A NEW METHOD TO SOLVE THE S = l/2 HEISENBERG SPIN CHAIN | Zendy

LIN NIAN | Zendy; Zurong Yu | Zendy

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A NEW METHOD TO SOLVE THE S = l/2 HEISENBERG SPIN CHAIN

Author(s) -

LIN NIAN,

Zurong Yu

Publication year - 1993

Publication title -

acta physica sinica

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.199

H-Index - 47

ISSN - 1000-3290

DOI - 10.7498/aps.42.1990

Subject(s) - eigenvalues and eigenvectors , antiferromagnetism , physics , chain (unit) , ground state , excited state , spin (aerodynamics) , permutation group , heisenberg model , boundary (topology) , mathematical physics , quantum mechanics , permutation (music) , mathematical analysis , mathematics , acoustics , thermodynamics

We present a new approach which is completely based on the permutation group theory to solve the eigenvalue problem of the S = 1/2 Heisenberg finite-chain with free-ends boundary. All of the eigenvalues and the corresponding eigenstates are obtained. The properties of the ground state and the low-lying excited states of the antiferromagnetic chain are examined.

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