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VERSION:2.0
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BEGIN:VEVENT
SUMMARY:Higgs-Dilaton inflation in Einstein-Cartan gravity
DTSTART:20220714T143000Z
DTEND:20220714T163000Z
DTSTAMP:20260725T102149Z
UID:71e86497-8b5a-4a0b-9289-d1d14f7452f0
SEQUENCE:2
CREATED:20220712T084832Z
DESCRIPTION:Abstract:Gravity can appear in different incarnations\, from t
 he commonly used metric formulation to the Palatini\, teleparallel and Ein
 stein-Cartan ones. Despite the difference in the choice of the fundamental
  degrees of freedom\, all these formulations are equivalent in pure gravit
 y scenarios\, leading to the same equations of motion\, therefore being de
 void of any observational consequence. However\, this equivalence is broke
 n in the presence of a non-minimal coupling to matter\, such as the Standa
 rd Model Higgs.Such coupling opens the possibility for the Higgs field to 
 be responsible for the inflationary phase in the early universe. In this t
 alk\, I will discuss the phenomenology of Higgs-Inflation in the context o
 f Einstein-Cartan gravity\, together with its scale-invariant version\, th
 e so-called Higgs-Dilaton model. In particular\, I will show how the Einst
 ein-Cartan formulation can endow a rich phenomenology\, due to the unavoid
 able presence of extra gravitational operators\, and interactions with fer
 mionic matter. In a second part\, I will discuss how this scenario can acc
 ommodate the formation of scalar compact objects in the early universe and
  the possible emission of gravitational waves.
LAST-MODIFIED:20220712T084851Z
LOCATION:Sala de Seminários do DF\,  Pavilhão de Física\, 2º piso
URL:http://df.vps.tecnico.ulisboa.pt/pt/eventos/higgs-dilaton-inflation-in
 -einstein-cartan-gravity/
X-ALT-DESC;FMTTYPE=text/html:<p data-block-key="2x7jo"><b>Abstract:</b><br
 />Gravity can appear in different incarnations\, from the commonly used me
 tric formulation to the Palatini\, teleparallel and Einstein-Cartan ones. 
 Despite the difference in the choice of the fundamental degrees of freedom
 \, all these formulations are equivalent in pure gravity scenarios\, leadi
 ng to the same equations of motion\, therefore being devoid of any observa
 tional consequence. However\, this equivalence is broken in the presence o
 f a non-minimal coupling to matter\, such as the Standard Model Higgs.</p>
 <p data-block-key="4dnn8"><br/>Such coupling opens the possibility for the
  Higgs field to be responsible for the inflationary phase in the early uni
 verse. In this talk\, I will discuss the phenomenology of Higgs-Inflation 
 in the context of Einstein-Cartan gravity\, together with its scale-invari
 ant version\, the so-called Higgs-Dilaton model.<br/><br/> In particular\,
  I will show how the Einstein-Cartan formulation can endow a rich phenomen
 ology\, due to the unavoidable presence of extra gravitational operators\,
  and interactions with fermionic matter. In a second part\, I will discuss
  how this scenario can accommodate the formation of scalar compact objects
  in the early universe and the possible emission of gravitational waves.</
 p>
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