[seminar] KS Gupta, 25.09. (srijeda) 11.30.s.t. Predavaona I krila IRB

[Larisa Jonke]

                      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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  Anomalies and renormalization of mixed states
 
 Kumar S. Gupta
 Theory Division, Saha Institute of Nuclear Physics, Kolkata, India
 

  Datum: srijeda, 25. rujna 2013.
  Vrijeme: 11.30 sati s.t.
  Mjesto: IRB, predavaona I krila
 

Sazetak:
Anomalies occur when classical symmetries are broken due to quantization. In this talk we
discuss a nonperturbative approach to anomalies in the Hamiltonian framework and show
how P and T symmetries can become anomalous within such a scheme. Next we discuss how
such symmetries can be restored by using a suitable mixed state. The expectation values of
observables such as the Hamiltonian diverge in such a mixed states. We show how RG type
techniques can be used to handle such divergences. Finally we discuss the possible physical
application of such systems.


Voditeljica seminara: Larisa Jonke (Larisa at irb dot hr)