Conveners
Planary
- Mateusz Bawaj (University of Perugia)
Planary
- Tommaso Chiarusi (INFN - Sezione di Bologna)
Planary
- Tommaso Chiarusi (INFN - Sezione di Bologna)
Planary
- Andrzej Krolak (Polish Academy of Sciences)
Planary
- Marek Szczepanczyk (University of Warsaw)
Description
PAS Rome meeting 2026
Monday Mar 16, 2026 11:00 Rome
https://us02web.zoom.us/j/84181538708?pwd=Lrj7Y85zXfET8rAVyBWOfwbpXrMTAC.1
PAS Rome meeting 2026
Tuesday Mar 17, 2026 09:00 Rome
https://us02web.zoom.us/j/88017569466?pwd=faSrRvCSqF1rNPh3g2536MuEKtJmFI.1
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Andrzej Krolak (Polish Academy of Sciences)16/03/2026, 11:00Invited talk
Gravitational waves, predicted over a century ago by Einstein’s theory of General Relativity, have become a powerful observational tool for probing the Universe. I will briefly introduce the physical nature of gravitational waves and the interferometric methods used to detect them. I shall present the scientific results from the recently completed fourth observation run of the LIGO, Virgo, and...
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Tomasz Bulik16/03/2026, 11:30Invited talk
Compact object binaries are the first and so ar the only gravitational wave sources discovered today. Therefore they are a certain target for ET and they will constitute a large fraction of data that will be gathered be this fantastic new tool. I will describe what we know about the population of these objects and the questions that astronomers face when analyzing them. These binaries in the...
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Jan Harms16/03/2026, 12:00Invited talk
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Alessio Rocchi (INFN Roma Tor Vergata)16/03/2026, 12:30Invited talk
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Mikhail Korobko16/03/2026, 14:00Talk
Squeezed light has become a baseline quantum technology in gravitational-wave detectors, delivering routine quantum-noise reduction and driving the success of recent astrophysical observations. Next-generation observatories, including the Einstein Telescope, are being designed with squeezed-light operation as a core part of the sensitivity concept: key subsystems are optimized for...
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Anne Daumas16/03/2026, 14:30Talk
The Virgo experiment, alongside the American LIGO and Japanese KAGRA detectors, forms an international network of gravitational wave detectors currently in operation. The Virgo detector is a three-kilometer-long double-recycled Fabry Perot Michelson interferometer built near Pisa, Italy. Challenges related to this current optical configuration of Virgo has lead to a redesign of the...
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Mario Martinez (ICREA-IFAE Barcelona)16/03/2026, 14:50Talk
Building on the successful four-year operation of the first instrumented baffle installed on the Input Mode Cleaner (IMC) mirror of Virgo in 2021, IFAE has developed two new large instrumented baffles for deployment in the main arms of the detector. Each baffle, approximately 80 cm in diameter and equipped with 120 photosensors, will be installed at the entrance of the input mirror towers. The...
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Michele Arcangelo Dicorato, Nicolo Baldicchi (Università degli studi di Perugia)16/03/2026, 15:10Talk
The next generation of interferometric gravitational wave detectors faces limitations due to excessive thermal noise in key optical and suspension systems, particularly below 10 Hz. To address this issue, cryogenic solutions are being adopted. Dedicated studies are focusing on the creation of cryogenic payloads with quasi-monolithic suspensions, identifying suitable materials for substrates,...
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Luca Craighero (Università di Torino)16/03/2026, 16:00Talk
Crystalline Silicon cooled to cryogenic temperatures is a promising material for next-generation gravitational-wave detector optics. Crystalline Silicon has low mechanical loss, so it enables low thermal noise at low temperatures, and it also has two points of zero thermal expansion at 123 K and 10 K and high thermal conductivity, so it does not get easily deformed by thermal loads. One of the...
