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Author : Mateusz Zawadzki
Publisher :
ISBN 13 :
Total Pages : 368 pages
Book Rating : 4.:/5 (966 download)
Download or read book Bose-Einstein Condensate Manipulation and Interferometry written by Mateusz Zawadzki and published by . This book was released on 2010 with total page 368 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Tarik Berrada
Publisher : Springer
ISBN 13 : 3319272330
Total Pages : 244 pages
Book Rating : 4.3/5 (192 download)
Download or read book Interferometry with Interacting Bose-Einstein Condensates in a Double-Well Potential written by Tarik Berrada and published by Springer. This book was released on 2015-12-17 with total page 244 pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis demonstrates a full Mach–Zehnder interferometer with interacting Bose–Einstein condensates confined on an atom chip. It relies on the coherent manipulation of atoms trapped in a magnetic double-well potential, for which the author developed a novel type of beam splitter. Particle-wave duality enables the construction of interferometers for matter waves, which complement optical interferometers in precision measurement devices, both for technological applications and fundamental tests. This requires the development of atom-optics analogues to beam splitters, phase shifters and recombiners. Particle interactions in the Bose–Einstein condensate lead to a nonlinearity, absent in photon optics. This is exploited to generate a non-classical state with reduced atom-number fluctuations inside the interferometer. This state is then used to study the interaction-induced dephasing of the quantum superposition. The resulting coherence times are found to be a factor of three longer than expected for coherent states, highlighting the potential of entanglement as a resource for quantum-enhanced metrology.
Author : Billy Ian Robertson
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (141 download)
Download or read book High Contrast Measurements with a Bose-Einstein Condensate Atom Interferometer written by Billy Ian Robertson and published by . This book was released on 2016 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Atom interferometry is a next-generation technique of precision measurement that can vastly outperform its optical analogue. These devices utilise the wave nature of atoms to make interferometric measurements of, for example, gravitational and magnetic fields, inertial effects, and the fine-structure constant. The main focus of this thesis is the creation of a general purpose atom interferometer in free space.We create a Bose-Einstein condensate of ~105 87Rb atoms in a crossed-optical dipole trap. The atomic wave function is coherently manipulated using highly tuned pulses comprising off-resonant light that form our atom-optical elements. These atom optics are analogous to the beam splitters and mirrors in an optical interferometer. By controlling the timing and amplitude of the pulses we demonstrate the ability to excite specific momentum states with high efficiency. The tuned atom optics allows for the construction of an atom interferometer in free space. From this we can measure the recoil velocity of an 87Rb atom and calculate the value of the fine structure constant. We also demonstrate the measurement of magnetic field gradients using atom interferometry. A second method of data readout is also demonstrated, known as contrast interferometry.This increases the rate at which information is obtained and decreases the measurement duration from a few hours to a few minutes.Within the vacuum chamber we also have a copper ring which form the basis of an AC coupled ring trap for atoms. The long term goal is to use this as a waveguide for atom interferometry and, whilst not the main focus of this thesis, we present some proof-of-principle type data demonstrating the ring trap. In addition we show the first Kapitza-Dirac splitting of a BEC within the waveguide which forms the first part of a guided atom interferometer.
Author : Shin Inouye
Publisher :
ISBN 13 :
Total Pages : 136 pages
Book Rating : 4.:/5 (54 download)
Download or read book Manipulating Bose-Einstein Condensates with Laser Light written by Shin Inouye and published by . This book was released on 2001 with total page 136 pages. Available in PDF, EPUB and Kindle. Book excerpt: (Cont.) The role of quantum statistics in these enhanced scatterings was studied. It was shown that the macroscopic occupation of a single quantum state is not necessary. These processes are in principle possible for fermionic or non-degenerate samples, provided the atomic ensemble has a sufficiently long coherence time. By moving a focused, far off-resonant laser beam through a condensate, vortex excitations were created in a Bose-Einstein condensate. They were observed as dislocations in the interference fringes formed by the stirred condensate and a second unperturbed condensate. The technique was shown to be a powerful tool to study turbulent superfluid flow.
