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arXiv · hep-th/9707263

Boson metastable ground states with spontaneous symmetry breaking

M. Chaves
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Abstract

We show that a system of bosons in a T=0 quantum field theory can present metastable ground states with spontaneous symmetry breaking, even in the absence of an imaginary mass term. This gives a natural explanation to the Davis-Shellard background field \exp(-i ω_0 t) and adds a new degree of freedom in boson systems, with possible applications in cosmology, condensed matter and high energy physics.

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M. Chaves. 1997-07-31. Boson metastable ground states with spontaneous symmetry breaking. https://doi.org/10.1016/s0370-2693(97)01236-7

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