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X-WR-CALNAME:Erlangen Centre for Astroparticle Physics
X-ORIGINAL-URL:https://ecap.nat.fau.de
X-WR-CALDESC:Events for Erlangen Centre for Astroparticle Physics
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DTSTART;TZID=Europe/Berlin:20250508T130000
DTEND;TZID=Europe/Berlin:20250508T140000
DTSTAMP:20260518T101825
CREATED:20250502T122359Z
LAST-MODIFIED:20250516T160657Z
UID:5719-1746709200-1746712800@ecap.nat.fau.de
SUMMARY:ECAP Seminar: Oliver Friedrich\, LMU Sternwarte
DESCRIPTION:Forcing neutrinos to obey the holographic principle\nGravity does not like the vast amounts of states present in QFT\, and\nquantum gravitational effects are expected to drastically reduce the\ndimension of the QFT Hilbert space. This is e.g. achieved by “operator\ndressing”\, which changes the commutation relations of quantum fields.\nIn https://arxiv.org/abs/2402.11016 we build a model for neutrinos\,\nthat incorporates this dressing and fixes it such that neutrinos obey\na cosmic entropy bound. A key consequence of this construction is that\nparticles scatter in the vacuum. This e.g. implies a finite mean free\npath of cosmic neutrinos. We confront this result with observed\nneutrino emissions and find that the holographic principle is\npotentially in tension with current neutrino data.
URL:https://ecap.nat.fau.de/index.php/event/ecap-seminar-2025-05-08-oliver-friedrich/
LOCATION:ECAP Laboratory\, 00.061\, Nikolaus-Fiebiger-Str. 2\, Erlangen\, 91058\, Germany
CATEGORIES:Seminar
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DTSTART;TZID=Europe/Berlin:20250522T130000
DTEND;TZID=Europe/Berlin:20250522T140000
DTSTAMP:20260518T101825
CREATED:20250507T133938Z
LAST-MODIFIED:20250519T122758Z
UID:5728-1747918800-1747922400@ecap.nat.fau.de
SUMMARY:ECAP Seminar: Philipp Windischhofer\, U Chicago
DESCRIPTION:Exploring the Universe at the Highest Energies: when Particle Physics and Astronomy meet\nHigh-energy neutrinos propagating over cosmological distances are the ideal messenger particles for astrophysical phenomena\, but the neutrino landscape above 10 PeV is still mostly unexplored. At these extreme energies\, neutrinos can image the most extreme objects in remote corners of our cosmos and help access fundamental physics at extremely short distances.In this talk\, I will show how we are presently constructing the Radio Neutrino Observatory in Greenland\, the largest-ever terrestrial neutrino detector\, and how the century-old physics of electrodynamics plays a central role in its operation. Combining ideas from particle collider instrumentation with high-performance computing\, we will see what it takes to fully exploit the science potential of this unique instrument and thereby extend neutrino astronomy into the regime of the exaelectronvolt.
URL:https://ecap.nat.fau.de/index.php/event/ecap-seminar-2025-05-22-philipp-windischhofer/
LOCATION:Physikum\, Hörsaal HF\, Staudtstr. 5\, Erlangen\, 91058\, Germany
CATEGORIES:Seminar
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