Bose Description of Pauli Spin Operators and Related Coherent States

摘要

Using both the fermionic-like and the bosonic-like properties of the Pauli spin operators σ+, σ-, and σz we discuss the derivation of Bose description of the Pauli spin operators originally proposed by Shigefumi Naka, and deduce another new bosonic representation of Pauli operators. The related coherent states, which are nonlinear coherent state and coherent spin states for two spins, respectively, are constructed.