyman.bsky.social · 04/11/2025
We’re further away from The Rolling Stones recording “Sympathy for the Devil” than they were from the murders of the Romanovs when they recorded it
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Fran J H Heras @fjhheras.bsky.social · 22/10/2025
A step towards real-world applications of quantum computers! blog.google/technology/r... It was really fun to be involved in this work, by using Alpha Evolve to optimize quantum circuits.
blog.google
Our Quantum Echoes algorithm is a big step toward real-world applications for quantum computing
Our latest quantum breakthrough, Quantum Echoes, offers a path toward unprecedented scientific discoveries and analysis.
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Reposted by Fran J H Heras
simon laughlin @neuraldesign.bsky.social · 23/07/2025
In @elife.bsky.social: Investments in photoreceptors compete with investments in optics to determine eye design doi.org/10.7554/eLif... Much improved - key points emphasised, arguments clarified. Thanks to editors, referees and above all my co-author Fran Hernandez
doi.org
Investments in photoreceptors compete with investments in optics to determine eye design
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Reposted by Fran J H Heras
Iain King @iainbking.com · 17/05/2025
A huge, quiet success: violence has fallen 75% in a generation:
Graph showing violence in England and Wales down 75% over 25 years
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Kiko Llaneras @kikollan.llaneras.es · 16/05/2025
¡Mapa de la renta de padre e hijos! 💶 Publicamos unos datos fascinantes. El cruce de 1) la renta de hogares de los ochenta y 2) las rentas de sus hijos hoy. En el mapa, renta bruta actual de los hijos (1980-1986) de hogares *renta baja* de cada lugar. Luego hilo👇
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ProtheanTom 🇪🇺⌛ @protheantom.bsky.social · 25/03/2025
El gasto público sanitario por persona en Estados Unidos es 5 veces superior al de España a pesar de tener una cobertura ridícula en comparación con España Esto sucede cuando se construye sobre un sistema sanitario privado que prima los beneficios económicos por encima de la salud de los ciudadanos
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elDiario.es @eldiario.es · 21/03/2025
Los datos que señalan que vamos a una economía de herederos como la de principios del siglo XX👇 El peso de las herencias de viviendas y del resto de inmuebles (fincas rústicas, solares...) en el PIB de España alcanza máximos no vistos desde la Primera Guerra Mundial: más del 3% eldiario.es/1_b94e3b
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Kevin M. Kruse @kevinmkruse.bsky.social · 09/02/2025
Whenever you hear someone sneer about scientific research that seems useless to them — “they’re studying the spit of lizards?!” — remind them that’s exactly how we got Ozempic. globalnews.ca/news/9793403...
globalnews.ca
How a Canadian scientist and a venomous lizard helped pave the way for Ozempic - National | Globalnews.ca
In 1984, Dr. Daniel Drucker, an endocrinologist from the University of Toronto, discovered a hormone that helped pave the way for popular diabetes drugs such as Ozempic.
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Kelsey Johnson @profkelsey.bsky.social · 05/02/2025
“The demise of just one Gen1 Starlink satellite produces about 30 kilograms (66 pounds) of aluminum oxide, a compound that eats away at the ozone layer. A new study finds these oxides have increased 8-fold between 2016 and 2022, and the recent surge is increasing the pollution even more.”
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Jeremy Cliffe @jeremycliffe.bsky.social · 30/01/2025
Spain's boom is a story of: - energy abundance (wind, solar, LNG) - public investment thanks to NextGenEU & domestic fiscal choices - labour reforms driving higher-quality employment - immigration combined with successful integration So some luck - but also good policy.
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icesurfer.bsky.social @icesurfer.bsky.social · 30/01/2025
- This massive asteroid has 99.5% chance of hitting Earth in 10 years - Should we keep it secret? People might panic - Like they are panicking for climate change, you mean? - Ah, good point.
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Alejandro Cencerrado 7291 @alexbici.bsky.social · 12/01/2025
Nunca dejará de sorprenderme la naturalidad con la que hemos aceptado que nuestra ciudad sea un gran y feo parking de coches sin espacio para nadie.
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Mark D. Levine @marklevinenyc.bsky.social · 27/01/2025
Max capacity passengers per hour: * Boring Co’s Vegas Loop: 4,500 * NYC subway 6 train: 105,000
Elon musk in a tweet:

The throughout in the Vegas tunnels is already better than an average
subway btw.
It's a myth that subways are super efficient.
