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Gong, Linchen; Li, Ming; Ou-Yang, Zhong-can; Li, M , Chinese Acad Sci, Grad Univ, Coll Phys Sci, Beijing 100190, Peoples R China
Investigation on Energetic Optimization Problems of Stochastic Thermodynamics with Iterative Dynamic Programming
Source PublicationCOMMUNICATIONS IN COMPUTATIONAL PHYSICS
KeywordMolecular Motors Efficiency Dna Machines Engines Model
AbstractThe energetic optimization problem, e.g., searching for the optimal switching protocol of certain system parameters to minimize the input work, has been extensively studied by stochastic thermodynamics. In this work, we study this problem numerically using iterative dynamic programming. The model systems under investigation are toy actuators consisting of spring-linked beads with loading force imposed on both ending beads. For the simplest case, i.e., a one-spring actuator driven by tuning the stiffness of the spring, we compare the optimal control protocol of the stiffness for both the overdamped and the underdamped situations, and discuss how inertial effects alter the irreversibility of the driven process and thus modify the optimal protocol. Then, we study the systems with multiple degrees of freedom by constructing oligomer actuators, in which the harmonic interaction between the two ending beads is tuned externally. With the same rated output work, actuators of different constructions demand different minimal input work, reflecting the influence of the internal degrees of freedom on the performance of the actuators.
2010
ISSN1815-2406
Volume7Issue:5Pages:904-926
Subject AreaPhysics
Indexed BySCI
Funding OrganizationNational Basic Research Program of China (973 Program)[2007CB935903]; NSFC[10847165] ; National Basic Research Program of China (973 Program)[2007CB935903]; NSFC[10847165] ; National Basic Research Program of China (973 Program)[2007CB935903]; NSFC[10847165] ; National Basic Research Program of China (973 Program)[2007CB935903]; NSFC[10847165]
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Document Type期刊论文
Identifierhttp://ir.itp.ac.cn/handle/311006/5115
Collection理论物理所科研产出_SCI论文
Corresponding AuthorLi, M , Chinese Acad Sci, Grad Univ, Coll Phys Sci, Beijing 100190, Peoples R China
Recommended Citation
GB/T 7714
Gong, Linchen,Li, Ming,Ou-Yang, Zhong-can,et al. Investigation on Energetic Optimization Problems of Stochastic Thermodynamics with Iterative Dynamic Programming[J]. COMMUNICATIONS IN COMPUTATIONAL PHYSICS,2010,7(5):904-926.
APA Gong, Linchen,Li, Ming,Ou-Yang, Zhong-can,&Li, M , Chinese Acad Sci, Grad Univ, Coll Phys Sci, Beijing 100190, Peoples R China.(2010).Investigation on Energetic Optimization Problems of Stochastic Thermodynamics with Iterative Dynamic Programming.COMMUNICATIONS IN COMPUTATIONAL PHYSICS,7(5),904-926.
MLA Gong, Linchen,et al."Investigation on Energetic Optimization Problems of Stochastic Thermodynamics with Iterative Dynamic Programming".COMMUNICATIONS IN COMPUTATIONAL PHYSICS 7.5(2010):904-926.
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