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UID:5769@i2m.univ-amu.fr
DTSTART;TZID=Europe/Paris:20230126T170000
DTEND;TZID=Europe/Paris:20230126T183000
DTSTAMP:20241120T200213Z
URL:https://www.i2m.univ-amu.fr/evenements/normalizing-renormalization-2/
SUMMARY:Sophie Mutzel (CPT\, AMU): Normalizing renormalization (2). Postpon
 ed\, date TBA
DESCRIPTION:Sophie Mutzel: Renormalization is one of the most powerful conc
 eptual frameworks in theoretical physics. Renormalization was first introd
 uced as a systematic tool for subtracting ultraviolet divergences in pertu
 rbative quantum field theory at the end of the 1940s. The pioneering work 
 of Kenneth Wilson gave it a physical meaning and tied the relation to stat
 istical physics. His work dramatically changed the way we think about quan
 tum field theories and earned him the Nobel Prize in 1982. The key idea of
  the renormalization group is that phenomena at different scales relate to
  one another. The theoretical framework often causes confusion among stude
 nts attending quantum field theory classes (including myself). Here\, I wi
 ll attempt to „normalize renormalization“: I start by a general discus
 sion of „how we do physics“ and introduce some prerequisites needed in
  quantum field theory. I will then apply the algorithm of „doing physics
 “ to quantum field theories which leads us to the renormalization group 
 equations. I will focus on a specific „regularization scheme“\, namely
  lattice regularization\, which naturally provides a momentum cutoff. If t
 ime permits it\, I will introduce the concept of perfect actions\, which a
 re lattice actions whose predictions agree with those of the continuum act
 ion\, and this independently whether the lattice is fine or coarse.\n\n&nb
 sp\;\n\n\n\nLe séminaire des doctorant⋅es de l'I2M et du CPT à Luminy 
 regroupe chaque semaine les doctorant⋅es du site autour d'un exposé plu
 s ou moins (in)formel\, dans un cadre convivial. Il est évidemment ouvert
  aux étudiant⋅es de master et aux doctorant⋅es d'autres laboratoires.
 \n\nC'est au rez-de-chaussée du bâtiment de « l'ancienne BU »\, dans l
 a salle « Séminaire 2 » (au fond à gauche en sortant de l'escalier si 
 vous venez de l'étage\, au fond à droite si vous entrez par le rez-de-ch
 aussée). Attention : l'entrée dans le labo nécessite un badge. En cas d
 e souci (de type : être bloqué⋅e dehors)\, appeler le 04 91 26 95 91.
ATTACH;FMTTYPE=image/jpeg:https://www.i2m.univ-amu.fr/wp-content/uploads/2
 022/09/image-seminaire-doctorants-i2m-cpt-Luminy.jpg
CATEGORIES:Séminaire,Rencontres doctorant⋅es I2M-CPT
LOCATION:I2M Luminy - Ancienne BU\, Salle Séminaire2 (RdC)\, 163 Avenue de
  Luminy\, 13009 Marseille\, France\, 
X-APPLE-STRUCTURED-LOCATION;VALUE=URI;X-ADDRESS=163 Avenue de Luminy\, 1300
 9 Marseille\, France\, ;X-APPLE-RADIUS=100;X-TITLE=I2M Luminy - Ancienne B
 U\, Salle Séminaire2 (RdC):geo:0,0
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