[seminar] DANAS - 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
hrvoje at thphys.irb.hr
Mon Nov 8 09:05:57 CET 2010
INSTITUT RuÄer BoÅ¡koviÄ
ZAVOD ZA TEORIJSKU FIZIKU
BijeniÄka c. 54, Zagreb, Hrvatska
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SEMINAR ZAVODA ZA TEORIJSKU FIZIKU
(ZajedniÄki 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: DANAS (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 RuÄer BoÅ¡koviÄ, 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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