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arXiv · hep-th/9908055

Restoration and Dynamical Breakdown of the ϕ\to -ϕSymmetry in the (1+1)-dimensional Massive sine-Gordon Field Theory

Wen-Fa Lu
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Abstract

Within the framework of the Gaussian wave-functional approach, we investigate the influences of quantum and finite-temperature effects on the Z_2-symmetry(ϕ\to -ϕ) of the (1+1)-dimensional massive sine-Gordon field theory. It is explicitly demonstrated that by quantum effects the Z_2-symmetry can be restored in one region of the parameter space and dynamically spontaneously broken in another region. Moreover, a finite-temperature effect can further restore the Z_2-symmetry only.

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Wen-Fa Lu. 1999-08-07. Restoration and Dynamical Breakdown of the ϕ\to -ϕSymmetry in the (1+1)-dimensional Massive sine-Gordon Field Theory. https://doi.org/10.1088/0954-3899%2F26%2F8%2F307

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