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UID:29@gravity.physik.fau.de
DTSTART;TZID=Europe/Berlin:20221109T133000
DTEND;TZID=Europe/Berlin:20221109T150000
DTSTAMP:20230124T121108Z
URL:https://www.gravity.physik.fau.de/events/a-brief-review-of-loop-quantu
 m-black-hole-models-dr-cong-zhang-fau/
SUMMARY:A brief review of loop  quantum black hole models (Dr. Cong Zhang\,
  FAU)
DESCRIPTION:We consider the loop quantum theory of the spherically symmetri
 c model of gravity coupled to Gaussian dust fields\, where the Gaussian du
 st fields provide a material reference frame of the space and time to depa
 rameterize gravity. This theory\, used to study the quantum features of th
 e spherically symmetric black hole\, is constructed based on a 1-dimension
 al lattice $gammasubsetmathbb R$. Taking advantage of the path integral fo
 rmulation\, we investigate the quantum dynamics and obtain an effective ac
 tion. With this action\, we get an effective continuous description of thi
 s quantum lattice system which is not the same as the one described by the
  effective Hamiltonian used in literature i.e. the classical Hamiltonian w
 ith the holonomy correction. It turns out that the Hamiltonian derived in 
 this paper returns that used in literature only for macro black holes\, si
 nce the lattice $gamma$ is required to be sufficiently fine. Indeed\, it i
 s necessary to propose this fine-grained lattice structure in order to wel
 l describe the underlying lattice theory by the continuous description.
CATEGORIES:Group Seminar
LOCATION:SR 02.729\, Staudtstraße 7/B2\, Erlangen\, 91058\, Germany
X-APPLE-STRUCTURED-LOCATION;VALUE=URI;X-ADDRESS=Staudtstraße 7/B2\, Erlang
 en\, 91058\, Germany;X-APPLE-RADIUS=100;X-TITLE=SR 02.729:geo:0,0
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TZID:Europe/Berlin
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DTSTART:20221030T020000
TZOFFSETFROM:+0200
TZOFFSETTO:+0100
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