Interface in the Quantum Heisenberg Model


It is shown that, with an appropriate scaling, the energy of low-lying excitations of the (1; 1; : : : ; 1) interface in the d-dimensional quantum Heisenberg model are given by the spectrum of the d ? 1-dimensional Lapla-cian on an suitable domain. of this article in its entirety, by any means, is permitted for non-commercial purposes. 


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