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SUMMARY:David Osten (Ludwig Maximilian University/Max-Planck-Institute for
Physics\, Munich)
DTSTART;VALUE=DATE-TIME:20200624T150000Z
DTEND;VALUE=DATE-TIME:20200624T170000Z
DTSTAMP;VALUE=DATE-TIME:20200812T044020Z
UID:ITMPseminar/1
DESCRIPTION:Title: Current Algebra and Generalised Geometry\nby David Oste
n (Ludwig Maximilian University/Max-Planck-Institute for Physics\, Munich)
as part of Theoretical and Mathematical Physics\n\n\nAbstract\nThe first
part of the talk will be a review of T-duality and generalised geometry in
string theory. Generalised geometry is a generalisation of Riemannian geo
metry that captures certain 'non-geometric' backgrounds which are neverthe
less well-defined in string theory. A convenient characterisation of such
backgrounds is given in terms of the so-called generalised fluxes.\n\nIn t
he second part of the talk I want to discuss the meaning of these generali
sed fluxes in the worldsheet theory. There\, they describe a deformation o
f the canonical Poisson structure -- namely the current algebra. Besides a
pplications to magnetic backgrounds and integrable sigma models which moti
vated this work\, the virtue of the deformed current algebra lies in the f
act that it gives clear-cut routes to non-commutative and non-associative
interpretations of the generalised flux backgrounds\, to generalisations o
f T-duality and to generalisations to M-theory.\n
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SUMMARY:Frederic Bruenner (Vienna University of Technology (TU Wien))
DTSTART;VALUE=DATE-TIME:20200708T150000Z
DTEND;VALUE=DATE-TIME:20200708T170000Z
DTSTAMP;VALUE=DATE-TIME:20200812T044020Z
UID:ITMPseminar/2
DESCRIPTION:Title: Gauge/gravity duality and the phenomenology of hadrons\
nby Frederic Bruenner (Vienna University of Technology (TU Wien)) as part
of Theoretical and Mathematical Physics\n\n\nAbstract\nI will give a pedag
ogical introduction to aspects of hadronic physics at low energy\, and sho
w how the methodology of gauge/gravity duality may be applied to certain p
roblems arising in this context. As a concrete example\, I will talk about
the search for glueballs\, bound states of gluons predicted by lattice ga
uge theory. These states have not been identified unambiguously among the
hadrons we observe in collider experiments\, in part due to the lack of th
eoretical predictions of their decay rates. I will show how gauge/gravity
duality can be used to calculate glueball decay rates\, and discuss potent
ial implications.\n
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BEGIN:VEVENT
SUMMARY:Jose Alejandro Rosabal (Asia Pacific Center for Theoretical Physic
s\, Pohang)
DTSTART;VALUE=DATE-TIME:20200722T110000Z
DTEND;VALUE=DATE-TIME:20200722T130000Z
DTSTAMP;VALUE=DATE-TIME:20200812T044020Z
UID:ITMPseminar/3
DESCRIPTION:Title: Schwarzschild black hole thermodynamic entropy on a nic
e slice\nby Jose Alejandro Rosabal (Asia Pacific Center for Theoretical Ph
ysics\, Pohang) as part of Theoretical and Mathematical Physics\n\n\nAbstr
act\nIn this seminar I will present the calculation of the thermodynamic e
ntropy of a Schwarzschild black hole on a nice slice. This can be seen as
a warm up to address the calculation of the Von Neumann entropy for two in
tervals\, that includes a portion of the interior of the black hole\, and
the Page curve. In the end I will comment on the relation between this wor
k and some recent proposal.\n
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