Tunneling In Complex Systems

Tunneling In Complex Systems PDF Author: Steve Tomsovic
Publisher: World Scientific
ISBN: 9814496251
Category : Science
Languages : en
Pages : 339

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Book Description
Quantum tunneling is an intriguing phenomenon arising in a multitude of physical contexts. New experiments in systems as wide ranging as superdeformed nuclei, Bose-Einstein condensed gases, and nanomagnetic systems are spurring theoretical studies into the fundamental nature of tunneling. In this volume, the articles include: (i) tunneling out of a metastable state, (ii) coherence between two wells in tunneling contact, (iii) the consequences of the nature of the underlying dynamics (i.e. regular motion, chaos or some mixture) in low-dimensional systems and its connection to newly identified tunneling phenomena such as chaos-assisted tunneling, (iv) nanomagnetic systems with focus on comparing environmental descriptions of nuclear spins and oscillators, (v) solitons in Bose condensates, (vi) tunneling out of the nuclear superdeformed well and its use as a probe of pairing and chaos in excited nuclear states, and (vii) problems linked to the Bose condensed phase of atomic alkali gases.These subjects and others are gathered in six pedagogical courses given during the spring of 1997 at the National Institute of Nuclear Physics program “Tunneling in complex systems”. The purpose of the courses was to give graduate students and postdoctoral researchers exposure to a sampling of such recent theoretical advances and experimental contexts of tunneling as well as a bridge for the communication gaps between researchers in the various fields concerned with tunneling.

Tunneling In Complex Systems

Tunneling In Complex Systems PDF Author: Steve Tomsovic
Publisher: World Scientific
ISBN: 9814496251
Category : Science
Languages : en
Pages : 339

Get Book Here

Book Description
Quantum tunneling is an intriguing phenomenon arising in a multitude of physical contexts. New experiments in systems as wide ranging as superdeformed nuclei, Bose-Einstein condensed gases, and nanomagnetic systems are spurring theoretical studies into the fundamental nature of tunneling. In this volume, the articles include: (i) tunneling out of a metastable state, (ii) coherence between two wells in tunneling contact, (iii) the consequences of the nature of the underlying dynamics (i.e. regular motion, chaos or some mixture) in low-dimensional systems and its connection to newly identified tunneling phenomena such as chaos-assisted tunneling, (iv) nanomagnetic systems with focus on comparing environmental descriptions of nuclear spins and oscillators, (v) solitons in Bose condensates, (vi) tunneling out of the nuclear superdeformed well and its use as a probe of pairing and chaos in excited nuclear states, and (vii) problems linked to the Bose condensed phase of atomic alkali gases.These subjects and others are gathered in six pedagogical courses given during the spring of 1997 at the National Institute of Nuclear Physics program “Tunneling in complex systems”. The purpose of the courses was to give graduate students and postdoctoral researchers exposure to a sampling of such recent theoretical advances and experimental contexts of tunneling as well as a bridge for the communication gaps between researchers in the various fields concerned with tunneling.

Quantum Tunneling in Complex Systems

Quantum Tunneling in Complex Systems PDF Author: Joachim Ankerhold
Publisher: Springer Science & Business Media
ISBN: 3540680748
Category : Science
Languages : en
Pages : 221

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Book Description
In the last two decades remarkable progress has been made in understanding and describing tunneling processes in complex systems in terms of classical trajectories. This book introduces recent concepts and achievements with particular emphasis on a dynamical formulation and relations to specific systems in mesoscopic, molecular, and atomic physics. Advanced instanton techniques, e.g. for decay rates and tunnel splittings, are discussed in the first part. The second part covers current developments for wave-packet tunneling in real-time, and the third part describes thermodynamics and dynamical approaches for barrier transmission in statistical, particularly dissipative systems.

Dynamical Tunneling

Dynamical Tunneling PDF Author: Srihari Keshavamurthy
Publisher: CRC Press
ISBN: 1439816662
Category : Science
Languages : en
Pages : 424

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Book Description
A prominent aspect of quantum theory, tunneling arises in a variety of contexts across several fields of study, including nuclear, atomic, molecular, and optical physics and has led to technologically relevant applications in mesoscopic science. Exploring mechanisms and consequences, Dynamical Tunneling: Theory and Experiment presents the work of i

North American Tunneling 2022 Proceedings

North American Tunneling 2022 Proceedings PDF Author: Paul Madsen
Publisher: Society for Mining, Metallurgy & Exploration
ISBN: 0873355016
Category : Technology & Engineering
Languages : en
Pages : 946

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Book Description
Your timely source for more cost-effective and less disruptive solutions to your underground infrastructure needs. The North American Tunneling Conference is the premier biennial tunneling event for North America, bringing together the brightest, most resourceful, and innovative minds in the tunneling industry. It underscores the important role that the industry plans in the development of underground spaces, transportation and conveyance systems, and other forms of sustainable underground infrastructure. With every conference, the number of attendees and breadth of topics grows. The authors—expert and leaders in the industry—share the latest case histories, expertise, lessons learned, and real-world applications from around the globe. Crafted from a collection of 92 papers presented at the conference, this book takes you deep inside the projects. It includes sections on technology, planning, design, and case histories.

