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Peter Švihra11/05/2026, 09:15Division of Elementary Particle PhysicsTalk
This talk reviews the development of 4H-SiC Low Gain Avalanche Detectors as a next step in wide bandgap sensor technology. A central part of the contribution is the development and evaluation of the first segmented LGAD structures produced in 4H-SiC. The presentation will highlight progress on segmentation design, charge-sharing behaviour, and early timing studies, supported by initial TCT and...
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Dr Taj Jankovič (Institute of Physics of the Czech Academy of Sciences)11/05/2026, 09:30Division of Elementary Particle PhysicsTalk
Quasi-periodic eruptions (QPEs) are a recently discovered class of repeating X-ray flares from galactic nuclei hosting supermassive black holes. Their physical origin remains uncertain, but repeated collisions between a star and an accretion disc have emerged as a promising explanation. In this scenario, each disc crossing drives shocks, launches dense outflows, and produces radiation that may...
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Christian Northe (Czech Academy of Sciences)11/05/2026, 09:45Division of Elementary Particle PhysicsTalk
Present theoretical predictions for the entanglement entropy through topological defects are violated in numerical simulations of critical systems. In this talk, I introduce a new formalism for the preparation of reduced density matrices in the presence of topological defects, and emphasize the role of defect networks with which they can be dressed. Grouplike and duality defects are considered...
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Helena Lefebvre (Extreme Light Infrastructure Beamlines)11/05/2026, 10:00ELITalk
Laser-driven ion accelerators are an emerging technology capable of producing ultra-short, high-intensity particle beams with broad energy spectra, opening new opportunities in physics, materials science, and medical applications. Within this context, the ELIMAIA–ELIMED beamline is designed to transport, shape, and deliver laser-accelerated ion beams with controlled parameters for...
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Patrik Čechvala (Institute of Physics, Czech Academy of Sciences)11/05/2026, 10:15Division of Elementary Particle PhysicsTalk
An important method in gamma-ray astronomy is observation using Imaging Atmospheric Cherenkov Telescopes (IACTs). IACTs are large-diameter, ground-based reflective telescopes equipped with sensitive cameras. The telescopes detect the faint flashes of Cherenkov light emitted during the development of extensive air showers, which are initiated by high-energy cosmic gamma-ray photons interacting...
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William Barker (FZU)11/05/2026, 10:45Division of Elementary Particle PhysicsTalk
Particle dark matter, along with many ultraviolet scenarios, suggest that additional low-energy degrees of freedom remain to be discovered. Theories of new physics may be understood as statistical models, for which the Lagrangian couplings are model parameters. The net worth of a theory is determined by its Bayesian evidence: the likelihood of precision cosmology data is multiplied by the...
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Sitender Kashyap11/05/2026, 11:00Division of Elementary Particle PhysicsTalk
Scattering amplitudes in string theory describe how strings interact, but even the simplest cases can be subtle in modern formulations. In this talk, I will revisit the two-point function for closed strings in the pure spinor approach, where a naïve extension of open-string methods fails.
We will show how this issue can be resolved by carefully implementing BRST symmetry, leading to a...
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Souvik Priyam Adhya11/05/2026, 11:15Division of Elementary Particle PhysicsTalk
Probing the earliest stages of high-energy collisions is essential for understanding the formation and evolution of strongly interacting matter. In this work, we investigate initial-state effects in relativistic collider environments through the interplay of parton energy loss (quenching) and diffraction. These results offer a novel pathway to constrain parton densities, saturation phenomena,...
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Erick Munive Villa (CEICO - FZU, Institute of Physics of the Czech Academy of Sciences)Division of Elementary Particle PhysicsPoster
We investigate the multiscale structure and dynamics of ultralight dark matter (ULDM) using a combination of spectral numerical methods and adaptive large-scale simulations within the Schrödinger–Poisson (SP) framework and its extensions. At small scales, we employ Fourier-based time-splitting techniques to resolve interference-driven dynamics and solitonic structure formation in scalar field...
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