Effective Heisenberg equations for quadratic Hamiltonians

AE Teretenkov - International Journal of Modern Physics A, 2022 - World Scientific
In this paper, we discuss effective quantum dynamics obtained by averaging projector with
respect to free dynamics. For unitary dynamics generated by quadratic fermionic …

Intermode-interaction-induced dynamics of continuous-variable quantum-key-distribution observables

A Gaidash, AD Kiselev, G Miroshnichenko, A Kozubov - Physical Review A, 2024 - APS
We theoretically study the dynamical regimes of the observables that govern the operating
conditions of continuous-variable (CV) quantum-key-distribution (QKD) systems, depending …

Lindblad dynamics and disentanglement in multi-mode bosonic systems

AD Kiselev, R Ali, AV Rybin - Entropy, 2021 - mdpi.com
In this paper, we consider the thermal bath Lindblad master equation to describe the
quantum nonunitary dynamics of quantum states in a multi-mode bosonic system. For the …

Higher order moments dynamics for some multimode quantum master equations

IA Nosal, AE Teretenkov - Lobachevskii Journal of Mathematics, 2022 - Springer
We derive Heisenberg equations for arbitrary high order moments of creation and
annihilation operators in the case of the quantum master equation with a multimode …

Speed of Evolution and Correlations in Multi-Mode Bosonic Systems

AD Kiselev, A Ranim, AV Rybin - Entropy, 2022 - mdpi.com
We employ an exact solution of the thermal bath Lindblad master equation with the
Liouvillian superoperator that takes into account both dynamic and environment-induced …

Problem solving dynamics for gate-model quantum computers

L Gyongyosi, S Imre - Quantum Information Science, Sensing …, 2022 - spiedigitallibrary.org
In the noisy intermediate-scale quantum technological setting, the computational steps in a
quantum computer are realized via unitary gates. Gate-model quantum computer …

[HTML][HTML] Master equation for correlators of normal-ordered field mode operators

AD Vatutin, GP Miroshnichenko… - Наносистемы: физика …, 2022 - cyberleninka.ru
We study the master equation for open quantum systems in the alternative form, preserving
the normal form of the averaged normal-ordered operators. We give an example of using …

Dynamics of Characteristic and One-Point Correlation Functions of Multi-Mode Bosonic Systems: Exactly Solvable Model

AD Kiselev, R Ali, AV Rybin - Symmetry, 2021 - mdpi.com
In this communication we study dynamics of the open quantum bosonic system governed by
the generalized Lindblad equation with both dynamical and environment induced intermode …

Resource optimization for the quantum Internet

L Gyongyosi, S Imre - Quantum Computing, Communication …, 2022 - spiedigitallibrary.org
The quantum Internet enables networking based on the fundamentals of quantum
mechanics. Here, we define methods and procedures of resource prioritization and resource …

Algebraic approach for investigation of a multi-mode quantum system dynamics

A Gaidash, A Kozubov, A Kiselev… - arXiv preprint arXiv …, 2022 - arxiv.org
We introduce algebraic approach for superoperators that might be useful tool for
investigation of quantum (bosonic) multi-mode systems and its dynamics. In order to …