Dynamic Patterns In Complex Systems - Proceedings Of The Conference In Honor Of Hermann Haken's 60th Birthday

Dynamic Patterns In Complex Systems - Proceedings Of The Conference In Honor Of Hermann Haken's 60th Birthday PDF Author: Mandell A J
Publisher: #N/A
ISBN: 9814699799
Category :
Languages : en
Pages : 432

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Book Description


Tunnelling in Molecules

Tunnelling in Molecules PDF Author: Johannes Kästner
Publisher: Royal Society of Chemistry
ISBN: 1839160381
Category : Science
Languages : en
Pages : 398

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Book Description
Quantum tunnelling is one of the strangest phenomena in chemistry, where we see the wave nature of atoms acting in “impossible” ways. By letting molecules pass through the kinetic barrier instead of over it, this effect can lead to chemical reactions even close to the absolute zero, to atypical spectroscopic observations, to bizarre selectivity, or to colossal isotopic effects. Quantum mechanical tunnelling observations might be infrequent in chemistry, but it permeates through all its disciplines producing remarkable chemical outcomes. For that reason, the 21st century has seen a great increase in theoretical and experimental findings involving molecular tunnelling effects, as well as in novel techniques that permit their accurate predictions and analysis. Including experimental, computational and theoretical chapters, from the physical and organic to the biochemistry fields, from the applied to the academic arenas, this new book provides a broad and conceptual perspective on tunnelling reactions and how to study them. Quantum Tunnelling in Molecules is the obligatory stop for both the specialist and those new to this world.

Dynamics of Rail Transit Tunnel Systems

Dynamics of Rail Transit Tunnel Systems PDF Author: Shunhua Zhou
Publisher: Academic Press
ISBN: 0128183837
Category : Technology & Engineering
Languages : en
Pages : 277

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Book Description
Dynamics of Rail Transit Tunnel Systems develops the dynamic theory of a rail transit tunnel system and provides research methods for the evaluation of long-term settlement of rail transit tunnels in soft soil, the service performance of tunnel structures, and the characterization of environmental vibration induced by trains. In recent years, a large number of rail transit tunnels have been constructed and put into operation, particularly in China. To evaluate the time-dependent degradation of tunnel structures and train-induced environmental vibration, a reliable model must be established to determine the dynamic response of a vehicle-track-tunnel-soil system, hence the introduction of this timely resource. - Provides full theoretical background to help the reader gain an in-depth understanding of the various methods used for dynamic analysis of a rail transit tunnel system - Develops the dynamics theory and method of a rail transit tunnel system under the context of challenging engineering problems - Presents methods for analyzing the dynamic responses of rail transit tunnel-soil systems - Looks at problems that need to be solved in the future and proposes potential directions for future research

Introduction to Tunnel Construction

Introduction to Tunnel Construction PDF Author: David Chapman
Publisher: CRC Press
ISBN: 1498766455
Category : Technology & Engineering
Languages : en
Pages : 557

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Book Description
Tunnelling provides a robust solution to a variety of engineering challenges. It is a complex process, which requires a firm understanding of the ground conditions as well as the importance of ground-structure interaction. This book covers the full range of areas related to tunnel construction required to embark upon a career in tunnelling. It also includes a number of case studies related to real tunnel projects, to demonstrate how the theory applies in practice. New features of this second edition include: the introduction of a case study related to Crossrail’s project in London, focussing on the Whitechapel and Liverpool Street station tunnels and including considerations of building tunnels in a congested urban area; and further information on recent developments in tunnel boring machines, including further examples of all the different types of machine as well as multi-mode machines. The coverage includes: Both hard-rock and soft-ground conditions Site investigation, parameter selection, and design considerations Methods of improving the stability of the ground and lining techniques Descriptions of the various main tunnelling techniques Health and safety considerations Monitoring of tunnels during construction Description of the latest tunnel boring machines Case studies with real examples, including Crossrail’s project in London Clear, concise, and heavily illustrated, this is a vital text for final-year undergraduate and MSc students and an invaluable starting point for young professionals and novices in tunnelling.

Handbook on Tunnels and Underground Works

Handbook on Tunnels and Underground Works PDF Author: Emilio Bilotta
Publisher: CRC Press
ISBN: 1000538656
Category : Technology & Engineering
Languages : en
Pages : 414

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Book Description
The book provides a new, global, updated, thorough, clear and practical risk-based approach to tunnelling design and construction methods, and discusses detailed examples of solutions applied to relevant case histories. It is organized in three sequential and integrated volumes: Volume 1: Concept – Basic Principles of Design Volume 2: Construction – Methods, Equipment, Tools and Materials Volume 3: Case Histories and Best Practices The book covers all aspects of tunnelling, giving useful and practical information about design (Volume 1), construction (Volume 2) and best practices (Volume 3). It provides the following features and benefits: updated vision on tunnelling design, tools, materials and construction balanced mix of theory, technology and applied experience different and harmonized points of view from academics, professionals and contractors easy consultation in the form of a handbook risk-oriented approach to tunnelling problems. The tunnelling industry is amazingly widespread and increasingly important all over the world, particularly in developing countries. The possible audience of the book are engineers, geologists, designers, constructors, providers, contractors, public and private customers, and, in general, technicians involved in the tunnelling and underground works industry. It is also a suitable source of information for industry professionals, senior undergraduate and graduate students, researchers and academics.

Outline of Complex Systems Management Theory—Based on Irreversibility of Reductionism Thinking

Outline of Complex Systems Management Theory—Based on Irreversibility of Reductionism Thinking PDF Author: Zhaohan Sheng
Publisher: Springer Nature
ISBN: 9819733618
Category :
Languages : en
Pages : 383

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Book Description