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Manipulations With Spatially Compressed Slow Light Pulses In Bose Einstein Condensates
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Book Synopsis Manipulations with Spatially Compressed Slow Light Pulses in Bose-Einstein Condensates by : Naomi Shauna Ginsberg
Download or read book Manipulations with Spatially Compressed Slow Light Pulses in Bose-Einstein Condensates written by Naomi Shauna Ginsberg and published by . This book was released on 2007 with total page 192 pages. Available in PDF, EPUB and Kindle. Book excerpt: We present experimental and theoretical methods for and results of manipulating Bose-Einstein condensates (BECs) with spatially compressed slow light pulses. These involve investigations into both the superfluid and coherent natures of the condensates.
Book Synopsis Ultra-slow, Stopped, and Compressed Light in Bose-Einstein Condensates by : Zachary Dutton
Download or read book Ultra-slow, Stopped, and Compressed Light in Bose-Einstein Condensates written by Zachary Dutton and published by . This book was released on 2002 with total page 355 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Nonlinear Localization, Controlled Transport and Collapse Suppression in Bose-Einstein Condensates by : Jasur Abdullaev
Download or read book Nonlinear Localization, Controlled Transport and Collapse Suppression in Bose-Einstein Condensates written by Jasur Abdullaev and published by . This book was released on 2014 with total page 216 pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis includes theoretical studies regarding stability and manipulation of Bose-Einstein condensates (BECs) of ultra-cold atoms in 2D trapping geometry, as well as formation of steady states of exciton-polariton Bose-Einstein condensates created in solid states. We analyze and numerically model the dynamics and localization of the condensates using mean-field model. Chapter 1 contains an introduction to the physics of ultra-cold atom BEC and excitonpolariton BEC which provides a framework for the work presented in later chapters. In Chapter 2, we consider a method for achieving dynamically controllable transport of highly mobile matter-wave solitons in an ultra-cold atom BEC with attractive interparticle interaction loaded into a driven two-dimensional optical lattice. Our numerical analysis based on the mean-field model and the theory based on the effective particle approach demonstrate that fast, time-periodic rocking of the two-dimensional optical lattice enables efficient stabilization and manipulation of spatially localized matter wave packets via induced reconfigurable mobility channels. Chapter 3 consists of an investigation of the instability - collapse of a BEC with attractive interactions. In this chapter we explore the influence of an orbital angular momentum on the collapse of vortex-free elliptic clouds of Bose-Einstein condensates trapped in a radially symmetric harmonic potential or a rotating elliptic potential. The results of our analysis show that the number of trapped ultracold atoms corresponding to the collapse threshold can be radically increased for such rotating nonlinear matter waves in a radially harmonic trap. The results corresponding to a BEC cloud confined in a rotating elliptic trap show that the elongated stationary states can be parallel or perpendicular to the long axis of the trap and display bistable nature. In Chapter 4, we examine spatial localization and dynamical stability of Bose-Einstein condensates of exciton-polaritons in microcavities under the condition of off-resonant spatially inhomogeneous optical pumping both with and without a harmonic trapping potential. We employ the open-dissipative Gross-Pitaevskii model for describing an incoherently pumped polariton condensate coupled to an exciton reservoir. We reveal that spatial localization of the steady-state condensate occurs due to effective self-trapping created by the polariton flows, regardless of the presence of the external potential. A ground state of the polariton condensate with repulsive interactions between the quasiparticles represents a dynamically stable bright dissipative soliton. We also investigate the conditions for sustaining spatially localized structures, with nonzero angular momentum, in the form of single-charge vortices. Chapter 5 consider the existence of novel spatially localized states of exciton-polariton Bose-Einstein condensates in semiconductor microcavities with fabricated periodic inplane potentials. Our theory shows that, under the conditions of continuous nonresonant pumping, localization is observed for a wide range of optical pump parameters due to effective potentials self-induced by the polariton flows in the spatially periodic system. We show that the self-localization of exciton-polaritons in the lattice may occur both in the gaps and bands of the single-particle linear spectrum, and is dominated by the effects of gain and dissipation rather than the structured potential, in sharp contrast to the conservative condensates of ultra-cold alkali atoms.
Book Synopsis Manipulating Bose-Einstein Condensates with Laser Light by : Shin Inouye
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.
Book Synopsis Bose-Einstein Condensates and Atom Lasers by : S. Martellucci
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).
