[seminar] [DANAS] A. Chatzistavrakidis, 14.10. (petak) 11h (c.t.), seminar ZTF-a

[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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Courant algebroids in string and membrane non-linear
sigma models


Athanasios Chatzistavrakidis
Van Swinderen Institute for Particle Physics and Gravity
University of Groningen, The Netherlands


    Datum:  petak, 14. listopada 2016.
    Vrijeme: 11 sati c.t.
    Mjesto: IRB, seminar ZTF-a


Sazetak:

Modern methods of differential geometry, notably the theory of Lie
and Courant algebroids, have found numerous applications in theoretical
physics over the last years, including Yang-Mills theories, sigma models and
string theory. These structures are instrumental in systematically
formulating theories with diverse sets of degrees of freedom (for example
gauge and scalar fields in field theories, or metric and Kalb-Ramond fields
in string theory) and discussing generalized local symmetries (for example
algebroid gauge symmetries and T-duality). In this talk first we introduce
the basic mathematical notions and discuss some examples. The main
techniques that allow the construction of general classes of algebroid
structures are presented. Then we shift our attention to two physical
applications: (a) the gauging of sigma models that describe the propagation
of bosonic strings in singular spacetimes and (b) the description of
non-geometric backgrounds in string theory by means of AKSZ-type sigma
models.


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