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DTSTART;TZID=Europe/Madrid:20251201T150000
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DTSTAMP:20260415T041820
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UID:23469-1764601200-1764604800@www.ift.uam-csic.es
SUMMARY:Seminar: Quantum simulation of lattice gauge theories with Rydberg atom arrays
DESCRIPTION:Speaker: Daniel González Cuadra (IFT) \nVenue&Time: Red Room / 15:00 \nAbstract: 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 protons or neutrons. When quark-antiquark pairs are separated\, the energy stored in the string of gluon fields connecting them grows linearly with their distance\, until there is enough energy to create new pairs from the vacuum and break the string. While such phenomena are ubiquitous in LGTs\, simulating the resulting dynamics is a challenging task. In this talk\, I will report the observation of string breaking in synthetic quantum matter using a programmable quantum simulator based on neutral atom arrays [Nature 642\, 321–326 (2025)]. I will first show how a (2+1)D LGT with dynamical matter can be efficiently implemented when the atoms are placed on a Kagome geometry\, with a local U(1) symmetry emerging from the Rydberg blockade\, while long-range Rydberg interactions naturally give rise to a linear confining potential between pairs of charges. In the experiment\, we probe string breaking in equilibrium by adiabatically preparing the ground state of the atom array in the presence of defects\, distinguishing regions within the confined phase dominated by fluctuating strings or by broken string configurations. Finally\, by harnessing local control over the atomic detuning\, we quench string states and observe string breaking dynamics exhibiting a many-body resonance phenomenon. As an outlook\, I will present a roadmap to further explore phenomena in high-energy physics using programmable quantum simulators.
URL:https://www.ift.uam-csic.es/event/seminar-quantum-simulation-of-lattice-gauge-theories-with-rydberg-atom-arrays-2/
LOCATION:IFT Seminar Room/Red Room\, Instituto de Física Teórica (IFT) -C. Nicolás Cabrera\, 13-15\, Fuencarral-El Pardo\, Madrid\, 28049\,\, Spain
CATEGORIES:Scientific activities,Seminars
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