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Maxime Vincent (APC CNRS)16/03/2026, 16:20Talk
The French contribution to the LISA Consortium, specifically on the instrumental aspect, centers on developing optical ground support equipment (OGSE) for the validation of LISA's performance before it takes flight.
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More specifically, one of the tasks of the French community is to test and validate the performance of the Interferometric Detection System (IDS).
The IDS Test Set-Up is... -
Huw Haigh16/03/2026, 16:40Talk
We present a study of deep convolutional autoencoders applied to anomaly detection of GW signals. This initial work focuses on short-duration signals (< 2s), corresponding to mergers that involve, or form, intermediate mass black holes. Such burst signals are notably difficult to disentangle from both background noise and glitches that may occur during data taking. We utilise the simulated...
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Dr Amedeo Romagnolo (University of California, San Diego)17/03/2026, 09:00Talk
The formation of black holes, especially those seen in Gaia binaries and gravitational wave events, is still not fully understood due to gaps in our knowledge of how massive stars evolve. Stellar winds play a key role in mass loss and significantly affect these evolutionary paths. However, existing models are hampered by outdated methods and considerable differences in their underlying...
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Dr Alejandro Casallas Lagos (University of Warsaw)17/03/2026, 09:20Talk
Galactic core-collapse supernovae (CCSNe) are highly anticipated multi-messenger events, providing a natural laboratory where neutrinos, photons, and gravitational waves (GWs) can be observed together. Numerical simulations indicate that CCSN GW signals are inherently nondeterministic; however, they consistently exhibit a promising observable: the High-Frequency Feature (HFF), seen in...
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Sudhagar Suyamprakasam17/03/2026, 09:40Talk
An asymmetric rotating neutron star may emit quasi-monochromatic gravitational waves. Detecting such signals with second-generation detectors requires long observation times due to their low GW amplitudes. If the signal is also microlensed, the lens's mass temporarily magnifies the signal amplitude, aiding detection and providing a distinct microlensing pattern. We explore the prospects for...
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Alessandro Martini (Virgo)17/03/2026, 10:00Talk
Minimally modelled searches play a critical role in the detection of short-duration gravitational-wave transients whose morphologies are poorly constrained by existing waveform models. Among these approaches, the Coherent WaveBurst (cWB) algorithm has proven to be a robust and versatile tool for burst searches, enabling the coherent detection and reconstruction of gravitational-wave signals...
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Dounia Nanadoumgar Lacroze17/03/2026, 11:00Talk
The suspended end mirror in the Input Mode Cleaner (IMC) cavity of the Advanced Virgo Plus interferometer was equipped with an enhanced baffle model in May 2021. This baffle is instrumented with active sensors next to the test mass to enable the monitoring of the scattered light in the cavity. We assess the performance and stability of the instrument after 4 years of operation. We study the...
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Mariusz Suchenek17/03/2026, 11:20Talk
Gravitational-wave observatories increasingly rely on sophisticated environmental sensor arrays to characterize and mitigate noise sources that couple into interferometric detector measurements. As detectors such as Advanced LIGO and Virgo continue to reach higher sensitivities, a comprehensive set of noise-reduction strategies ranging from passive isolation to active suppression is required...
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François Gautier (Laboratoire d'Acoustique de l'Université du Mans, UMR CNRS 6613)17/03/2026, 11:40Talk
Among the noises affecting GW detectors, Newtonian noise of seismic or acoustic origin could limit sensitivity at low frequencies, below a few tens of Hz. This presentation focuses on modeling Newtonian noise of acoustic origin, resulting from technical noises in caverns and experimental halls. A significant contribution to this technical noise is specifically linked to the operation of the...
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Andrea Svizzeretto17/03/2026, 12:00Talk
This work explores the use of Deep Reinforcement Learning (DRL) to optimize the locking procedure of high-finesse Fabry–Perot cavities, key components of gravitational-wave detectors. Improving and speeding up the lock acquisition process helps increase the detector’s duty cycle. This task is challenging due to nonlinear effects such as ring-down and resonance drifts, which distort the optical...
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