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SUMMARY:Quantum Gravity Corrections: From Background Dynamics to Cosmologi
 cal Perturbations
DTSTART;VALUE=DATE-TIME:20261108T093000Z
DTEND;VALUE=DATE-TIME:20261108T100000Z
DTSTAMP;VALUE=DATE-TIME:20261023T141910Z
UID:indico-contribution-2938@indico.itp.ac.cn
DESCRIPTION:Speakers: Hongguang Liu (Westlake University)\nQuantum-gravity
  models often provide effective background dynamics\, while cosmological o
 bservables depend on the dynamics of inhomogeneous perturbations. I will d
 iscuss a Hamiltonian framework for bridging this gap. Requiring consistent
  local evolution strongly constrains how a modified homogeneous or symmetr
 ic dynamics can be completed into a spatial theory. The resulting Hamilton
 ian determines not only the cosmological background but also its scalar an
 d tensor response.\nI will discuss how relational scale setting and non-pe
 rturbative renormalization can provide quantum input for this effective dy
 namics\, and how the same Hamiltonian framework connects it to cosmologica
 l perturbations and correlation functions.\n\nhttps://indico.itp.ac.cn/eve
 nt/417/contributions/2938/
LOCATION:
URL:https://indico.itp.ac.cn/event/417/contributions/2938/
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