One-loop quantum energy corrections for BPS solitons in three new models are unbounded below, confirming a conjecture that access to secondary vacua destabilizes such solitons.
When g(µ1, µ2) ≡ µ2 µ1 + µ2 4 ≤ 1, or equivalently µ2 ≤ 2 p 1 + µ2 1 − µ1 there are secondary vacua at χ2 s = µ1 + µ2 2 and ϕs = ± q 1 − µ2 µ1 + µ2 4
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Examples for BPS solitons destabilized by quantum effects
One-loop quantum energy corrections for BPS solitons in three new models are unbounded below, confirming a conjecture that access to secondary vacua destabilizes such solitons.