scholarly journals NonlinearσModel for Inhomogeneous Spin Chains

1999 ◽  
Vol 82 (25) ◽  
pp. 5124-5127 ◽  
Author(s):  
Ken'ichi Takano
Keyword(s):  
Spin Chains ◽  
Inhomogeneous Spin

scholarly journals Symmetry protected phases in inhomogeneous spin chains

2019 ◽  
Vol 2019 (9) ◽  
pp. 093102 ◽  
Author(s):  
Nadir Samos Sáenz de Buruaga ◽  
Silvia N Santalla ◽  
Javier Rodríguez-Laguna ◽  
Germán Sierra
Keyword(s):  
Spin Chains ◽  
Inhomogeneous Spin ◽  
Symmetry Protected

2-qubit quantum state transfer in spin chains and cold atoms with weak links

2017 ◽  
Vol 15 (05) ◽  
pp. 1750037 ◽  
Author(s):  
Salvatore Lorenzo ◽  
Tony J. G. Apollaro ◽  
Andrea Trombettoni ◽  
Simone Paganelli
Keyword(s):  
Quantum State ◽  
Optical Lattices ◽  
Cold Atoms ◽  
Condensed Matter ◽  
Spin Systems ◽  
Spin Chains ◽  
Weak Links ◽  
Quantum State Transfer ◽  
State Transfer ◽  
Inhomogeneous Spin

In this paper we discuss the implementation of 2-qubit quantum state transfer (QST) in inhomogeneous spin chains where the sender and the receiver blocks are coupled through the bulk channel via weak links. The fidelity and the typical timescale of the QST are discussed as a function of the parameters of the weak links. Given the possibility of implementing with cold atoms in optical lattices a variety of condensed matter systems, including spin systems, we also discuss the possible implementation of the discussed 2-qubit QST with cold gases with weak links, together with a discussion of the applications and limitations of the presented results.

scholarly journals Tunable Kondo screening length at a Y-junction of three inhomogeneous spin chains

2020 ◽  
Vol 960 ◽  
pp. 115192
Author(s):  
Domenico Giuliano ◽  
Andrea Nava ◽  
Pasquale Sodano
Keyword(s):  
Spin Chains ◽  
Screening Length ◽  
Inhomogeneous Spin ◽  
Kondo Screening

Solvable nineteen-vertex models and quantum spin chains of spin one

1994 ◽  
Vol 4 (8) ◽  
pp. 1151-1159 ◽  
Author(s):  
Makoto Idzumi ◽  
Tetsuji Tokihiro ◽  
Masao Arai
Keyword(s):  
Quantum Spin ◽  
Spin Chains ◽  
Quantum Spin Chains ◽  
Vertex Models

Incoherent spin current

2017 ◽  
Author(s):  
K. Ando ◽  
E. Saitoh
Keyword(s):  
Diffusion Equation ◽  
Spin Density ◽  
Spin Diffusion ◽  
Spin Injection ◽  
Spin Current ◽  
Ferromagnetic Semiconductor ◽  
Electrochemical Potential ◽  
Semiconductor Interface ◽  
Interface Resistance ◽  
Inhomogeneous Spin

This chapter introduces the concept of incoherent spin current. A diffusive spin current can be driven by spatial inhomogeneous spin density. Such spin flow is formulated using the spin diffusion equation with spin-dependent electrochemical potential. The chapter also proposes a solution to the problem known as the conductivity mismatch problem of spin injection into a semiconductor. A way to overcome the problem is by using a ferromagnetic semiconductor as a spin source; another is to insert a spin-dependent interface resistance at a metal–semiconductor interface.

scholarly journals Complete characterization of spin chains with two Ising symmetries

2019 ◽  
Vol 125 (1) ◽  
pp. 10008 ◽  
Author(s):  
Bat-el Friedman ◽  
Atanu Rajak ◽  
Emanuele G. Dalla Torre
Keyword(s):  
Complete Characterization ◽  
Spin Chains
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