Luigi:
In preparation for next week's JC, here’s a list of papers that might be helpful if you’d like to follow the discussion.
The basic definition and proposal of fortuitous states in SUSY theories can be found in:
https://arxiv.org/pdf/2402.10129
For a more concrete (and technical) approach to the subject, see:
https://arxiv.org/pdf/2304.10155
The foundational understanding of BPS operator counting in SCFTs was developed long ago in:
https://arxiv.org/pdf/hep-th/0510251
This paper also presents an intriguing puzzle regarding the entropy of 1/16-BPS black holes, which was only resolved in recent years. I’ll review this resolution, as it motivated the initial interest in fortuitous states.
Finally, I’d like to discuss some interesting recent applications and consequences of these ideas, as explored in:
https://arxiv.org/pdf/2407.19387
https://arxiv.org/pdf/2501.17217
Alex: will discuss mainly https://arxiv.org/abs/2501.05448 and possibly a bit about: https://arxiv.org/abs/2505.14888