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SUMMARY:Gravitational Sommerfeld Effects: Framework and Applications
DTSTART:20261007T131500Z
DTEND:20261007T143000Z
DTSTAMP:20261021T124300Z
UID:indico-event-17466@indico.math.cnrs.fr
CONTACT:cecile@ihes.fr
DESCRIPTION:Speakers: Chia-Hsien Shen (National Taiwan University\, Taipei
 )\n\nSéminaire Amplitudes et Gravitation sur l'Yvette (IHES/IPhT)\nSommer
 feld effects describe long-distance corrections to radiation emitted by a 
 short-distance source. They play an important role in atomic physics and d
 ark matter phenomenology\, but the same mechanism also arises in gravitati
 onal-wave radiation from compact binaries. In this talk\, I will develop a
  systematic framework for gravitational Sommerfeld effects by combining wo
 rldline effective field theory with black hole perturbation theory. A key 
 advantage of this framework is that it organizes high-order perturbative c
 alculations without requiring any nontrivial loop integration\, allowing u
 s to compute the waveform to tenth order in the perturbative expansion and
  beyond. The formulation also reveals an exact connection between the radi
 ation waveform and Compton scattering\, as well as the underlying structur
 es of the classical renormalization group of the multipoles and tidal Love
  numbers. I will conclude by discussing how these results can be incorpora
 ted into waveform resummation models for gravitational-wave signals. This 
 talk is based on arXiv:2604.14112 with Chih-Hao Chang and Zihan Zhou\, and
  work in progress.\n \nPour être informé des prochains séminaires vous
  pouvez vous abonner à la liste de diffusion en écrivant un mail à symp
 a@listes.math.cnrs.fr avec comme sujet: "subscribe seminaire_physique PREN
 OM NOM"(indiquez vos propres prénom et nom) et laissez le corps du messag
 e vide.\n\nhttps://indico.math.cnrs.fr/event/17466/
LOCATION:Amphithéâtre Léon Motchane (IHES)
URL:https://indico.math.cnrs.fr/event/17466/
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