[seminar] Serija od 3 predavanja, Harold Steinacker - ponedjeljak 08.11.2010; utorak 09.11.2010; srijeda 10.11.2010 - u 11:00 c.t., IRB, seminar Zavoda za teorijsku fiziku

[Hrvoje Nikolic]

       INSTITUT Ruđer Bošković
       ZAVOD ZA TEORIJSKU FIZIKU
       Bijenička c. 54, Zagreb, Hrvatska


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                      SEMINAR ZAVODA ZA TEORIJSKU  FIZIKU
             (Zajednički seminari Zavoda za teorijsku fiziku i
 		Zavoda za eksperimentalnu fiziku IRB-a i
 		Zavoda za teorijsku fiziku PMF-a)

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  	Harold Steinacker, University of Vienna


     "Emergent Gauge Theory and Gravity from Yang-Mills Matrix Models"

       Vrijeme:  ponedjeljak, 08. studeni 2010, 11:00 c.t.
                 utorak, 09. studeni 2010, 11:00 c.t.
                 srijeda, 10. studeni 2010, 11:00 c.t.

       Mjesto:  Institut Ruđer Bošković, seminar Zavoda za teorijsku
fiziku

       Sažeatk::A introductory review to noncommutative gauge theory and
emergent noncommutative gravity within Yang-Mills Matrix models is
presented. Space-time is described as a noncommutative brane solution of
the matrix model, i.e. as submanifold of $R^D$. Fields and matter on the
brane arise as fluctuations of the bosonic resp. fermionic matrices
around such a background, and couple to an effective metric interpreted
in terms of gravity. The relation to noncommutative gauge theory and the
role of UV/IR mixing is explained. Suitable tools are provided for the
description of the effective geometry in the semi-classical limit, using
basic Poisson geometry. We discuss how generic geometries can be
realized in the matrix model framework, illustrated by simply fuzzy
geometries. The IKKT model with D=10 and close relatives are singled out
due to maximal supersymmetry.  This provides a new approach to the
problem of finding a consistent framework containing both gravity and
quantum mechanics.




      Voditelj seminara:
      Hrvoje Nikolic (hrvoje at thphys.irb.hr)


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