[seminar] Z.Kökényesi, 20.03. (srijeda) 15h (c.t.), seminar ZTF-a
Oleg Antipin
Oleg.Antipin at irb.hr
Fri Mar 15 16:53:46 CET 2019
Large N behaviour of Macdonald-deformed 2D Yang-Mills theory
Zoltán Kökényesi
Wigner Research Centre for Physics,
Budapest, Hungary
Datum: Srijeda, 20.03 2019.
Vrijeme : 15 sati c.t.
Mjesto: IRB, predavaona I krila
Sažetak
A special class of four-dimensional BPS black hole partition function
in IIA string theory are
computed by deformed two-dimensional U(N) Yang-Mills theory, and it is
dual to topological
strings on a particular six-dimensional Calabi-Yau space. The
Macdonald deformation of
Yang-Mills theory, which is a two-parameter deformation of the
original theory, is dual to
refined topological strings, and counts BPS states with spins. We use
the representation theory
of quantum groups and symmetric polynomials to study its planar limit
and large N
expansion. The special limit of the expanded partition function, which
corresponds to Jackpolynomials,
defines new class of parameterized Euler characters, which gives back the
original Euler characters of covering spaces in the unrefined limit.
Voditelj seminara: Oleg Antipin (oantipin at irb.hr)
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