From what I've read earlier, the definition of a BPS soliton is a soliton satisfying a Bogomolny bound (mass bounded from below). Now, I have encountered another definition, which says that a BPS soliton is a soliton preserving (at least some) supersymmetry. I don't really understand the connection between these two definitions. An explanation of this matter would be much appreciated!(adsbygoogle = window.adsbygoogle || []).push({});

Thanks in advance!

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# Question about BPS solitions

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