[seminar] SUTRA: seminar KS Gupta, srijeda 11.30 tocno, 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)