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Wall-crossing made smooth
In $D=4,N=2$ theories on $R^{3,1}$, the index receives contributions not only from single-particle BPS states, counted by the BPS indices, but also from multi-particle states made of BPS constituents. In a recent work [arXiv:1406.2360], a general formula expressing the index in terms of the BPS indi...
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| Lenguaje: | eng |
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2015
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| Acceso en línea: | https://dx.doi.org/10.1007/JHEP04(2015)092 http://cds.cern.ch/record/1980359 |