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Daniel González

@danielgc25.bsky.social
166 followers 153 following 23 posts

Diagonalizo matrices | Ramon y Cajal fellow @ IFT (UAM-CSIC) | Previously @ Harvard, IQOQI, ICFO & MPQ

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Reposted by Daniel González
Nature @nature.com · 06/06/2025
Two-dimensional quantum platforms have simulated a process in particle physics called string breaking that generates matter–antimatter pairs go.nature.com/4449MZ9
go.nature.com
Simulation of matter–antimatter creation on quantum platforms
Two-dimensional quantum platforms have simulated a process in particle physics called string breaking that generates matter–antimatter pairs.
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Reposted by Daniel González
Nature @nature.com · 06/06/2025
Two quantum-simulation experiments make a step towards understanding the forces between elementary particles go.nature.com/3HrgpvP
go.nature.com
Quantum computers tackle unexplored particle physics
Two quantum-simulation experiments make a step towards understanding the forces between elementary particles.
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Reposted by Daniel González
IQOQI Innsbruck @iqoqi.bsky.social · 05/06/2025
An international team led by Peter Zoller together with #QuEra Computing has directly observed “string breaking” in a two-dimensional analog #quantum #simulator 🧲⚡️⚛ Read more: iqoqi.at/.../1006-str.... 👉 www.nature.com/articles/s41... @nature.com 📸: Harald Ritsch @fwf-at.bsky.social #physics
A blue and a red sphere spinning out of the dark
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Daniel González @danielgc25.bsky.social · 23/04/2025
Still one week to apply!
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Reposted by Daniel González
Quantiki @quantiki.bsky.social · 01/04/2025
PhD position in Quantum Algorithms for High-Energy Physics at the Institute for Theoretical Physics in Madrid www.quantiki.org/position/phd...
quantiki.org
PhD position in Quantum Algorithms for High-Energy Physics at the Institute for Theoretical Physics in Madrid | Quantiki
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Reposted by Daniel González
Información y Tecnologías Cuánticas en España @qipcspain.bsky.social · 28/03/2025
PhD position. PhD position in Quantum Algorithms for High-Energy Physics at Institute for Theoretical Physics (UAM-CSIC) www.cuantica2025.es/job-market
Job offer sign
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Daniel González @danielgc25.bsky.social · 27/03/2025
I am very happy to announce that I will soon join @iftuamcsic.bsky.social as a Ramon y Cajal Fellow ‼️ I am also offering a PhD position on "Quantum Algorithms for High-Energy Physics" ⚛️ Deadline is April 30 and the details can be found here: www.gonzalez-cuadra.com/open-positions Please share!
gonzalez-cuadra.com
González-Cuadra Group @ IFT - Open positions
PhD position in Quantum Algorithms for High-Energy Physics (currently open)
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Reposted by Daniel González
Quanta Magazine @quantamagazine.org · 27/02/2025
Why were the first drawings of neurons defaced? 🧵1/9
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Reposted by Daniel González
Álvaro M. Alhambra @alvalhambra.bsky.social · 21/02/2025
We are excited to announce the workshop "Entangle This VI" that we are organizing on quantum science and technology in Madrid, 15th-19th September 2025. Registration and abstract submission is currently open! indico.ift.uam-csic.es/event/27/
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Reposted by Daniel González
Leah Stokes @leahstokes.bsky.social · 09/01/2025
Cannot stop thinking about how Octavia Butler wrote a book in 1993 about climate change. It opens with deadly fires in LA in 2025. In the story, a fascist President has just won office with the campaign slogan "Make America Great Again." She was a modern day Nostradamus. If only we'd listened.
The cover of the book Parable of the Sower.
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Reposted by Daniel González
Juan José García-Ripoll @jjgarciaripoll.bsky.social · 01/01/2025
Amusing story by @teorth.bsky.social on Mastodon about paper rejections mathstodon.xyz/@tao/1137212...
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Reposted by Daniel González
The Hilbert Space Post @hilbertspacepost.bsky.social · 23/12/2024
Constructing a fermionic quantum processor can bypass certain challenges associated with qubit mapping. However, the implementation of error correction for such processors is still uncertain. A recent article has explored this issue. arxiv.org/abs/2412.16081
arxiv.org
Error-corrected fermionic quantum processors with neutral atoms
Many-body fermionic systems can be simulated in a hardware-efficient manner using a fermionic quantum processor. Neutral atoms trapped in optical potentials can realize such processors, where non-loca...
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Daniel González @danielgc25.bsky.social · 20/12/2024
The Lukin theory (sub)group wishes you a happy winter holidays! 🎄⚛️☃️
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Reposted by Daniel González
Iftach Yakar @quantumyakar.bsky.social · 04/12/2024
Measuring stabilizers in a quantum error correcting code
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Reposted by Daniel González
Katy's Shit Cartoons @cartoons.katymontgomerie.com · 28/11/2024
Atoms are binary. They are either intended to be hydrogen or helium. We can't just scrap this worldview just because of a handful of exceptions
Pie chart:
74% hydrogen
25% helium
1% other (in tiny font)
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Daniel González @danielgc25.bsky.social · 01/12/2024
Yes, please!
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Daniel González @danielgc25.bsky.social · 23/11/2024
I thought by now I would be over these kinds of things, but I just saw mejillones en escabeche in a korean supermarket in Cambridge, Massachusetts, and 🥹🥹 *** cries in galician ***
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Daniel González @danielgc25.bsky.social · 23/11/2024
Pretty cool results! It's great to see how quantum info tools (tensor networks in this case) are shedding new light into high-energy physics phenomena. Hopefully soon 😬 quantum simulators will be able to target more complicated field theories and higher dimensions 🤞🏼
