# ON-LINE QLunch: Asbjørn Bækgaard Lauritsen

Speaker: Asbjørn Bækgaard Lauritsen, IST Austria

Title: The BCS energy gap at low density

Abstract:
I will present our recent findings on the BCS energy gap at zero temperature $\Xi$ in the low density limit $\mu \to 0$.
Together with previous work by Hainzl and Seiringer (Lett Math Phys 84: 99–107, 2008) on the critical temperature we find
that the ratio of the energy gap and critical temperature is a universal constant independent of the interaction -  a result that is well-known in the physics literature.
Journal reference: Lett Math Phys 111, Article number: 20, 2021.

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https://ucph-ku.zoom.us/j/62861006779