Results 21 to 30 of about 576,632 (313)

Strong coupling thermodynamics and stochastic thermodynamics from the unifying perspective of time-scale separation

open access: yesPhysical Review Research, 2022
Assuming time-scale separation, a simple and unified theory of thermodynamics and stochastic thermodynamics is constructed for small classical systems strongly interacting with their environments in a controllable fashion.
Mingnan Ding, Zhanchun Tu, Xiangjun Xing
doaj   +1 more source

Quantum thermo-dynamical construction for driven open quantum systems [PDF]

open access: yesQuantum, 2021
Quantum dynamics of driven open systems should be compatible with both quantum mechanic and thermodynamic principles. By formulating the thermodynamic principles in terms of a set of postulates we obtain a thermodynamically consistent master equation ...
Roie Dann, Ronnie Kosloff
doaj   +1 more source

Robust, distributed and optimal control of smart grids [PDF]

open access: yesEPJ Web of Conferences, 2022
These lecture notes provide an overview of recent research on the modeling and control of smart grids using distributed algorithms. In particular, energy-based modeling of general AC power networks using the framework of port-Hamiltonian systems theory ...
Machado Juan E.   +3 more
doaj   +1 more source

Damping Formation Mechanism and Damping Injection of Virtual Synchronous Generator Based on Generalized Hamiltonian Theory

open access: yesEnergies, 2021
Invertor as a virtual synchronous generator (VSG) to provide virtual inertia and damping can improve the stability of a microgrid, in which the damping is one of the fundamental problems in dynamics.
Y. Zeng, J. Qian, F. Yu, Hong Mei, S. Yu
semanticscholar   +1 more source

Using Hamiltonian control to desynchronize Kuramoto oscillators. [PDF]

open access: yesPhysical Review E, 2016
Many coordination phenomena are based on a synchronization process, whose global behavior emerges from the interactions among the individual parts. Often in nature, such self-organized mechanism allows the system to behave as a whole and thus grounding ...
Oltiana Gjata   +3 more
semanticscholar   +1 more source

L2 Disturbance Suppression Controller Design for Multiple Time Delays Offshore Wind Turbines

open access: yesIEEE Access, 2020
With the large-scale development of offshore wind power and the rapid development of smart grid, more and more attention has been paid to the stable operation of wind turbines under various conditions.
Zhen Tang   +4 more
doaj   +1 more source

Conditions for Equivalent Noise Sensitivity of Geometric and Dynamical Quantum Gates

open access: yesPRX Quantum, 2022
Geometric quantum gates are often expected to be more resilient than dynamical gates against certain types of error, which would make them ideal for robust quantum computing.
R. K. L. Colmenar   +2 more
doaj   +1 more source

Lyapunov-based fixed-time stabilization control of quantum systems

open access: yesJournal of Automation and Intelligence, 2022
In this paper, we consider the fixed-time stabilization control problem of quantum systems modeled by Schrödinger equations. Firstly, the Lyapunov-based fixed-time stability criterion is extended to finite-dimensional closed quantum systems in the form ...
Xiaolei Li, Changyun Wen, Jiange Wang
doaj   +1 more source

Quantum optimal control theory for solvated systems. [PDF]

open access: yesJournal of Chemical Physics, 2019
In this work, we generalize the quantum optimal control theory (QOCT) of molecules subject to ultrashort laser pulses to the case of solvated systems, explicitly including the solvent dielectric properties in the system's quantum Hamiltonian.
Marta Rosa, G. Gil, S. Corni, R. Cammi
semanticscholar   +1 more source

Engineering effective Hamiltonians

open access: yesNew Journal of Physics, 2019
In the field of quantum control, effective Hamiltonian engineering is a powerful tool that utilizes perturbation theory to mitigate or enhance the effect that a variation in the Hamiltonian has on the evolution of the system.
Holger Haas   +3 more
doaj   +1 more source

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