174 citations · 2.7k across the 111 of their papers we have counts for
7 papers · 1 filter
Exactly solvable Kondo problem in the open chains
Jianhui Dai, Yupeng Wang
We study the problem of a boundary magnetic impurity coupled with the solvable chains. Our model provides a good start point to understand the Kondo problem in a Luttinger li…
Ghost spins and novel quantum critical behavior in a spin chain with local bond-deformation
Jian-Hui Dai, Yupeng Wang, U. Eckern
We study the boundary impurity-induced critical behavior in an integrable SU(2)-invariant model consisting of an open Heisenberg chain of arbitrary spin- (Takhatajian-Babujian m…
Pinning of slidding collective charge state in a 1D attractive fermion system
Shu Chen, Yupeng Wang, Fan Yang +1
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. I…
Exact solution of the open Heisenberg chain with two impurities
Yupeng Wang
We propose an integrable model of the spin-1/2 Heisenberg chain coupled to two impurity moments. With the open boundary conditions at the impurity sites, the model can be exactly s…
Scalar potential effect in an integrable Kondo model
Yupeng Wang, U. Eckern
To study the impurity potential effect to the Kondo problem in a Luttinger liquid, we propose an integrable model of two interacting half-chains coupled with a single magnetic impu…
Comment on "The Hubbard Quantum Wire"
Yupeng Wang
%auto-ignore Paper has been withdrawn by the author.