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SUMMARY:Niccolò Cribiori (KU Leuven)
DTSTART:20250715T130000Z
DTEND:20250715T140000Z
DTSTAMP:20260423T040329Z
UID:QTFMS/11
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/QTFMS/11/">S
 cale separation\, how (not)?</a>\nby Niccolò Cribiori (KU Leuven) as part
  of Quantum Theories of Fields\, Matter\, and Strings\n\n\nAbstract\nThe e
 xistence of a separation of scales between the four observed spacetime dim
 ensions and the yet unobserved additional ones is a minimal requirement fo
 r (string) phenomenology. However\, explaining the origin of this property
  remains an open problem. In this talk\, I will explore both sides of this
  issue. First\, I will present general bottom-up arguments suggesting that
  scale separation is challenging to achieve\, if not impossible\, in broad
  classes of models. Then\, I will discuss top-down constructions offering 
 potential avenues for scale separation. In either direction\, this will de
 monstrate how\, among all the hierarchies in nature\, scale separation is 
 one for which concrete progress may be within reach.\n
LOCATION:https://researchseminars.org/talk/QTFMS/11/
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