We investigate the boundary effects that arise when spin-1 2 impurities interact with the
edges of the antiferromagnetic spin-1 2 Heisenberg chain through spin exchange …

We investigate the boundary phenomena that arise in a finite-size XX spin chain interacting
through an XX interaction with a spin -12 impurity located at its edge. Upon Jordan-Wigner …

We re-examine the problem of a magnetic impurity coupled to a superconductor focusing on
the role of quantum fluctuations. We study in detail a system that consists of a one …

We investigate one-dimensional charge conserving, spin-singlet (SSS), and spin-triplet
(STS) superconductors in the presence of boundary fields. In systems with open boundary …

In this paper, we use the transfer matrix method to determine the band structure and
electrical transmission rate of a one-dimensional electronic comb-like waveguide system …

We construct an exactly solvable $\mathscr {PT}-$ symmetric non-Hermitian model where a
spin $-\frac {1}{2} $ isotropic quantum Heisenberg spin chain is coupled to two spin $-\frac …

We present a comprehensive analysis of boundary phenomena in a spin-$\frac {1}{2} $
anisotropic Heisenberg chain (XXZ-$\frac {1}{2} $) in the gapped antiferromagnetic phase …

We consider a model describing a system where the superconductivity competes with the
overscreened Kondo effect. The model consists of a single spin $-\frac {1}{2} $ quantum …

One dimensional quantum systems exhibit many interesting physical phenomena as a result
of strong correlations. The gapped systems with symmetries exhibit exotic phases and are …

We consider theoretically a 1D-semiconducting wire with strong Rashba interaction in
proximity with s-wave superconductor, driven into topological phase by external magnetic …