Bose-Einstein Condensation in Nonlinear System

Bose-Einstein Condensation in Nonlinear System PDF Author: Shōsuke Sasaki
Publisher: Nova Novinka
ISBN: 9781616687540
Category : Science
Languages : en
Pages : 172

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Book Description
Bose--Einstein condensation was discovered in atomic gas systems, where Bose condensate occupies 100% of the total system at zero temperature. Liquid helium systems have been investigated based on the Landau theory, where the superfluid component of liquid helium is background flow. According to the Landau theory, it is doubtful that the superfluid component is a Bose condensate. In experiments, the probability of helium atoms with zero momentum is a few percent of the total liquid helium at ultra-low temperatures. However, the superfluid component occupies 100% of the liquid helium at zero temperature, as macroscopic observations indicate. This book introduces a quasi-particle representing an eigenstate of the total Hamiltonian.

Bose-Einstein Condensation in Nonlinear System

Bose-Einstein Condensation in Nonlinear System PDF Author: Shōsuke Sasaki
Publisher: Nova Novinka
ISBN: 9781616687540
Category : Science
Languages : en
Pages : 172

Get Book

Book Description
Bose--Einstein condensation was discovered in atomic gas systems, where Bose condensate occupies 100% of the total system at zero temperature. Liquid helium systems have been investigated based on the Landau theory, where the superfluid component of liquid helium is background flow. According to the Landau theory, it is doubtful that the superfluid component is a Bose condensate. In experiments, the probability of helium atoms with zero momentum is a few percent of the total liquid helium at ultra-low temperatures. However, the superfluid component occupies 100% of the liquid helium at zero temperature, as macroscopic observations indicate. This book introduces a quasi-particle representing an eigenstate of the total Hamiltonian.

Emergent Nonlinear Phenomena in Bose-Einstein Condensates

Emergent Nonlinear Phenomena in Bose-Einstein Condensates PDF Author: Panayotis G. Kevrekidis
Publisher: Springer Science & Business Media
ISBN: 3540735917
Category : Science
Languages : en
Pages : 398

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Book Description
This book, written by experts in the fields of atomic physics and nonlinear science, covers the important developments in a special aspect of Bose-Einstein condensation, namely nonlinear phenomena in condensates. Topics covered include bright, dark, gap and multidimensional solitons; vortices; vortex lattices; optical lattices; multicomponent condensates; mathematical methods/rigorous results; and the beyond-the-mean-field approach.

Bose-Einstein Condensation of Excitons and Biexcitons

Bose-Einstein Condensation of Excitons and Biexcitons PDF Author: Svi︠a︡toslav Anatolʹevich Moskalenko
Publisher: Cambridge University Press
ISBN: 9780521580991
Category : Science
Languages : en
Pages : 434

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Book Description
Bose-Einstein condensation of excitons is a unique effect in which the electronic states of a solid can self-organize to acquire quantum phase coherence. The phenomenon is closely linked to Bose-Einstein condensation in other systems such as liquid helium and laser-cooled atomic gases. This is the first book to provide a comprehensive survey of this field, covering theoretical aspects as well as recent experimental work. After setting out the relevant basic physics of excitons, the authors discuss exciton-phonon interactions as well as the behaviour of biexcitons. They cover exciton phase transitions and give particular attention to nonlinear optical effects including the optical Stark effect and chaos in excitonic systems. The thermodynamics of equilibrium, quasi-equilibrium, and nonequilibrium systems are examined in detail. The authors interweave theoretical and experimental results throughout the book, and it will be of great interest to graduate students and researchers in semiconductor and superconductor physics, quantum optics, and atomic physics.

Vortices in Bose-Einstein Condensates

Vortices in Bose-Einstein Condensates PDF Author: Amandine Aftalion
Publisher: Springer Science & Business Media
ISBN: 081764492X
Category : Mathematics
Languages : en
Pages : 203

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Book Description
This book provides an up-to-date approach to the diagnosis and management of endocarditis based on a critical analysis of the recent studies. It is the only up-to-date clinically oriented textbook available on this subject. The book is structured in a format that is easy to follow, clinically relevant and evidence based. The author has a special interest in the application of ultrasound in the study of cardiac structure and function.

