Naslov
Exclusion statistics, operator algebras and Fock space representations

Autori
Meljanac, Stjepan ; Mileković, Marijan ; Stojić, Marko

Izvornik
Journal of physics. A, mathematical and general (0305-4470) 32 (1999), 7; 1115-1130

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
exclusion statistics; operator algebras; Fock space representations

Sažetak
We study exclusion statistics within the second quantized approach. We consider operator algebras with positive definite Fock space and restrict them in a such a way that certain state vectors in Fock space are forbidden ab initio.We describe three characteristic examples of such exclusion, namely exclusion on the base space which is characterized by states with specific constraint on quantum numbers belonging to base space M (e.g. Calogero-Sutherland type of exclusion statistics), exclusion in the single-oscillator Fock space, where some states in single oscillator Fock space are forbidden (e.g. the Gentile realization of exclusion statistics) and a combination of these two exclusions (e.g. Green's realization of para-Fermi statistics). For these types of exclusions we discuss extended Haldane statistics parameters g, recently introduced by two of us in Mod.Phys.Lett.A 11, 3081 (1996), and associated counting rules. Within these three types of exclusions in Fock space the original Haldane exclusion statistics cannot be realized.

Izvorni jezik
Engleski

Znanstvena područja
Fizika

POVEZANOST RADA