scholarly journals Optimal Control for Quantum Optimization of Closed and Open Systems

2021 ◽  
Vol 16 (5) ◽  
Author(s):  
Lorenzo Campos Venuti ◽  
Domenico D’Alessandro ◽  
Daniel A. Lidar
Keyword(s):  
Optimal Control ◽  
Open Systems ◽  
Quantum Optimization

scholarly journals Robust quantum gates for open systems via optimal control: Markovian versus non-Markovian dynamics

2012 ◽  
Vol 14 (7) ◽  
pp. 073023 ◽  
Author(s):  
Frederik F Floether ◽  
Pierre de Fouquieres ◽  
Sophie G Schirmer
Keyword(s):  
Optimal Control ◽  
Open Systems ◽  
Quantum Gates ◽  
Markovian Dynamics

Minimal Work for Separation Processes of Binary Mixtures

2003 ◽  
Vol 10 (04) ◽  
pp. 335-349 ◽  
Author(s):  
S. A. Amelkin ◽  
A. M. Tsirlin ◽  
J. M. Burzler ◽  
S. Schubert ◽  
K. H. Hoffmann
Keyword(s):  
Mass Transfer ◽  
Optimal Control ◽  
Theoretical Model ◽  
Binary Mixtures ◽  
Membrane Separation ◽  
Open Systems ◽  
Separation Processes ◽  
Ideal Gases ◽  
Mass Transfer Kinetics ◽  
Minimal Work

The work expenditures for both perfect and imperfect separation processes are well known for the reversible case; yet such a description is often far from reality. Real processes operate at finite times and non-zero rates leading to an additional, irreversible energy expenditure. This paper employs an idealized van t'Hoff chamber as a theoretical model to derive lower bounds for the irreversible work in real separation processes such as membrane separation. Methods of optimal control for open systems and nonlinear programming of averaged problems are used to calculate the optimal mass transfer kinetics for the finite-time separation of binary mixtures of ideal gases.

The Construction and Analysis of Eutrophication Model for Caohai of Dianchi Lake

2010 ◽  
Vol 160-162 ◽  
pp. 1445-1449
Author(s):  
Guo Zhu Mao ◽  
Shu Zhang ◽  
Hui Bin Du ◽  
Hong Mei Wang ◽  
Li He Chai
Keyword(s):  
Optimal Control ◽  
Systems Analysis ◽  
Time Scale ◽  
Open Systems ◽  
Dianchi Lake ◽  
Control Parameters ◽  
Local Conditions ◽  
Control Techniques ◽  
Main Factors ◽  
And Control

The aquatic ecosystem of lake is a complex open systems, this study that is based on the principles of maximum flux selects Caohai as the object, we apply complex systems analysis to construct eutropication model which is suitable for local conditions and select a larger time scale and control parameters to simulate the eutrophication status to find out the main factors and to put forward reasonable proposals for giving out optimal control techniques. This model can be expanded in time scale, spatial scale and the number of parameters, while the difficulty of calculation and analysis will not be increased. The trend and influencing factors of the system will be got at the same time.

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