Seminars-iihe

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April 2026

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IIHE Invited seminar: Fiber optic hydrophones for acoustic neutrino detection - Friday April 17 at 2PM
by TOSCANO Simona 17 Apr '26

17 Apr '26

Dear all, This week we have the pleasure of hosting Dr. Ernst-Jan Buis from Nikhef. Dr. Buis will discuss his research work and progress on fiber-optic hydrophones for acoustic detection of UHE neutrinos. The seminar will take place in the J. Sacton Room this Friday, April 17th, at 2:00 PM. Please find further details below: ********************************************* Title: Fiber optic hydrophones for acoustic neutrino detection Abstract: The scientific potential for detecting cosmic neutrinos with energies at or above the GZK cut-off—the energy limit for cosmic rays due to interactions with the cosmic microwave background—has been extensively discussed in the literature. The recent observation of a very high-energy event by the KM3NeT telescope has further fueled this discussion, as it may represent the first detection of a GZK neutrino. However, despite this remarkable result, the extremely low expected flux of ultra-high-energy neutrinos (Eν > 1018 eV) clearly indicates that their detection will require a telescope with an effective volume exceeding 100 km3. Acoustic detection offers a promising approach for observing these ultra-high energy cosmic neutrinos. The sound waves generated by their energy deposition in the deep sea can propagate over many kilometers with little attenuation, making it feasible to instrument a vast volume of water for neutrino detection. Achieving this requires the development of acoustic detection technologies capable of supporting a large-scale, deep-sea sensor network. Fiber-optic hydrophone technology stands out as a promising candidate for such a network, combining the necessary sensitivity to detect the faint acoustic signals from neutrino interactions with the potential for cost-effective large-scale deployment. Nikhef is actively developing this fiber-optic hydrophone technology to meet the sensitivity and operational requirements of deep-sea environments. In this presentation, I will report on the progress of the hydrophone development and outline the plans toward a future acoustic neutrino telescope — opening a window to explore the universe beyond the GZK horizon. ************************************** <https://indico.iihe.ac.be/event/2461/> [indico_square.png] IIHE Invited seminar: Fiber optic hydrophones for acoustic neutrino detection<https://indico.iihe.ac.be/event/2461/> indico.iihe.ac.be<https://indico.iihe.ac.be/event/2461/> As always, I look forward to a well-attended seminar and to seeing many of you on Friday! Simona. Dr. Simona Toscano (she / her / hers) Université Libre de Bruxelles Inter-university Institute for High Energies (IIHE) Service de physique de particules élémentaires, ULB - CP 230 Boulevard du Triomphe - 1050 Bruxelles (Belgium) Office : G.0.16 tel: +32.(0)2.629.3216 Email: stoscano(a)ulb.be<mailto:stoscano@vub.ac.be> or toscano(a)icecube.wisc.edu<mailto:toscano@icecube.wisc.edu> [PastedGraphic-10.png]

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IIHE Invited seminar: Quantum Sensing for (low and high energy) particle physics
by Simona Toscano 01 Apr '26

01 Apr '26

Dear all, This week we have the pleasure of hosting Prof. Michael Doser from CERN. Prof. Doser will talk about quantum sensing, with a particular focus on applications in particle physics. The seminar will take place in the J. Sacton Room this Friday, April 3rd, at 2:00 PM. Please find further details below: ********************************************* Title: Quantum Sensing for (low and high energy) particle physics Abstract: The seminar will provide a glimpse of some elements of the rapidly evolving field of quantum sensing, with a particular focus on applications in particle physics. Specific approaches involving quantum systems, such as low-dimensional systems or manipulations of ensembles of quantum systems, hold great promise for improving high-energy particle physics detectors, particularly in areas like calorimetry, tracking, and timing. The use of quantum sensors for high-precision measurements, such as precision spectroscopy of novel atomic, molecular or ionic systems, as well as the development of new quantum sensors based on superconducting circuits, ion and particle traps, crystals, and nanomaterials, are equally relevant for low energy measurements that rely on high energy physics infrastructures. Significant advances and improvements in existing or future quantum technologies will be necessary to address such topics related to the dark universe, the detection of relic neutrinos, precision tests of symmetries and of the standard model and probing general foundational issues in physics. The seminar will thus also feature discussions of the Quantum Sensing Initiatives at CERN and the ECFA R&D Roadmap on Quantum Sensing and Advanced Technologies and will discuss options for future collaborations in the context of the recently approved DRD5 implementation of the roadmap. Short bio: Michael Doser is an emeritus senior research physicist working at CERN, the European Centre for Nuclear Research in Geneva, Switzerland. He founded (in 2012) and led (until 2022) the AEgIS experiment working with antimatter atoms, and continues to focus on working with antimatter (formation of anti-atoms, study of matter-antimatter asymmetry, measurement of the gravitational interaction between matter and antimatter, exotic atom and ion spectroscopy and nuclear physics), using it either as a tool or as an object of study itself. In 2022, he was tasked with exploring the opportunities provided by quantum sensing for particle physics and since 2024 is spokesperson of a global collaboration (the DRD5 collaboration) of 120 institutes carrying out R&D on a wide range of quantum sensor families with the goal of developing these for fundamental physics. He is also editor of Physics Letters B since 20 years. ************************************** https://indico.iihe.ac.be/event/2460/ IIHE Invited seminar: Quantum Sensing for (low and high energy) particle physics indico.iihe.ac.be We very much look forward to a well-attended seminar and to seeing many of you on Friday! Simona. Dr. Simona Toscano (she / her / hers) Université Libre de Bruxelles Inter-university Institute for High Energies (IIHE) Service de physique de particules élémentaires, ULB - CP 230 Boulevard du Triomphe - 1050 Bruxelles (Belgium) Office : G.0.16 tel: +32.(0)2.629.3216 Email: stoscano(a)ulb.be <mailto:stoscano@vub.ac.be> or toscano(a)icecube.wisc.edu <mailto:toscano@icecube.wisc.edu>

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