Irrational versus rational charge and statistics in two-dimensional quantum systems.
Phys Rev Lett
; 100(11): 110405, 2008 Mar 21.
Article
in En
| MEDLINE
| ID: mdl-18517765
We show that quasiparticle excitations with irrational charge and irrational exchange statistics exist in tight-binding systems described, in the continuum approximation, by the Dirac equation in (2+1)-dimensional space and time. These excitations can be deconfined at zero temperature, but when they are, the charge rerationalizes to the value 1/2 and the exchange statistics to that of "quartons" (half-semions).
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Collection:
01-internacional
Database:
MEDLINE
Language:
En
Journal:
Phys Rev Lett
Year:
2008
Type:
Article
Affiliation country:
United States