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SUMMARY:Towards a Spanish LISA Global Fit Pipeline
DTSTART:20240122T150000Z
DTEND:20240122T153000Z
DTSTAMP:20260719T095000Z
UID:indico-contribution-7652@indico.ifae.es
DESCRIPTION:Speakers: Ivan Vilchez (ICE CSIC Barcelona)\n\nAbstract: LISA 
 is a large-class mission of the European Space Agency (ESA) to build a spa
 ce-based gravitational wave observatory. With the mission expected to be f
 ormally adopted by the end of this month and an anticipated launch date of
  2035\, Spain is agreeing to two main contributions to the mission: on the
  hardware side\, the Science Diagnostics Subsystem\; on the ground segment
 \, a global fit data analysis pipeline. In this talk\, I will be focusing 
 on the latter contribution. I will provide a general overview of the LISA 
 mission\, its great scientific potential\, and the unique data analysis ch
 allenges it faces. From there\, I will briefly discuss the currently exist
 ing pipeline prototypes\, and the computational requirements projected fro
 m them. Finally\, I will talk about the current and future data analysis e
 fforts in the budding Spanish LISA collaboration led by our research group
 .\n\nhttps://indico.ifae.es/event/1808/contributions/7652/
LOCATION:Seminar room (IFAE)
URL:https://indico.ifae.es/event/1808/contributions/7652/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Domain walls as seeds for cosmological phase transitions
DTSTART:20240122T133000Z
DTEND:20240122T143000Z
DTSTAMP:20260719T095000Z
UID:indico-contribution-7651@indico.ifae.es
DESCRIPTION:Speakers: Alberto Mariotti (VUB Brussels)\n\nAbstract: Cosmolo
 gical phase transitions are interesting phenomena happening in the early U
 niverse\, having several phenomenological implications. In this talk I wil
 l discuss how the presence of topological defects in the early Universe ca
 n modify the mechanism under which the cosmological phase transitions occu
 r\, acting as impurities which catalyze the phase transition. \nI will foc
 us on the the case of domain walls and how they can affect the electroweak
  phase transition\, employing as an illustrative example the minimal exten
 sion of the SM with a scalar singlet odd under a Z_2 symmetry. I will show
  how to compute the seeded tunneling rate with several techniques\, what a
 re the new properties of the seeded phase transitions\, and the resulting 
 implications for the gravitational wave spectrum.\n\nhttps://indico.ifae.e
 s/event/1808/contributions/7651/
LOCATION:Seminar room (IFAE)
URL:https://indico.ifae.es/event/1808/contributions/7651/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Fundamental Physics and Cosmology with the Einstein Telescope
DTSTART:20240122T093000Z
DTEND:20240122T103000Z
DTSTAMP:20260719T095000Z
UID:indico-contribution-7650@indico.ifae.es
DESCRIPTION:Speakers: Michele Maggiore (Geneva U.)\n\nAbstract: The observ
 ation of gravitational waves by the LIGO/Virgo collaboration has opened a 
 new window\non the Universe. In this decade\, however\, these experiments 
 will reach the limit of their capabilities\,\nand a new generation of grou
 nd-based detectors is being planned. In Europe\, this has led to the\nprop
 osal of the Einstein Telescope. With order of magnitude improvement in the
  sensitivity\, Einstein\nTelescope will explore the depth of the Universe 
 using gravitational waves\, and has the potential of\ntriggering revolutio
 ns in astrophysics\, cosmology and fundamental physics. We will give a bro
 ad\noverview of its capabilities and scientific targets.\n\nhttps://indico
 .ifae.es/event/1808/contributions/7650/
LOCATION:Seminar room (IFAE)
URL:https://indico.ifae.es/event/1808/contributions/7650/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Active Learning for Gravitational Wave modelling
DTSTART:20240122T110000Z
DTEND:20240122T114500Z
DTSTAMP:20260719T095000Z
UID:indico-contribution-7974@indico.ifae.es
DESCRIPTION:Speakers: Tomas Andrade (Barcelona U)\n\nAbstract: As a new er
 a of gravitational wave detections rapidly unfolds\, the importance of hav
 ing accurate models for their signals becomes increasingly important. The 
 best model for GW are the fully-fledged simulations of General Relativity\
 , although their daunting cost makes it prohibitive to perform data analys
 is. To alleviate this\, the community has developed a variety of approxima
 te models\, which upon calibration from the detailed simulations are accur
 ate and fast to evaluate. This program requires the exploration of a large
  and complex parameter space with expensive simulations. We will argue tha
 t Active Learning\, a data-driven strategy to explore parameter space with
  costly experiments\, is particularly relevant in this scenario\, by reduc
 ing computational cost\, time and human bias.\n\nhttps://indico.ifae.es/ev
 ent/1808/contributions/7974/
LOCATION:Seminar room (IFAE)
URL:https://indico.ifae.es/event/1808/contributions/7974/
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