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arXiv · 1607.01252

The Nambu-Goldstone theorem in non-relativistic systems

Ivan Arraut
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Abstract

In non-relativistic systems, when there is spontaneous symmetry breaking, the number of Nambu-Goldstone bosons ($n_{NG}$) are not necessarily equal to the number of broken generators ($n_{BG}$). Here we use the method of operators for analyzing the necessary conditions in order to obtain the correct dispersion relation for the Nambu-Goldstone bosons.

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Ivan Arraut. 2017-07-29. The Nambu-Goldstone theorem in non-relativistic systems. https://doi.org/10.1142/s0217751x17501275

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