[seminar] DANAS! B-Malick, Spectral properties of SU(m|n) supersymmetric ...

[Kresimir Kumericki]

Prirodoslovno-matematički fakultet
FIZIÄŒKI ODSJEK 
Bijenička c. 32, Zagreb, Hrvatska

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                     SEMINAR  TEORIJSKE  FIZIKE
(Zajednički seminari Fizičkog odsjeka PMF-a te Odjela za fiziku IRB-a)

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Dr. Bireswar Basu-Mallick,
  Saha Institute of Nuclear Physics, Calcutta, India

Spectral properties of SU(m|n) supersymmetric Haldane-Shastry spin chain


Datum: 5. lipnja 2007. (utorak, DANAS!)
Vrijeme: 15 sati c.t.
Mjesto: PMF, Fizički odsjek, Bijenička c. 32, F-201


SaĹžetak:

We discuss the procedure of deriving the exact partition function
of SU(m|n) supersymmetric Haldane-Shastry (HS) spin chain through the
freezing technique. This partition function can be used to study global
properties of the spectrum like level density distribution and nearest
neighbour spacing distribution. It is found that, for supersymmetric HS
spin chains with large number of lattice sites,  continuous part of the
energy level density obeys Gaussian distribution with a
high degree of accuracy. We also discuss a duality relation for the
partition function of supersymmetric HS spin chain under the exchange of
bosonic and fermionic spin degrees of freedom.


2007-02-13 

Voditelj seminara:
dr. Krešimir Kumerički (kkumer at phy.hr)