Daniel González

Daniel González

@danielgc25.bsky.social

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

167 followers153 following23 posts

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Daniel González
@danielgc25.bsky.social

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.orgObservation of string breaking on a (2 + 1)D Rydberg quantum simulatorLattice 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...
Daniel González
@danielgc25.bsky.social

Still one week to apply!

Daniel González@danielgc25.bsky.social

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.comGonzález-Cuadra Group @ IFT - Open positionsPhD position in Quantum Algorithms for High-Energy Physics (currently open)

Daniel González reposted

Leah Stokes
@leahstokes.bsky.social

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.

Daniel González reposted

The Hilbert Space Post
@hilbertspacepost.bsky.social

Replying to @hilbertspacepost.bsky.social

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.orgError-corrected fermionic quantum processors with neutral atomsMany-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...
Daniel González
@danielgc25.bsky.social

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 🤞🏼

John Preskill@preskill.bsky.social

I am very proud of our new paper on simulations of scattering processes in (1+1)-dimensional quantum field theory. All the hard work was done by my co-authors Raghav Jha, Ash Milsted, Dominik Neuenfeld, and Pedro Vieira. arxiv.org/abs/2411.13645

arxiv.orgReal-Time Scattering in Ising Field Theory using Matrix Product StatesWe study scattering in Ising Field Theory (IFT) using matrix product states and the time-dependent variational principle. IFT is a one-parameter family of strongly coupled non-integrable quantum field...
Daniel González
@danielgc25.bsky.social

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.orgObservation of string breaking on a (2 + 1)D Rydberg quantum simulatorLattice 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...
View full thread
Daniel González
@danielgc25.bsky.social

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.

Daniel González
@danielgc25.bsky.social

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.orgObservation of string breaking on a (2 + 1)D Rydberg quantum simulatorLattice 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...
View full thread
Daniel González
@danielgc25.bsky.social

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.

Daniel González
@danielgc25.bsky.social

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.orgObservation of string breaking on a (2 + 1)D Rydberg quantum simulatorLattice 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...
View full thread
Daniel González
@danielgc25.bsky.social

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.

Daniel González
@danielgc25.bsky.social

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.orgObservation of string breaking on a (2 + 1)D Rydberg quantum simulatorLattice 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...
View full thread
Daniel González
@danielgc25.bsky.social

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.

Daniel González
@danielgc25.bsky.social

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.orgObservation of string breaking on a (2 + 1)D Rydberg quantum simulatorLattice 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...
Daniel González
@danielgc25.bsky.social

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.

Daniel González
@danielgc25.bsky.social

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.

Daniel González
@danielgc25.bsky.social

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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