 0033 T. Michoel, A. Verbeure
 Goldstone Boson Normal Coordinates
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Jan 21, 00

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Abstract. The phenomenon of spontaneous symmetry breaking is well known. It is
known to be accompanied with the appearance of the `Goldstone boson'.
In this paper we construct the canonical coordinates of the Goldstone
boson, for quantum spin systems with short range as well as long range
interactions.
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