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تسجيل مستخدم جديدThe Fate of the Two-Magnon Bound State in the Heisenberg Antiferromagnet
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C.J. Hamer
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The energy spectrum of the two-magnon bound states in the Heisenberg-Ising antiferromagnet on the square lattice are calculated using series expansion methods. The results confirm an earlier spin-wave prediction of Oguchi and Ishikawa, that the bound states vanish into the continuum before the isotropic Heisenberg limit is reached.
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