Ground States of Fermionic Nonlinear Schrödinger Systems with Coulomb Potential I: The L^2-Subcritical Case
arxiv(2023)
Abstract
We consider ground states of the N coupled fermionic nonlinear
Schrödinger systems with the Coulomb potential V(x) in the
L^2-subcritical case. By studying the associated constraint variational
problem, we prove the existence of ground states for the system with any
parameter α>0, which represents the attractive strength of the
non-relativistic quantum particles. The limiting behavior of ground states for
the system is also analyzed as α→∞, where the mass concentrates
at one of the singular points for the Coulomb potential V(x).
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