期刊论文详细信息
Representation of the t-J model via spin-charge variables | |
Article | |
关键词: GENERALIZED COHERENT STATES; SUPERCONDUCTIVITY; ANTIFERROMAGNET; SUPERGROUPS; HOLE; | |
DOI : 10.1103/PhysRevB.56.2703 | |
来源: SCIE |
【 摘 要 】
We show that the t-J Hamiltonian is not in general reduced to Ht-J = H((S) over right arrow,f), where (S) over right arrow and f stand for independent ([(S) over right arrow,f] = 0) SU(2) (spin) generators and spinless fermionic (holon) fields, respectively. The proof is based upon an identification of the Hubbard operators with the generators of the su(2\1) superalgebra in the degenerate fundamental representation and ensuing SU(2\1) path-integral representation of the partition function Z(t-J).
【 授权许可】
Free