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Daniel González @danielgc25.bsky.social · 21/11/2024
I want to finish by thanking my amazing collaborators. This was a long and challenging project, and it could not have succeed without their help and support 🫶
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Daniel González @danielgc25.bsky.social · 21/11/2024
Personally, this was a very special project, since I started thinking how to simulate similar gauge theories during my master thesis. During the last decade, Rydberg simulators have developed tremendously, allowing us to bring these theoretical ideas to an experimental reality.
media.tenor.com
a glowing atom with a black background
ALT: a glowing atom with a black background
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Daniel González @danielgc25.bsky.social · 21/11/2024
In summary, our experiments confirm string breaking in (2+1)D both in equilibrium and non-equilibrium. These results nicely complement the very recent observations of similar phenomena with superconducting qubits and trapped ions: arxiv.org/abs/2409.17142 arxiv.org/abs/2410.13815
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Daniel González @danielgc25.bsky.social · 21/11/2024
Finally, we quench these string states and investigate the dynamics of string breaking. We observe a high-order process where the initial string maximally breaks when it has the same energy as the broken string. We characterize this resonance through many-body spectroscopy.
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Daniel González @danielgc25.bsky.social · 21/11/2024
Moreover, strings in (2+1)D can fluctuate between different shapes, and we indeed observe all of them in the states we prepare.
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Daniel González @danielgc25.bsky.social · 21/11/2024
We map out the phase diagram of the gauge theory by preparing the ground state adiabatically. We observe how, as we increase the Rydberg interactions (and thus the confining potential), the probability of the broken string dominates, signalling string breaking in equilibrium.
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Daniel González @danielgc25.bsky.social · 21/11/2024
In the experiment, we can prepare and measure states corresponding to both unbroken and broken string configurations 👇
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Daniel González @danielgc25.bsky.social · 21/11/2024
Here we encode a U(1) gauge theory in a Rydberg atom array, where atom configurations naturally map to particles and strings since: 1) The local (gauge) symmetry emerges from the Rydberg blockade. 2) Long-range Rydberg interactions give rise to a confining potential.
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Daniel González @danielgc25.bsky.social · 21/11/2024
These new particles can be detected in particle accelerators, but string breaking was never observed directly. Moreover, simulating the dynamics of this process is very challenging. Both problems can be overcome using quantum simulators with spatio-temporal resolution.
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Daniel González @danielgc25.bsky.social · 21/11/2024
String breaking occurs in gauge theories such as quantum chromodynamics, where quarks are confined into composite objects (e.g. protons), connected by strings of gauge field. When quarks are separated, the energy increases until new particles are created, breaking the string.
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Daniel González @danielgc25.bsky.social · 21/11/2024
Now that the #quantum community is getting back together, I wanted to share here our last project 📃 This was a very nice theory-experiment collaboration, where we used Quera's Rydberg quantum simulator ⚛️ 💻 to observe string breaking 💥 on a (2+1)D lattice gauge theory! arxiv.org/abs/2410.16558
arxiv.org
Observation of string breaking on a (2 + 1)D Rydberg quantum simulator
Lattice gauge theories (LGTs) describe a broad range of phenomena in condensed matter and particle physics. A prominent example is confinement, responsible for bounding quarks inside hadrons such as p...
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Daniel González @danielgc25.bsky.social · 21/11/2024
I want to finish by thanking my amazing collaborators. This was a long and challenging project, and it could not have succeed without their help and support 🫶
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Daniel González @danielgc25.bsky.social · 21/11/2024
Personally, this was a very special project, since I started thinking how to simulate similar gauge theories during my master thesis. During the last decade, Rydberg simulators have developed tremendously, allowing us to bring these theoretical ideas to an experimental reality.
media.tenor.com
a glowing atom with a black background
ALT: a glowing atom with a black background
100
Daniel González @danielgc25.bsky.social · 21/11/2024
In summary, our experiments confirm string breaking in (2+1)D both in equilibrium and non-equilibrium. These results nicely complement the very recent observations of similar phenomena with superconducting qubits and trapped ions: arxiv.org/abs/2409.17142 arxiv.org/abs/2410.13815
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Daniel González @danielgc25.bsky.social · 21/11/2024
Finally, we quench these string states and investigate the dynamics of string breaking. We observe a high-order process where the initial string maximally breaks when it has the same energy as the broken string. We characterize this resonance through many-body spectroscopy.
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Daniel González @danielgc25.bsky.social · 21/11/2024
Moreover, strings in (2+1)D can fluctuate between different shapes, and we indeed observe all of them in the states we prepare.
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Daniel González @danielgc25.bsky.social · 16/11/2024
Hello world! I thought I'd kick off my account here with a life update: I recently moved to Boston, where I will work in the Lukin group at Harvard as a Marie Curie fellow. Let's keep the quantum discussion alive!
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