Author : Lev. P. Pitaevskii
Publisher : Oxford University Press
Page : 392 pages
File Size : 41,58 MB
Release : 2003-04-03
Category : Science
ISBN : 9780198507192
Bose-Einstein Condensation represents a new state of matter and is one of the cornerstones of quantum physics, resulting in the 2001 Nobel Prize. Providing a useful introduction to one of the most exciting field of physics today, this text will be of interest to a growing community of physicists, and is easily accessible to non-specialists alike.
Author : Christopher Pethick
Publisher :
Page : 584 pages
File Size : 43,95 MB
Release : 2014-05-14
Category : SCIENCE
ISBN : 9781139811781
Introduction to ultracold atomic Bose and Fermi gases for advanced undergraduates, graduates, experimentalists and theorists.
Author : Kaspar Sakmann
Publisher : Springer Science & Business Media
Page : 135 pages
File Size : 46,51 MB
Release : 2011-08-31
Category : Science
ISBN : 3642228666
At extremely low temperatures, clouds of bosonic atoms form what is known as a Bose-Einstein condensate. Recently, it has become clear that many different types of condensates -- so called fragmented condensates -- exist. In order to tell whether fragmentation occurs or not, it is necessary to solve the full many-body Schrödinger equation, a task that remained elusive for experimentally relevant conditions for many years. In this thesis the first numerically exact solutions of the time-dependent many-body Schrödinger equation for a bosonic Josephson junction are provided and compared to the approximate Gross-Pitaevskii and Bose-Hubbard theories. It is thereby shown that the dynamics of Bose-Einstein condensates is far more intricate than one would anticipate based on these approximations. A special conceptual innovation in this thesis are optimal lattice models. It is shown how all quantum lattice models of condensed matter physics that are based on Wannier functions, e.g. the Bose/Fermi Hubbard model, can be optimized variationally. This leads to exciting new physics.
Author : Arafat Almanea
Publisher : LAP Lambert Academic Publishing
Page : 204 pages
File Size : 43,17 MB
Release : 2011-05
Category :
ISBN : 9783844391053
Using the time-splitting spectral method, the time- dependent GPE is discretized further more and different forms of potentials are used to obtain interesting results for trapping in harmonic and different potentials, confined in this work. Spatial and time discretization error analyses for present results were compared with those obtained by other authors for different techniques. Fourth- order time-splitting pseudospectral (TSP), Hermite pseudospectral (HP), Laguerre pseudospectral (LP) and Laguerre-Hermite pseudospectral (LHP) methods are improved which are developed to study GPE of rotating BEC. In all cases the characteristic feature of vortex dynamics and interactions in superconductivity and superfluidity are studied by considering the Ginzburg-Landau-Schrödinger equation (GLSE).Finally, to describe the dynamics of atom laser, the interaction Hamiltonian is derived between the two-level atoms with an electromagnetic field and then introducing the equations of motion. This interaction Hamiltonian is used to describe the outcoupling process in a Raman atom laser.
Author : C. J. Pethick
Publisher : Cambridge University Press
Page : 420 pages
File Size : 35,76 MB
Release : 2002
Category : Science
ISBN : 9780521665803
Problems after each chapter
Author : Mukunda Prasad Das
Publisher : World Scientific
Page : 315 pages
File Size : 21,22 MB
Release : 2000-12-28
Category : Science
ISBN : 9814491985
Bose-Einstein condensation of dilute gases is an exciting new field of interdisciplinary physics. The eight chapters in this volume introduce its theoretical and experimental foundations. The authors are lucid expositors who have also made outstanding contributions to the field. They include theorists Tony Leggett, Allan Griffin and Keith Burnett, and Nobel-Prize-winning experimentalist Bill Phillips. In addition to the introductory material, there are articles treating topics at the forefront of research, such as experimental quantum phase engineering of condensates, the “superchemistry” of interacting atomic and molecular condensates, and atom laser theory.
Author : Lev Petrovich Pitaevskiĭ
Publisher : Oxford University Press
Page : 567 pages
File Size : 23,81 MB
Release : 2016
Category : Science
ISBN : 019875888X
Ultracold atomic gases is a rapidly developing field of physics that attracts many young researchers around the world. This book gives a comprehensive overview of exciting developments in Bose-Einstein condensation and superfluidity from a theoretical perspective and makes sense of key experiments with a special focus on ultracold atomic gases.
Author : Nick P. Proukakis
Publisher : Cambridge University Press
Page : 663 pages
File Size : 21,52 MB
Release : 2017-04-27
Category : Science
ISBN : 1108138624
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.
Author : Matthew John Davis
Publisher :
Page : 384 pages
File Size : 45,26 MB
Release : 2001
Category : Bosons
ISBN :
Author : C. J. Pethick
Publisher : Cambridge University Press
Page : 538 pages
File Size : 42,71 MB
Release : 2008-09-11
Category : Science
ISBN : 1139811088
Since an atomic Bose-Einstein condensate, predicted by Einstein in 1925, was first produced in the laboratory in 1995, the study of ultracold Bose and Fermi gases has become one of the most active areas in contemporary physics. This book explains phenomena in ultracold gases from basic principles, without assuming a detailed knowledge of atomic, condensed matter, and nuclear physics. This new edition has been revised and updated, and includes new chapters on optical lattices, low dimensions, and strongly-interacting Fermi systems. This book provides a unified introduction to the physics of ultracold atomic Bose and Fermi gases for advanced undergraduate and graduate students, as well as experimentalists and theorists. Chapters cover the statistical physics of trapped gases, atomic properties, cooling and trapping atoms, interatomic interactions, structure of trapped condensates, collective modes, rotating condensates, superfluidity, interference phenomena, and trapped Fermi gases. Problems are included at the end of each chapter.
