Intrinsic decoherence dynamics and dense coding in dipolar spin system
نویسندگان
چکیده
The quantum decoherence is an ineluctable process when a system interacts with its surrounding environment. Milburn’s dynamical master equation, as modified shape of the Schrödinger typically used to study effects even without intervention We studied temporal evolution non-local correlations in dipolar-coupled spin under influence intrinsic decoherence. Primarily, generation Einstein–Podolsky–Rosen steering, measurement-induced non-locality and entanglement uncorrelated initial state were studied. Also, effect on quality dense coding capacity dynamics for was examined. Our results highlight that system’s role defining correlations’ robustness, we also brought out impacts parameters efficiency process.
منابع مشابه
Electron and hole spin dynamics and decoherence in quantum dots
In this article we review our work on the dynamics and decoherence of electron and hole spins in single and double quantum dots. The first part, on electron spins, focuses on decoherence induced via the hyperfine interaction while the second part covers decoherence and relaxation of heavy-hole spins due to spin-orbit interaction as well as the manipulation of heavy-hole spin using electric dipo...
متن کاملEnvironmental decoherence versus intrinsic decoherence.
We review the difference between standard environmental decoherence and 'intrinsic decoherence', which is taken to be an ineluctable process of Nature. Environmental decoherence is typically modelled by spin bath or oscillator modes-we review some of the unanswered questions not captured by these models, and also the application of them to experiments. Finally, a sketch is given of a new theore...
متن کاملSpin correlations in Ho2Ti2O7: a dipolar spin ice system.
The pyrochlore material Ho2Ti2O7 has been suggested to show "spin ice" behavior. We present neutron scattering and specific heat results that establish unambiguously that Ho2Ti2O7 exhibits spin ice correlations at low temperature. Diffuse magnetic neutron scattering is quite well described by a nearest neighbor spin ice model and very accurately described by a dipolar spin ice model. The heat c...
متن کاملIntrinsic decoherence dynamics in smooth Hamiltonian systems: Quantum-classical correspondence
A direct classical analog of the quantum dynamics of intrinsic decoherence in Hamiltonian systems, characterized by the time dependence of the linear entropy of the reduced density operator, is introduced. The similarities and differences between the classical and quantum decoherence dynamics of an initial quantum state are exposed using both analytical and computational results. In particular,...
متن کاملIntrinsic Decoherence in Mesoscopic Systems
We present measurements of the phase coherence time tf in six quasi-1D Au wires and clearly show that tf is temperature independent at low temperatures. We suggest that zero-point fluctuations of the phase coherent electrons are responsible for the observed saturation of tf. We introduce a new functional form for the temperature dependence and present the results of a calculation for the satura...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Applied Physics B
سال: 2022
ISSN: ['1432-0649', '0946-2171']
DOI: https://doi.org/10.1007/s00340-022-07956-y