scholarly journals Beyond the Schwinger boson representation of the su(2)-algebra

2015 ◽  
Vol 2015 (4) ◽  
Author(s):  
Yasuhiko Tsue ◽  
Constança Providência ◽  
João da Providência ◽  
Masatoshi Yamamura
Keyword(s):  
Boson Representation

scholarly journals DISCUSSION ON THE SOLUTIONS IN DYSON BOSON REPRESENTATION

1989 ◽  
Vol 38 (10) ◽  
pp. 1673
Author(s):  
REN ZHONG-ZHOU ◽  
XU GONG-OU
Keyword(s):  
Boson Representation

Unified Slave Boson Representation of Spin and Charge Degrees of Freedom for Strongly Correlated Fermi Systems

1992 ◽  
Vol 06 (05n06) ◽  
pp. 685-704 ◽  
Author(s):  
R. Frésard ◽  
P. Wölfle
Keyword(s):  
Hubbard Model ◽  
Degrees Of Freedom ◽  
Strongly Correlated ◽  
Occupied Site ◽  
Fermi Systems ◽  
Detailed Derivation ◽  
Boson Representation

We consider a slave boson representation of lattice electrons in terms of bosons for the empty, singly and doubly occupied site. The approach generalizes an earlier formulation by Kotliar and Ruckenstein. As examples the Hubbard model and the t-J model are considered. The emphasis is on a detailed derivation and discussion of the formal aspects. Simple meanfield solutions are discussed for illustrative purposes.

scholarly journals Free boson representation ofq-vertex operators and their correlation functions

1993 ◽  
Vol 157 (1) ◽  
pp. 119-137 ◽  
Author(s):  
Akishi Kato ◽  
Yas-Hiro Quano ◽  
Jun'ichi Shiraishi
Keyword(s):  
Correlation Functions ◽  
Vertex Operators ◽  
Free Boson ◽  
Boson Representation

scholarly journals COUPLING CHIRAL BOSONS TO GRAVITY

1995 ◽  
Vol 10 (02) ◽  
pp. 173-178 ◽  
Author(s):  
NELSON R. F. BRAGA ◽  
CLOVIS WOTZASEK
Keyword(s):  
Gauge Symmetry ◽  
The Other ◽  
Other Hand ◽  
Physical Spectrum ◽  
Boson Theory ◽  
Manifest Covariance ◽  
Chiral Bosons ◽  
Boson Representation

The chiral boson actions of Floreanini and Jackiw (FJ), and of McClain, Wu and Yu (MWY) have recently been shown to be different representations of the same chiral boson theory. MWY displays manifest covariance and also a (gauge) symmetry that is hidden in the FJ side, which, on the other hand, displays the physical spectrum in a simpler manner. We make use of the manifest covariance of the MWY chiral boson representation to couple it to background gravity showing explicitly the equivalence with the previous results for the FJ representation.

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