Entanglement dynamics of two coupled spins interacting with an adjustable spin bath: effect of an exponential variable magnetic field

A Dehghani, B Mojaveri, M Vaez - Quantum Information Processing, 2020 - Springer
The present work is devoted to studying the entanglement dynamics of two central spins
coupled in a spin environment and subjected, simultaneously, to an external magnetic field …

Dynamics of a central electron spin coupled to an anti-ferromagnetic spin bath driven by a variable magnetic field in the Landau-Zener scenario

GC Fouokeng, M Tchoffo, ME Ateuafack… - The European Physical …, 2014 - Springer
The Landau-Zener (LZ) transition probability of a two-level crossing in a single quantum dot
driven by a two-state auto-correlated (TSAC) noise is studied. The model used isolates a …

Dzyaloshinskii–Moriya interaction effects on the entanglement dynamics of a two qubit XXZ spin system in non-Markovian environment

M Tchoffo, GC Fouokeng, E Tendong, LC Fai - Journal of Magnetism and …, 2016 - Elsevier
We investigate the entanglement dynamics of a two-qubit Heisenberg XXZ chain with
Dzyaloshinskii–Moriya (DM) interactions, interacting with an anisotropic spin bath in thermal …

[PDF][PDF] Thermodynamic properties and decoherence of a central electron spin of atom coupled to an anti-ferromagnetic spin bath

M Tchoffo, GC Fouokeng, LC Fai… - Journal of Quantum …, 2013 - file.scirp.org
The decoherence of a central electron spin of an atom coupled to an anti-ferromagnetic spin
bath in the presence of a time varying B-Field (VBF) is investigated applying the Holstein …

Effect of Noise on the Decoherence of a Central Electron Spin Coupled to an Antiferromagnetic Spin Bath

GC Fouokeng, M Tchoffo, S Moussiliou… - … in Condensed Matter …, 2014 - Wiley Online Library
We analyze the influence of a two‐state autocorrelated noise on the decoherence and on
the tunneling Landau‐Zener (LZ) transitions during a two‐level crossing of a central electron …

The quenching field effect on the motion of an electron in an electromagnetic field potential

GC Fouokeng, M Tchoffo, LC Fai, NE Afuoti… - … Physics Letters B, 2014 - World Scientific
In this paper, the Feynman path integral approach based on the Gaussian wave packet
approximation is employed to evaluate the coherence factor and the probability distribution …

[PDF][PDF] Research Article Effect of Noise on the Decoherence of a Central Electron Spin Coupled to an Antiferromagnetic Spin Bath

GC Fouokeng, M Tchoffo, S Moussiliou, JCN Kuetche… - academia.edu
We analyze the influence of a two-state autocorrelated noise on the decoherence and on the
tunneling Landau-Zener (LZ) transitions during a two-level crossing of a central electron …

Dzyaloshinskii-Moriya interactions effects on the entanglement dynamics of a two qubit xxz spin system in non-Markovian environment

GC Fouokeng, M Tchoffo, E Tendong… - arXiv preprint arXiv …, 2014 - arxiv.org
We investigate the exact entanglement dynamics of a two-qubit Heisenberg XXZ chain with
Dzyaloshinskii-Moriya (DM) interactions, interacting with an anisotropic spin bath in thermal …

Cumulative Effects of the Temperature and Damping on the Time Dependent Entropy and Decoherence in the Caldirola-Kanai Harmonic Oscillator

M Tabue, A Fotue, F Pelap - Physical Science International …, 2015 - asian.go4sending.com
The time Dependence of probability and Shannon entropy of the specific damped harmonic
oscillator systems is studied by using a prototypical Schrodinger cat state through the …

[HTML][HTML] Tailoring Quantum Correlations of a Coupled Central Two Qubits Soaked in a Finite Temperature Antiferromagnetic Environment with Frequency Gap

LC Fai, NE Afuoti, GC Fouokeng, JCN Kuetche… - Journal of Quantum …, 2014 - scirp.org
We revisit the quantum features of an anti-ferromagnetic (AF) spin environment at finite
temperature with gap in its frequency spectrum, on the dynamics quantum correlations of a …