A KN Operator Formalism for a Bosonic System

1990 ◽  
Vol 14 (2) ◽  
pp. 189-195 ◽  
Author(s):  
Cheng Qi-hua
Keyword(s):  
Operator Formalism ◽  
Bosonic System

TOPOLOGICAL FERMI LIQUID EMERGING FROM A BOSONIC MODEL IN OPTICAL SUPERLATTICES

2011 ◽  
Vol 25 (11) ◽  
pp. 813-821 ◽  
Author(s):  
BO-LUN CHEN ◽  
SU-PENG KOU
Keyword(s):  
Fermi Liquid ◽  
Ultracold Atom ◽  
Fermi Surfaces ◽  
Bosonic System ◽  
Bosonic Model ◽  
Particle Approach

In this paper, we systematically analyze the properties of the bosonic t–J model simulated in optical superlattices. In particular, by using a slave-particle approach, we show the emergence of a strange topological Fermi liquid with Fermi surfaces from a purely bosonic system. We also discuss the possibility of observing these phenomena in ultracold atom experiments. The result may provide some crucial insights into the origin of high-Tc superconductivity.

Seniority in projection operator formalism

1976 ◽  
Vol 31 (2) ◽  
pp. 231-236
Author(s):  
N. Ullah
Keyword(s):  
Projection Operator ◽  
Operator Formalism

scholarly journals SU(2)k×SU(2)l/SU(2)k+l COSET CONFORMAL FIELD THEORY AND TOPOLOGICAL MINIMAL MODEL ON HIGHER GENUS RIEMANN SURFACE

1993 ◽  
Vol 08 (31) ◽  
pp. 5537-5561 ◽  
Author(s):  
HITOSHI KONNO
Keyword(s):  
Field Theory ◽  
Conformal Field Theory ◽  
Riemann Surface ◽  
Vertex Operator ◽  
Correlation Functions ◽  
Minimal Model ◽  
The Other ◽  
Operator Formalism ◽  
Conformal Field ◽  
Higher Genus

We consider the Feigin-Fuchs-Felder formalism of the SU (2)k× SU (2)l/ SU (2)k+l coset minimal conformal field theory and extend it to higher genus. We investigate a double BRST complex with respect to two compatible BRST charges, one associated with the parafermion sector and the other associated with the minimal sector in the theory. The usual screened vertex operator is extended to the BRST-invariant screened three-string vertex. We carry out a sewing operation of these vertices and derive the BRST-invariant screened g-loop operator. The latter operator characterizes the higher genus structure of the theory. An analogous operator formalism for the topological minimal model is obtained as the limit l=0 of the coset theory. We give some calculations of correlation functions on higher genus.

scholarly journals Phase structure of a two-fluid bosonic system

2005 ◽  
Vol 318 (2) ◽  
pp. 454-494 ◽  
Author(s):  
M.A. Caprio ◽  
F. Iachello
Keyword(s):  
Phase Structure ◽  
Bosonic System ◽  
Two Fluid
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