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hep-th2025
Examples for BPS solitons destabilized by quantum effects
Willem J. Meyer, Herbert Weigel
We investigate serval models for two scalar fields in one space dimension with topologically stable solitons that are constructed from BPS equations. The asymptotic behavior of the…
hep-th2019
Quantum Instabilities of Solitons
H. Weigel
We compute the vacuum polarization energies for a couple of soliton models in one space and one time dimensions. These solitons are mappings that connect different degenerate vacua…
hep-th2010★ 20 cited
Stable charged cosmic strings
H. Weigel, M. Quandt, N. Graham
We study the quantum stabilization of a cosmic string by a heavy fermion doublet in a reduced version of the standard model. We show that charged strings, obtained by populating fe…