Entanglement of a Nanowires System with Rashba Interaction

Abstract

We propose a scheme to investigate the behavior of a ballistic nanowire system with Rashba interaction within a perpendicular magnetic field. The quantum entanglement of a nanowire system is discussed via the negativity. When the strong and weak magnetic fields are applied, we discuss the influence of the spin-orbit interaction and the initial states on the population inversion and the negativity. Our results show that the degree of entanglement for the nanowire system mainly depends on the effect of the spin-orbit interaction and the initial states of the system. This opens up new avenues for designing nanowire systems for future quantum computation and communication applications.

Quantum computational speed of a nanowires system with Rashba interaction in the presence of a magnetic field

“…In our computations, we use typical indium arsenide (InAs) factors , , , and 14 – 16 , 24 , 27 , 29 . Also, to prepare our results we use the Wolfram Mathematica 11 software.…”

“…The energy-level crossing and the quantum Fisher information behavior in a two-dimensional quantum wire interacting with Rashba and Dresselhaus SOC have been explored 28 . In addition, when the weak and strong magnetic fields are employed, the quantum entanglement of a nanowire system through negativity has been discussed 29 . While, in quantum computing a new application of a ballistic nanowire system with SOC to create specific new quantum gates has been investigated 30 .…”