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Physics  2005 

The energy spectrum symmetry of Heisenberg model in Fock space

DOI: 10.1088/0256-307X/23/9/053

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Abstract:

We prove strictly that one dimension spin 1/2 Heisenberg model has a symmetry of energy spectrum between its subspace $n$ and the subspace $L-n$ of the Fock space. Our proof is completed by introducing two general quantum operations. One is a flip operation of spin direction and another is a mirror reflection of spin sites.

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