Author : Panayotis G. Kevrekidis
Publisher : Springer Science & Business Media
ISBN 13 : 3540735917
Total Pages : 398 pages
Book Rating : 4.5/5 (47 download)
Download or read book Emergent Nonlinear Phenomena in Bose-Einstein Condensates written by Panayotis G. Kevrekidis and published by Springer Science & Business Media. This book was released on 2007-12-29 with total page 398 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Author : G.M. Tino
Publisher : IOS Press
ISBN 13 : 161499448X
Total Pages : 807 pages
Book Rating : 4.6/5 (149 download)
Download or read book Atom Interferometry written by G.M. Tino and published by IOS Press. This book was released on 2014-10-16 with total page 807 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since atom interferometers were first realized about 20 years ago, atom interferometry has had many applications in basic and applied science, and has been used to measure gravity acceleration, rotations and fundamental physical quantities with unprecedented precision. Future applications range from tests of general relativity to the development of next-generation inertial navigation systems. This book presents the lectures and notes from the Enrico Fermi school "Atom Interferometry", held in Varenna, Italy, in July 2013. The aim of the school was to cover basic experimental and theoretical aspects and to provide an updated review of current activities in the field as well as main achievements, open issues and future prospects. Topics covered include theoretical background and experimental schemes for atom interferometry; ultracold atoms and atom optics; comparison of atom, light, electron and neutron interferometers and their applications; high precision measurements with atom interferometry and their application to tests of fundamental physics, gravitation, inertial measurements and geophysics; measurement of fundamental constants; interferometry with quantum degenerate gases; matter wave interferometry beyond classical limits; large area interferometers; atom interferometry on chips; and interferometry with molecules. The book will be a valuable source of reference for students, newcomers and experts in the field of atom interferometry.
Author : Christian Groß
Publisher : Springer Science & Business Media
ISBN 13 : 3642256376
Total Pages : 123 pages
Book Rating : 4.6/5 (422 download)
Download or read book Spin Squeezing and Non-linear Atom Interferometry with Bose-Einstein Condensates written by Christian Groß and published by Springer Science & Business Media. This book was released on 2012-01-12 with total page 123 pages. Available in PDF, EPUB and Kindle. Book excerpt: Interferometry, the most precise measurement technique known today, exploits the wave-like nature of the atoms or photons in the interferometer. As expected from the laws of quantum mechanics, the granular, particle-like features of the individually independent atoms or photons are responsible for the precision limit, the shot noise limit. However this “classical” bound is not fundamental and it is the aim of quantum metrology to overcome it by employing entanglement among the particles. This work reports on the realization of spin-squeezed states suitable for atom interferometry. Spin squeezing was generated on the basis of motional and spin degrees of freedom, whereby the latter allowed the implementation of a full interferometer with quantum-enhanced precision.
Author : Christopher Hugh Carson
Publisher :
ISBN 13 :
Total Pages : 384 pages
Book Rating : 4.:/5 (966 download)
Download or read book High Contrast Interferometry and Finite Temperature Coherence of Bose-Einstein Condensates written by Christopher Hugh Carson and published by . This book was released on 2015 with total page 384 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Richard M. Weiner
Publisher :
ISBN 13 :
Total Pages : 272 pages
Book Rating : 4.3/5 (91 download)
Download or read book Introduction to Bose - Einstein Correlations and Subatomic Interferometry written by Richard M. Weiner and published by . This book was released on 2000-04-07 with total page 272 pages. Available in PDF, EPUB and Kindle. Book excerpt: The first textbook on Bose-Einstein correlations and their applications, an interdisciplinary topic bridging particle physics and quantum physics, and currently the centre of considerable interest in high energy physics. Besides its fundamental importance for particle physics, this phenomenon constitutes the main tool for the determination of sizes and lifetimes of particle sources. The contents of this book are divided into the following chapters, each of which concludes with exercises designed to test the reader's understanding of the concepts and theories included therein: The Foundations; Hadron Interferometry; Currents; Sources; Applications to Ultrarelativistic Nucleus-Nucleus Collisions; Correlations and Multiplicity Distributions; Photos versus Hadrons. It provides the first systematic analysis and comparison of the different theoretical approaches to the subject and will be invaluable to theorists and experimentalists in particle and nuclear physics, quantum optics and astrophysics.
Author :
Publisher :
ISBN 13 :
Total Pages : 440 pages
Book Rating : 4.:/5 (226 download)
Download or read book A Theoretical Analysis of Bose-Einstein Condensate Based Beamsplitters, Interferometers, and Transistors written by and published by . This book was released on 2008 with total page 440 pages. Available in PDF, EPUB and Kindle. Book excerpt: Abstract: Over the last several years considerable efforts have been made to develop Bose-Einstein condensate (BEC) based devices for a number of applications including fundamental research, precision measurements, and navgation systems. These devices, capable of complex functionality, can be built from simpler components which is currently done in both optics and microelectronics. These components include cold atom equivalents of beamsplitters, mirrors, waveguides, diodes, and transistors. The operation of the individual components must be fully understood before they can be assembled into a more complex device. The primary goal of this dissertation is to present a theoretical analysis of these components. It begins with a theoretical analysis of several different types of cold-atom beamsplitters in the context of BEC interferometry. Next, the dynamics of an interferometer that uses optical pulses to control the dynamics of the BEC will be presented. Finally, a proposal for a BEC based component that has behavior that is similar to an electronic transistor is introduced.
