10:28:17 From Zohar Komargodski to Everyone: I think with FI terms there are some sort of BPS strings in N=2 gauge theories 10:28:33 From Zohar Komargodski to Everyone: This is what Hanany-Tong did 10:29:01 From Mikhail Shifman to Everyone: Yes, I will talk about them in detail on Tuesday. 10:29:08 From Victor Gorbenko to Everyone: But do these strings have tension? 10:29:17 From Mikhail Shifman to Everyone: Yes, they do 10:29:25 From Zohar Komargodski to Everyone: Yes, they are BPS and their tension is fixed by the FI term 10:29:33 From Mikhail Shifman to Everyone: The tension is determined by the FI parameter 10:30:19 From Zohar Komargodski to Everyone: The gauge symmetry is Higgsed in these models completely so you might not call this confinement (related to what I said yesterday since there are fundamentals) 10:30:36 From Zohar Komargodski to Everyone: But these strings still exist and they are stable and have tension 10:31:04 From Victor Gorbenko to Everyone: I agree it is interesting to see what the worksheet theory is 10:31:25 From Zohar Komargodski to Everyone: Their stability is related to the U1 factor in the gauge group which leads to some additional one form symmetries. So it is not SUN but still 10:32:21 From Victor Gorbenko to Everyone: I do not have any insight at the moment, apart form some general understanding how the goldstino part should look like, since they should break some SUSY spontaneously, right? 10:33:09 From Zohar Komargodski to Everyone: yes. But in addition, they support very light CPN sigma model degrees of freedom and the spectrum of the massive states of this CPN model is known and it is matched to some bulk excitations in Hanany Tong 10:34:48 From Victor Gorbenko to Everyone: Could you send the ref. please? 10:34:53 From Sergei Dubovsky to Everyone: Hi Zohar, what happens to these strings in the large N limit? Is there a decoupling limit where their tension stays finite? 10:35:52 From Zohar Komargodski to Everyone: https://arxiv.org/pdf/hep-th/0403158.pdf 10:37:21 From Zohar Komargodski to Everyone: Maybe let’s discuss during the break I will say it more correctly than I said before 11:03:08 From Zohar Komargodski to Everyone: So for U1+charge 1 in 4d there is a stable string due to the magnetic one form symmetry so that is why monopoles confine in the Higgs phase. The constructions with the FI term in 4d N=2 gauge theories similarly require a magnetic one form symmetry for the U1 factor of the gauge group. The Higgs phase is the result of adding a FI term. So there is this dual confinement in N=2 gauge theory with U1 factors.