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Author: Miranda Louwerse
Publisher: Springer Nature
ISBN: 303140534X
Category : Science
Languages : en
Pages : 123
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Book Description
This thesis addresses deep questions that cut to the physical and informational essence of central chemical quantities such as transition paths and reaction mechanisms and proposes fundamental new connections between transition-path theory, linear-response theory, nonequilibrium thermodynamics, and information theory. The author investigates slow, energetically efficient driving protocols that drive a system between conformations corresponding to endpoints of a reaction, aiming to find connections between principles of efficient driving and the spontaneous transition mechanism in the absence of driving. First, an alternative perspective of transition-path theory is developed that unifies it with stochastic thermodynamics to describe flows of entropy, energy, and information during the reaction. This also provides an optimization criterion for selecting collective variables. Next, protocols are designed which invert the magnetization of a 3×3 Ising model with minimal energetic cost, and it is determined that using multiple control parameters allows the system to be driven along a fast-relaxing pathway between reaction endpoints. Finally, the author compares these protocols with the spontaneous transition mechanism for magnetization inversion in the same Ising model, finding that designed protocols capture general features of the spontaneous mechanism and energetics given the constraints on the control parameters. This work represents a major step forward in our understanding of rare events and provides a basis for investigating the connection between efficient protocols and spontaneous transition mechanisms which can be further probed in a wider variety of systems.
Author: Miranda Louwerse
Publisher: Springer Nature
ISBN: 303140534X
Category : Science
Languages : en
Pages : 123
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Book Description
This thesis addresses deep questions that cut to the physical and informational essence of central chemical quantities such as transition paths and reaction mechanisms and proposes fundamental new connections between transition-path theory, linear-response theory, nonequilibrium thermodynamics, and information theory. The author investigates slow, energetically efficient driving protocols that drive a system between conformations corresponding to endpoints of a reaction, aiming to find connections between principles of efficient driving and the spontaneous transition mechanism in the absence of driving. First, an alternative perspective of transition-path theory is developed that unifies it with stochastic thermodynamics to describe flows of entropy, energy, and information during the reaction. This also provides an optimization criterion for selecting collective variables. Next, protocols are designed which invert the magnetization of a 3×3 Ising model with minimal energetic cost, and it is determined that using multiple control parameters allows the system to be driven along a fast-relaxing pathway between reaction endpoints. Finally, the author compares these protocols with the spontaneous transition mechanism for magnetization inversion in the same Ising model, finding that designed protocols capture general features of the spontaneous mechanism and energetics given the constraints on the control parameters. This work represents a major step forward in our understanding of rare events and provides a basis for investigating the connection between efficient protocols and spontaneous transition mechanisms which can be further probed in a wider variety of systems.
Author: Igal Brener
Publisher: Woodhead Publishing
ISBN: 0081024037
Category : Technology & Engineering
Languages : en
Pages : 310
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Book Description
Dielectric Metamaterials: Fundamentals, Designs, and Applications links fundamental Mie scattering theory with the latest dielectric metamaterial research, providing a valuable reference for new and experienced researchers in the field. The book begins with a historical, evolving overview of Mie scattering theory. Next, the authors describe how to apply Mie theory to analytically solve the scattering of electromagnetic waves by subwavelength particles. Later chapters focus on Mie resonator-based metamaterials, starting with microwaves where particles are much smaller than the free space wavelengths. In addition, several chapters focus on wave-front engineering using dielectric metasurfaces and the nonlinear optical effects, spontaneous emission manipulation, active devices, and 3D effective media using dielectric metamaterials.
Author: Edward P. Lazear
Publisher: Hoover Press
ISBN: 9780817953430
Category :
Languages : en
Pages : 32
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Book Description
Author: Marangos
Publisher: Transaction Publishers
ISBN: 1412816793
Category :
Languages : en
Pages : 332
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Book Description
Author: Ugo Pagano
Publisher: Routledge
ISBN: 1134800495
Category : Business & Economics
Languages : en
Pages : 352
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Book Description
The collapse of central planning was hailed as evidence of the economic and moral superiority of capitalism over any possible alternative. The essays in this book challenge that claim. The case for more democratic forms of enterprise management is considered from a variety of viewpoints. One chapter deals with the philosophical justification for enterprise democracy. The remaining chapters are devoted to the question of efficiency, which has been central to economic debates about ownership and control. The orthodox belief amongst economists is that any shift to more democratic forms of enterprise control would be unworkable. The essays in this book provide a thorough theoretical and empirical critique of this orthodoxy.
Author: John Marangos
Publisher: Routledge
ISBN: 1351533053
Category : Business & Economics
Languages : en
Pages : 331
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Book Description
The collapse of centrally administered socialism in Russia and Eastern Europe resulted in what is commonly referred to as the transition problem: the transformation from a centrally administered socialist economic system to one that is market-based. Economic science has been faced with the challenge of developing an appropriate body of analysis, advice, and direction to help other nations that may be undergoing this process. In this volume, John Marangos adopts a political economy approach that yields alternative models of transition. The volume develops transition models from what Marangos defines as the primary elements of six variables: (1) economic analysis; (2) definitions of the Good Society; (3) speed of transition; (4) political structure; (5) ideological structure; and (6) initial conditions. The models developed include: the shock therapy model, the neoclassical gradualist model of transition, the post Keynesian model, the pluralistic market, the socialist model, and the non-pluralistic market socialist model. After identifying the primary elements of each transition model, Marangos considers the elements of each model with respect to the desirable reforms. An essential element of the transition process is not only to identify the necessary reforms but also a sequence in which the reforms should be introduced. For each transition model developed in this book, a set of primary and secondary elements were provided in conjunction with a sequence of reforms. Analyzing the transition problem from a political economy perspective, Marangos shows that it is possible to have inconsistencies within each transition model and between transition models yet be able to identify the potential for implementation and maintenance of necessary reforms each model recommends. This volume contributes to the understanding of the process of transition, with the objective of identifying an optimal model of transition.
Author: Sergey V. Gaponenko
Publisher: Cambridge University Press
ISBN: 1107145503
Category : Science
Languages : en
Pages : 453
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Book Description
An accessible yet rigorous introduction to nanophotonics, covering basic principles, technology, and applications in lighting, lasers, and photovoltaics. Providing a wealth of information on materials and devices, and over 150 color figures, it is the 'go-to' guide for students in electrical engineering taking courses in nanophotonics.
Author: Egor Timurovich Gaĭdar
Publisher: MIT Press
ISBN: 9780262072199
Category : Business & Economics
Languages : en
Pages : 1066
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Book Description
This collection of essays discuss the economic policy problems that confront postcommunist countries. Most chapters focus on liberalization of the exchange rate and trade system, macroeconomic stabilization, and institutional reform.
Author: Paul M. Natishan
Publisher: The Electrochemical Society
ISBN: 9781566771795
Category : Science
Languages : en
Pages : 1040
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Book Description
Author: Mr.Jorge Roldos
Publisher: International Monetary Fund
ISBN: 1451922779
Category : Business & Economics
Languages : en
Pages : 26
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Book Description
In this paper we explore some of the informational problems that constrain the development of credit markets in transition economies. We characterize investment patterns under uncertainty and high costs of entry, when agents learn about the ultimate value of enterprises through production in a Bayesian way. Inefficiencies due to the lack of public information reduce the average return to capital. Under asymmetric information, credit would go to activities that can provide enough co-finance. Credit markets may fail to develop for a while if there is not enough individual wealth to complement credit. Once they operate, credit markets may magnify distortions in equity markets, such as those due to spontaneous privatization. An argument for the sequencing of capital market liberalization is provided.
