[seminar] Jerzy Lukierski, 25.09. (cetvrtak) 11h (c.t.), Predavaona III krila IRB

[Kornelija Passek-Kumericki]

                       SEMINAR  TEORIJSKE  FIZIKE


   (Zajednički seminari Fizičkog odsjeka PMF-a te Zavoda za teorijsku
    fiziku i Zavoda za eksperimentalnu fiziku IRB-a)

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Quantum Gravity models - a brief conceptual summary



Jerzy Lukierski
University of Wroclaw
Poland

   Datum:  cetvrtak, 25. rujna 2014.
   Vrijeme: 11 sati c.t.
   Mjesto: IRB, predavaona III krila


Sazetak:

After short historical overview we describe the difficulties with application 
of standard QFT methods in quantum gravity (QG). 
The incompatibility of QG with the use of classical continuous space-time 
required conceptually new approach. We present briefly three proposals: 
loop quantum gravity (LQG), the field-theoretic framework on noncommutative 
space-time and QG models formulated on discretized (triangularized) space-time. We evaluate these models as realizing expected important properties of QG: 
background independence, consistent quantum diffeomorphisms, noncommutative 
or discrete structure of space-time at very short distances, 
finite/renormalizable QG corrections. We only briefly outline an important 
issue of embedding QG into larger geometric and dynamical frameworks 
(e.g. supergravity, (super)strings, p-branes, M-theory), with the aim 
to achieve full unification of all fundamental interactions.


Voditeljica seminara: Kornelija Passek-Kumericki (passek at irb dot hr)
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