29 citations · 45 across the 4 of their papers we have counts for
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On the BCS gap equation for superfluid fermionic gases
Gerhard Bräunlich, Christian Hainzl, Robert Seiringer
We present a rigorous derivation of the BCS gap equation for superfluid fermionic gases with point interactions. Our starting point is the BCS energy functional, whose minimizer we…
Translation-invariant quasi-free states for fermionic systems and the BCS approximation
Gerhard Bräunlich, Christian Hainzl, Robert Seiringer
We study translation-invariant quasi-free states for a system of fermions with two-particle interactions. The associated energy functional is similar to the BCS functional but incl…
On contact interactions as limits of short-range potentials
Gerhard Bräunlich, Christian Hainzl, Robert Seiringer
We reconsider the norm resolvent limit of with tending to a point interaction in three dimensions. We are mainly interested in potentials modelling s…
Equivalence of topological and scattering approaches to quantum pumping
G. Braeunlich, G. M. Graf, G. Ortelli
The Schroedinger equation with a potential periodically varying in time is used to model adiabatic quantum pumps. The systems considered may be either infinitely extended and gappe…