Author : Christian Gross
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (649 download)
Download or read book Spin Squeezing and Non-linear Atom Interferometry with Bose-Einstein Condensates written by Christian Gross and published by . This book was released on 2010 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : S. Martellucci
Publisher : Springer
ISBN 13 :
Total Pages : 344 pages
Book Rating : 4.3/5 (91 download)
Download or read book Bose-Einstein Condensates and Atom Lasers written by S. Martellucci and published by Springer. This book was released on 2000-10-31 with total page 344 pages. Available in PDF, EPUB and Kindle. Book excerpt: Annotation Physics researchers survey the methods used to produce, manipulate, and study the condensate in dilute atomic gases, which have generated a lot of excitement since their experimental demonstration in 1995. They emphasize the anticipated development of new types of sources for the novel macroscopic quantum system of coherent atoms. Such sources are looking more and more similar to the various types of lasers--pulsed, CW, mode locked--and likely to produce a revolution similar to that sparked by lasers four decades previously. The 23 papers comprise the proceedings of an international school of quantum electronics held in Erice, Italy in October 1999. Annotation c. Book News, Inc., Portland, OR (booknews.com).
Author : Michael C. Davis
Publisher :
ISBN 13 :
Total Pages : 130 pages
Book Rating : 4.:/5 (123 download)
Download or read book Optical Manipulation of Matter-waves in the Context of Bose-Einstein Condensates written by Michael C. Davis and published by . This book was released on 2006 with total page 130 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Martin Charles Kandes
Publisher :
ISBN 13 :
Total Pages : 252 pages
Book Rating : 4.:/5 (458 download)
Download or read book Multimode Interferometry of Bose-Einstein Condensates in a Circular Wave written by Martin Charles Kandes and published by . This book was released on 2009 with total page 252 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Lev Pitaevskii
Publisher : Oxford University Press
ISBN 13 : 0191076686
Total Pages : 567 pages
Book Rating : 4.1/5 (91 download)
Download or read book Bose-Einstein Condensation and Superfluidity written by Lev Pitaevskii and published by Oxford University Press. This book was released on 2016-01-21 with total page 567 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ultracold atomic gases is a rapidly developing area of physics that attracts many young researchers around the world. Written by world renowned experts in the field, this book gives a comprehensive overview of exciting developments in Bose-Einstein condensation and superfluidity from a theoretical perspective. The authors also make sense of key experiments from the past twenty years with a special focus on the physics of ultracold atomic gases. These systems are characterized by a rich variety of features which make them similar to other important systems of condensed matter physics (like superconductors and superfluids). At the same time they exhibit very peculiar properties which are the result of their gaseous nature, the possibility of trapping in a variety of low dimensional and periodical configurations, and of manipulating the two-body interaction. The book presents a systematic theoretical description based on the most successful many-body approaches applied both to bosons and fermions, at equilibrium and out of equilibrium, at zero as well as at finite temperature. Both theorists and experimentalists will benefit from the book, which is mainly addressed to beginners in the field (master students, PhD students, young postdocs), but also to more experienced researchers who can find in the book novel inspirations and motivations as well as new insightful connections. Building on the authors' first book, Bose-Einstein Condensation (Oxford University Press, 2003), this text offers a more systematic description of Fermi gases, quantum mixtures, low dimensional systems and dipolar gases. It also gives further emphasis on the peculiar phenomenon of superfluidity and its key role in many observable properties of these ultracold quantum gases.
Author : C. J. Pethick
Publisher : Cambridge University Press
ISBN 13 : 1139811088
Total Pages : 538 pages
Book Rating : 4.1/5 (398 download)
Download or read book Bose–Einstein Condensation in Dilute Gases written by C. J. Pethick and published by Cambridge University Press. This book was released on 2008-09-11 with total page 538 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Author : Keith Burnett (Ed); Mark Edwar
Publisher : DIANE Publishing
ISBN 13 : 0788137409
Total Pages : 213 pages
Book Rating : 4.7/5 (881 download)
Download or read book Bose-Einstein Condensation written by Keith Burnett (Ed); Mark Edwar and published by DIANE Publishing. This book was released on 1996-12 with total page 213 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
