Results 51 to 60 of about 692,162 (247)

A minimally invasive neurostimulation method for controlling abnormal synchronisation in the neuronal activity. [PDF]

PLoS Computational Biology, 2018
Many collective phenomena in Nature emerge from the -partial- synchronisation of the units comprising a system. In the case of the brain, this self-organised process allows groups of neurons to fire in highly intricate partially synchronised patterns and
Malbor Asllani, Paul Expert, Timoteo Carletti   +2 more
doaj   +1 more source

Port-Hamiltonian Control of GFM-VSCs With Robust Stable and Uniform Error Dynamics

IEEE Access, 2023
In this paper, a grid-forming (GFM) control is developed based on the nonlinear Port-Hamiltonian (PH) system theory to systematically achieve tracking control and Lyapunov-based stability by considering the power flow dynamic, voltage and current ...
Duo Wang
doaj   +1 more source

Finite-time thermodynamics of port-Hamiltonian systems

, 2013
In this paper, we identify a class of time-varying port-Hamiltonian systems that is suitable for studying problems at the intersection of statistical mechanics and control of physical systems.
Delvenne, Jean-Charles, Sandberg, Henrik
core   +1 more source

Deterministic Epidemic Models for Ebola Infection with Time-Dependent Controls

Discrete Dynamics in Nature and Society, 2020
In this paper, we have studied epidemiological models for Ebola infection using nonlinear ordinary differential equations and optimal control theory.
Eric Okyere, Johnson De-Graft Ankamah, Anthony Kodzo Hunkpe, Dorcas Mensah   +3 more
doaj   +1 more source

Synthesis of linear quantum stochastic systems via quantum feedback networks [PDF]

, 2009
Recent theoretical and experimental investigations of coherent feedback control, the feedback control of a quantum system with another quantum system, has raised the important problem of how to synthesize a class of quantum systems, called the class of ...
Nurdin, H. I.
core   +1 more source

Monotonically convergent optimization in quantum control using Krotov's method [PDF]

, 2012
The non-linear optimization method developed by Konnov and Krotov [Automation and Remote Control 60, 1427 (1999)] has been used previously to extend the capabilities of optimal control theory from the linear to the non-linear Schr\"odinger equation ...
Koch, Christiane P., Ndong, Mamadou, Reich, Daniel   +2 more
core   +2 more sources

Quantum Property Preservation

PRX Quantum
Quantum property preservation (QPP) is the problem of maintaining a target property of a quantum system for as long as possible. This problem arises naturally in the context of open quantum systems subject to decoherence.
Kumar Saurav, Daniel A. Lidar
doaj   +1 more source

Hamiltonian-based algorithm for relaxed optimal control [PDF]

IEEE Conference on Decision and Control, 2016
This paper concerns a first-order algorithmic technique for a class of optimal control problems defined on switched-mode hybrid systems. The salient feature of the algorithm is that it avoids the computation of Fréchet or Gâteaux derivatives of the ...
Y. Wardi, M. Egerstedt, Muhammad Umer Qureshi   +2 more
semanticscholar   +1 more source

Optimisation of Quantum Evolution Algorithms [PDF]

, 2015
Given a quantum Hamiltonian and its evolution time, the corresponding unitary evolution operator can be constructed in many different ways, corresponding to different trajectories between the desired end-points. A choice among these trajectories can then
Patel, Apoorva
core   +1 more source

Velocity Observer Design for Tether Deployment in Hamiltonian Framework

Aerospace
This paper presents a nonlinear velocity observer of tether deployment using the immersion and invariance technique, and the velocity observer design problem is recast as a problem of designing an attractive and invariant manifold inside the Hamiltonian ...
Jihang Yang, Guanzheng Chen, Mingming Zhang, Gangqiang Li, Jinyu Liu   +4 more
doaj   +1 more source