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Stockmann @stockmann.bsky.social · 25/01/2025
-Cari, dime cosas románticas. -Contrafuerte, bóveda de cañón, arco de medio punto... -¡Con T, idiota! -Transepto, triforio, tímpano...
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Ele Willoughby @minouette.bsky.social · 05/01/2025
Happy birthday to #mathematician & #astronomer Nicole-Reine Lepaute (1723-1788)! 🧪🐡🧮🔭👩🏼‍🔬 #histsci My #linocut celebrates her calculated path of the solar eclipse of 1764. She also worked with Alexis Clairaut & Jérôme Lalande to precisely calculate the date of return of Halley’s Comet, solving the 🧵
My linocut print of mathematician & astronomer Nicole-Reine Lepaute (1723-1788) in a vertical gradient (bottom to top) of bright pink to lavender on white paper. She wears a wig and gown and the portrait is from the chest to head. Her 12 diagrams of the phases of the annular the solar eclipse of 1764 as viewed from Paris appear across her shoulders. Behind her head in green is her map of the path of the eclipse across Europe.
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Fran J H Heras @fjhheras.bsky.social · 25/12/2024
Feliz día de despistarse, de olvidar que aún hay un Imperio Romano y de crear otro.
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Endorcista @endorcista.bsky.social · 22/12/2024
En una provincia en la que el coche de Google maps, que pasa cada 15 años, te puede fotografiar metiendo un cadáver en el maletero en una calle desierta de un pueblo casi vacío, es esperable que la gente tenga una percepción particular de las leyes de la probabilidad y la estadística.
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Fran J H Heras @fjhheras.bsky.social · 21/12/2024
Error-corrected qubits are cool, and they get even more interesting when you do logic with them! Happy to present our (Google Quantum AI + @deepmind.google.web.brid.gy ) new work demonstrating scaling and logic with the color code. Arxiv: arxiv.org/abs/2412.14256
arxiv.org
Scaling and logic in the color code on a superconducting quantum processor
Quantum error correction is essential for bridging the gap between the error rates of physical devices and the extremely low logical error rates required for quantum algorithms. Recent error-correctio...
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Fran J H Heras @fjhheras.bsky.social · 15/12/2024
El proyecto de ayer fue instalar LineageOS (lineageos.org) en un móvil viejo. Tuve que instalar una máquina virtual de windows para desbloquear el móvil (nadie usa windows en casa), y mi pobre ordenador se pasó una noche entera compilando, pero ha merecido la pena.
lineageos.org
LineageOS – LineageOS Android Distribution
LineageOS Android Distribution
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Fran J H Heras @fjhheras.bsky.social · 09/12/2024
👋
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Fran J H Heras @fjhheras.bsky.social · 09/12/2024
Our Google Quantum AI friends are presenting a new chip "Willow". Its low error rates allow, for the first time, error corrected qubits to get exponentially better as they get bigger. Blog: research.google/blog/making-... Nature article: www.nature.com/articles/s41...
research.google
Making quantum error correction work
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Reposted by Fran J H Heras
Ricard Solé @ricardsole.bsky.social · 07/12/2024
How can physics define universal laws for computation, from cells and chips to brains? In this @pnas.org Perspective, led by @sfiscience.bsky.social David Wolpert and Jan Korbel, they suggest how Stochastic Thermodynamics can provide the proper framework pnas.org/doi/epub/10....
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Fran J H Heras @fjhheras.bsky.social · 07/12/2024
¿Oficialmente? ¿O es como Plaza Herradores y la Dehesa? :P Google Maps me dice que es la "Plaza de San Pedro". "Nuestra Señora del Azogue" es la calle del lateral.
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Fran J H Heras @fjhheras.bsky.social · 07/12/2024
Yo también conocía esa acepción. Pensaba que era algo local soriano (por ser el antiguo nombre de la plaza frente a San Pedro), pero acabo de buscar y en la wikipedia habla de etimología árabe. Por ejemplo: es.m.wikipedia.org/wiki/Plaza_d...
es.m.wikipedia.org
Plaza del Azoguejo - Wikipedia, la enciclopedia libre
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Fran J H Heras @fjhheras.bsky.social · 27/11/2024
Very interesting podcast by @garethdennis.bsky.social in @novaramedia.com about trains in the UK and beyond novaramedia.com/2024/11/24/t... "Trains Are Better Than Cars. Here’s Why"
novaramedia.com
Trains Are Better Than Cars. Here’s Why | Novara Media
On the false hope of electric vehicles, the Hyperloop scam and why Rachel Reeves doesn't understand potholes.