Schrödinger Equations in Nonlinear Systems

Schrödinger Equations in Nonlinear Systems PDF Author: Wu-Ming Liu
Publisher: Springer
ISBN: 9811365814
Category : Science
Languages : en
Pages : 569

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Book Description
This book explores the diverse types of Schrödinger equations that appear in nonlinear systems in general, with a specific focus on nonlinear transmission networks and Bose–Einstein Condensates. In the context of nonlinear transmission networks, it employs various methods to rigorously model the phenomena of modulated matter-wave propagation in the network, leading to nonlinear Schrödinger (NLS) equations. Modeling these phenomena is largely based on the reductive perturbation method, and the derived NLS equations are then used to methodically investigate the dynamics of matter-wave solitons in the network. In the context of Bose–Einstein condensates (BECs), the book analyzes the dynamical properties of NLS equations with the external potential of different types, which govern the dynamics of modulated matter-waves in BECs with either two-body interactions or both two- and three-body interatomic interactions. It also discusses the method of investigating both the well-posedness and the ill-posedness of the boundary problem for linear and nonlinear Schrödinger equations and presents new results. Using simple examples, it then illustrates the results on the boundary problems. For both nonlinear transmission networks and Bose–Einstein condensates, the results obtained are supplemented by numerical calculations and presented as figures.

Universal Themes of Bose-Einstein Condensation

Universal Themes of Bose-Einstein Condensation PDF Author: Nick P. Proukakis
Publisher: Cambridge University Press
ISBN: 1107085691
Category : Science
Languages : en
Pages : 663

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Book Description
Covering general theoretical concepts and the research to date, this book demonstrates that Bose-Einstein condensation is a truly universal phenomenon.

Bose-Einstein Condensation

Bose-Einstein Condensation PDF Author: Keith Burnett (Ed); Mark Edwar
Publisher: DIANE Publishing
ISBN: 0788137409
Category :
Languages : en
Pages : 213

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Book Description
Among the most remarkable effects that quantum mechanics adds to the catalog of the thermal properties of matter is "condensation" of an ideal gas of identical particles into a single quantum state, the principle of which was discovered in the theory of statistical mechanics by Bose and Einstein in the 1920s. Bose-Einstein condensation (BEC) is a mechanism for producing a macroscopic quantum system, and is exemplary of the macroscopic quantum phenomena of superconductivity and superfluidity.These 15 papers provide an introduction to current work on BEC.

Universal Themes of Bose-Einstein Condensation

Universal Themes of Bose-Einstein Condensation PDF Author: Nick P. Proukakis
Publisher: Cambridge University Press
ISBN: 1108138624
Category : Science
Languages : en
Pages : 663

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Book Description
Following an explosion of research on Bose–Einstein condensation (BEC) ignited by demonstration of the effect by 2001 Nobel prize winners Cornell, Wieman and Ketterle, this book surveys the field of BEC studies. Written by experts in the field, it focuses on Bose–Einstein condensation as a universal phenomenon, covering topics such as cold atoms, magnetic and optical condensates in solids, liquid helium and field theory. Summarising general theoretical concepts and the research to date - including novel experimental realisations in previously inaccessible systems and their theoretical interpretation - it is an excellent resource for researchers and students in theoretical and experimental physics who wish to learn of the general themes of BEC in different subfields.

Quantum Mechanics in Nonlinear Systems

Quantum Mechanics in Nonlinear Systems PDF Author: Xiao-Feng Pang
Publisher: World Scientific
ISBN: 9812561161
Category : Science
Languages : en
Pages : 646

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Book Description
In the history of physics and science, quantum mechanics has served as the foundation of modern science. This book discusses the properties of microscopic particles in nonlinear systems, principles of the nonlinear quantum mechanical theory, and its applications in condensed matter, polymers and biological systems.The book is essentially composed of three parts. The first part presents a review of linear quantum mechanics, as well as theoretical and experimental fundamentals that establish the nonlinear quantum mechanical theory. The theory itself and its essential features are covered in the second part. In the final part, extensive applications of this theory in physics, biology and polymer are introduced. The whole volume forms a complete system of nonlinear quantum mechanics.The book is intended for researchers, graduate students as well as upper-level undergraduates.

The Defocusing Nonlinear SchrÓdinger Equation

The Defocusing Nonlinear SchrÓdinger Equation PDF Author: Panayotis G. Kevrekidis
Publisher: SIAM
ISBN: 1611973945
Category : Mathematics
Languages : en
Pages : 429

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Book Description
Bose?Einstein condensation is a phase transition in which a fraction of particles of a boson gas condenses into the same quantum state known as the Bose?Einstein condensate (BEC). The aim of this book is to present a wide array of findings in the realm of BECs and on the nonlinear SchrÓdinger-type models that arise therein.÷The Defocusing Nonlinear SchrÓdinger Equation÷is a broad study of nonlinear÷excitations in self-defocusing nonlinear media. It summarizes state-of-the-art knowledge on the defocusing nonlinear SchrÓdinger-type models in a single volume and contains a wealth of resources, including over 800 references to relevant articles and monographs and a meticulous index for ease of navigation.