Some approaches to the Lieb-Liniger model at strong coupling (Etienne Granet/ LPT / Seminar). – 4/01, 14H.

Etienne Granet (Centre Kadanoff de physique théorique, l’Université de Chicago)

I will present two approaches to compute in- and out-of-equilibrium correlations in the Lieb-Liniger model at strong coupling. The first approach relies on a strong-weak and boson-fermion duality that is made manifest with a certain regularization of point-like interactions between fermions in quantum mechanics. The second approach consists in performing a strong-coupling expansion of form factors summations (Lehmann representation).

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