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Robert "The Bobby Yaga" McNees @mcnees.bsky.social · 25/11/2024
Albert Einstein submitted "The Field Equations of Gravitation" to the Prussian Academy #OTD in 1915. After years of work culminating in a frenzied month-long race against David Hilbert, Einstein had finally obtained the correct form of the field equations for general relativity. 🧪 🔭 ⚛️ (1/n)
Black and white photo of Einstein standing in front of shelves of papers and journals. His messy hair is dark - not yet the famous white shock that comes to mind when you hear his name. He is wearing dark pants and a dark cardigan with light trim. Einstein is looking at the camera but not smiling.The intro of the paper reads (in German)

Die Feldgleichungen der Gravitation.
Von A. EiNSTEIN.
In zwei vor kurzem erschienenen Mitteilungen' habe ich gezeigt, wie man zu Feldgleichungen der Gravitation gelangen kann, die dem Postulat allgemeiner Relativität entsprechen, d. h. die in ihrer allgemeinen Fassung beliebigen Substitutionen der Raumzeitvariabeln gegenüber ko-variant sind.This passage shows the final field equations  relating the Ricci tensor to the stress tensor with 1/2 of the trace removed.
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Joaquín Sevilla @joaquinsevilla.bsky.social · 25/11/2024
Tras comentar tres bluiteros concluimos: 1.- seguir llamando tuit a las publicaciones (como tipex o Danone, paso a genérico) 2.- bluit también mola, porque se entiende y es corto 2.- maripost es largo pero divertido, se deja para ocasiones especiales Hemos dicho
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Fran J H Heras @fjhheras.bsky.social · 24/11/2024
👋
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Fran J H Heras @fjhheras.bsky.social · 24/11/2024
👋
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Federico Kukso @fedkukso.bsky.social · 23/11/2024
¿Cómo se trazan las rutas que toman las naves espaciales para llegar a su destino? ¿Quiénes son los encargados de planificarlas y calcularlas? Eso exploro en este artículo que publiqué en AGENCIA SINC ( @sinc-ciencia.bsky.social ) www.agenciasinc.es/Reportajes/A...
agenciasinc.es
Autopistas planetarias: así se trazan las rutas que toman las misiones espaciales
A diferencia de lo que enseñan las películas y series de ciencia ficción, las naves interplanetarias no se dirigen a su destino en línea recta. Más bien, toman sinuosas y complejas trayectorias planif...
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grumpybavarian.bsky.social @grumpybavarian.bsky.social · 20/11/2024
Beyond excited to introduce AlphaQubit, now published in Nature! AlphaQubit is a neural network for quantum error correction and achieves state-of-the-art accuracy on simulated and real-world data.
nature.com
Learning high-accuracy error decoding for quantum processors - Nature
A recurrent, transformer-based neural network, called AlphaQubit, learns high-accuracy error decoding to suppress the errors that occur in quantum systems, opening the prospect of using neural-network...
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Fran J H Heras @fjhheras.bsky.social · 20/11/2024
Really excited to share our (Google DeepMind and Google QuantumAI) new publication in @Nature, where we use neural networks to identify errors in quantum computers with state-of-the-art accuracy. Paper: www.nature.com/articles/s41... Blog: blog.google/technology/g...
nature.com
Learning high-accuracy error decoding for quantum processors - Nature
A recurrent, transformer-based neural network, called AlphaQubit, learns high-accuracy error decoding to suppress the errors that occur in quantum systems, opening the prospect of using neural-network...
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Fran J H Heras @fjhheras.bsky.social · 17/11/2024
For people interested in the life of Isaac Newton, I highly recommend a guided tour to Woolsthorpe Manor, his family house. www.nationaltrust.org.uk/visit/nottin... The famous apple tree is also there. You can buy a graft, but it will cost you upwards of ten thousand pounds!
nationaltrust.org.uk
Woolsthorpe Manor | Lincolnshire
The world changed at Woolsthorpe Manor in Lincolnshire: Sir Isaac Newton's family home and the site of some of his greatest work.
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Fran J H Heras @fjhheras.bsky.social · 17/11/2024
3. While I knew that Newton was very interested in Theology, I had no idea that he was a bit of a heretic. He was an Arian that did not believe in the Holy Trinity. en.wikipedia.org/wiki/Religio...
en.wikipedia.org
Religious views of Isaac Newton - Wikipedia
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