Time evolution of entangled Bell states in coupled quantum dots in the presence of fluctuations

NS Maslova, VN Mantsevich, IM Sokolov, PI Arseyev - Physical Review A, 2024 - APS
We analyze the dynamics of two-qubit entangled Bell states in coupled quantum dots (QDs)
in the presence of both fluctuations and coherent electron hop** between the dots. The …

Noise induced dynamics of two-qubit entangled Bell's states

NS Maslova, PI Arseyev, IM Sokolov… - Journal of Physics and …, 2023 - Elsevier
The stability of different types two-qubit entangled states was analyzed by a direct
calculations of the time dependent probability to find the system in its initial state in the …

Effects of anisotropy and Coulomb interactions on quantum transport in a quadruple quantum-dot structure

MY Kagan, VV Val'Kov, SV Aksenov - Physical Review B, 2017 - APS
We present an analytical and numerical investigation of the spectral and transport properties
of a quadruple quantum-dot (QQD) structure which is one of the popular low-dimensional …

Effective spin filtering in correlated semiconductor nanostructures

VN Mantsevich, IV Rozhansky, DA Frolov… - Journal of Magnetism …, 2023 - Elsevier
A new theoretical concept of an electrically controllable single-electron spin filter
(polarizator) based on the exchange interaction in the system of interacting quantum dots or …

Adequacy of Si: P chains as Fermi–Hubbard simulators

A Dusko, A Delgado, A Saraiva, B Koiller - npj Quantum Information, 2018 - nature.com
The challenge of simulating many-body models with analogue physical systems requires
both experimental precision and very low operational temperatures. Atomically precise …

Edge states and strain-driven topological phase transitions in quantum dots in topological insulators

B Puzantian, Y Saleem, M Korkusinski, P Hawrylak - Nanomaterials, 2022 - mdpi.com
We present here a theory of the electronic properties of quasi two-dimensional quantum dots
made of topological insulators. The topological insulator is described by either eight band …

A highly tunable quadruple quantum dot in a narrow bandgap semiconductor InAs nanowire

J Mu, S Huang, ZH Liu, W Li, JY Wang, D Pan… - Nanoscale, 2021 - pubs.rsc.org
Quantum dots (QDs) made from semiconductors are among the most promising platforms for
the development of quantum computing and simulation chips, and they have the advantages …

Coulomb interactions-induced perfect spin-filtering effect in a quadruple quantum-dot cell

MY Kagan, VV Val'kov, SV Aksenov - Journal of Magnetism and Magnetic …, 2017 - Elsevier
A quadruple quantum-dot (QQD) cell is proposed as a spin filter. The transport properties of
the QQD cell were studied in linear response regime on the basis of the equations of motion …

[HTML][HTML] Electronic correlations in parallel-coupled double quantum dot system: An exact analytical approach

MAH Ahsan - Physics Letters A, 2024 - Elsevier
Exact eigenstates of the parallel coupled double quantum dots attached to the non-
interacting leads taken in the zero-bandwidth limit (effectively quadruple quantum dots) are …

Influence of Coulomb Correlations on Nonequilibrium Quantum Transport in a Quadruple Quantum-Dot Structure

MY Kagan, SV Aksenov - JETP Letters, 2018 - Springer
The description of quantum transport in a quadruple quantum-dot structure (QQD) is
proposed taking into account the Coulomb correlations and nonzero bias voltages. To …