Pinning of slidding collective charge state in a 1D attractive fermion system

Details Pinning of slidding collective charge state in a 1D attractive fermion system Pinning of slidding collective charge state in a 1D attractive fermion system

1998-08-03

arxiv.org/abs/cond-mat/9808016v1

PRB 59, 7950(1999)

Physics

Condensed Matter

Strongly Correlated Electrons

8 pages, revtex, no figures

Scientific paper

10.1103/PhysRevB.59.7950

We investigate an interacting fermion model with boundary potential by using Bethe ansatz method. The ground state properties of the system and the boundary effect are discussed. It is found that attractive boundary potential leads to the boundary bound state. An interesting phenomenon is that the slidding collective charges in a periodic system, which is formed due to the attractive interaction among the fermions, will be pinned around the boundary, as long as the negative boundary potential is strong enough.

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