Book Synopsis McGraw-Hill 2003 Yearbook of Science & Technology by : McGraw-Hill
Download or read book McGraw-Hill 2003 Yearbook of Science & Technology written by McGraw-Hill and published by Mcgraw-hill. This book was released on 2003-01-21 with total page 526 pages. Available in PDF, EPUB and Kindle. Book excerpt: Expertly edited and well illustrated for ease of understanding, the Yearbook satisfies the need of students and scientifically interested general readers as well as professionals to stay up to date on the most important current developments in science, engineering and technology. It contains approximately 170 articles by the world’s leaders in science and technology and provides concise yet authoritative reviews of the progress and significance of research on topics from Agribiotechnology to Zoonoses. References to Encyclopedia articles and scientific literature facilitate further study. The Yearbook features: Approximately 170 articles from leaders in scientific and technical disciplines from astronomy to zoology Up-to-date coverage in forefront areas such as bio-technology, cosmology, environmental science and technology, information technology, molecular medicine, telecommunications, and theoretical physics 300 images and two colour graphics enhance the text Features numerous cross-references to the Encyclopedia and bibliographies of key literature after each article An extensive subject index makes finding information a snap
Book Synopsis Bose-Einstein Condensates by : Paige E. Matthews
Download or read book Bose-Einstein Condensates written by Paige E. Matthews and published by . This book was released on 2010 with total page 265 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Optics in Our Time by : Mohammad D. Al-Amri
Download or read book Optics in Our Time written by Mohammad D. Al-Amri and published by Springer. This book was released on 2016-12-12 with total page 509 pages. Available in PDF, EPUB and Kindle. Book excerpt: Light and light based technologies have played an important role in transforming our lives via scientific contributions spanned over thousands of years. In this book we present a vast collection of articles on various aspects of light and its applications in the contemporary world at a popular or semi-popular level. These articles are written by the world authorities in their respective fields. This is therefore a rare volume where the world experts have come together to present the developments in this most important field of science in an almost pedagogical manner. This volume covers five aspects related to light. The first presents two articles, one on the history of the nature of light, and the other on the scientific achievements of Ibn-Haitham (Alhazen), who is broadly considered the father of modern optics. These are then followed by an article on ultrafast phenomena and the invisible world. The third part includes papers on specific sources of light, the discoveries of which have revolutionized optical technologies in our lifetime. They discuss the nature and the characteristics of lasers, Solid-state lighting based on the Light Emitting Diode (LED) technology, and finally modern electron optics and its relationship to the Muslim golden age in science. The book’s fourth part discusses various applications of optics and light in today's world, including biophotonics, art, optical communication, nanotechnology, the eye as an optical instrument, remote sensing, and optics in medicine. In turn, the last part focuses on quantum optics, a modern field that grew out of the interaction of light and matter. Topics addressed include atom optics, slow, stored and stationary light, optical tests of the foundation of physics, quantum mechanical properties of light fields carrying orbital angular momentum, quantum communication, and Wave-Particle dualism in action.
Book Synopsis Laser Cooling and Trapping by : Harold J. Metcalf
Download or read book Laser Cooling and Trapping written by Harold J. Metcalf and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 329 pages. Available in PDF, EPUB and Kindle. Book excerpt: Intended for advanced undergraduates and beginning graduates with some basic knowledge of optics and quantum mechanics, this text begins with a review of the relevant results of quantum mechanics, before turning to the electromagnetic interactions involved in slowing and trapping atoms and ions, in both magnetic and optical traps. The concluding chapters discuss a broad range of applications, from atomic clocks and studies of collision processes, to diffraction and interference of atomic beams at optical lattices and Bose-Einstein condensation.
Book Synopsis Collected Papers of Carl Wieman by : Carl E. Wieman
Download or read book Collected Papers of Carl Wieman written by Carl E. Wieman and published by World Scientific. This book was released on 2008 with total page 827 pages. Available in PDF, EPUB and Kindle. Book excerpt: Carl Wieman's contributions have had a major impact on defining the field of atomic physics as it exists today. His ground-breaking research has included precision laser spectroscopy; using lasers and atoms to provide important table-top tests of theories of elementary particle physics; the development of techniques to cool and trap atoms using laser light, particularly in inventing much simpler, less expensive ways to do this; the understanding of how atoms interact with one another and light at ultracold temperatures; and the creation of the first Bose-Einstein condensation in a dilute gas, and the study of the properties of this condensate. In recent years, he has also turned his attention to physics education and new methods and research in that area. This indispensable volume presents his collected papers, with annotations from the author, tracing his fascinating research path and providing valuable insight about the significance of the works.
Book Synopsis Many-Particle Entanglement, Einstein-Podolsky-Rosen Steering and Bell Correlations in Bose-Einstein Condensates by : Matteo Fadel
Download or read book Many-Particle Entanglement, Einstein-Podolsky-Rosen Steering and Bell Correlations in Bose-Einstein Condensates written by Matteo Fadel and published by Springer Nature. This book was released on 2021-10-04 with total page 191 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents theoretical methods and experimental results on the study of multipartite quantum correlations in spin-squeezed Bose–Einstein condensates. Nonclassical correlations in many-body systems are particularly interesting for both fundamental research and practical applications. For their investigation, ultracold atomic ensembles offer an ideal platform, due to their high controllability and long coherence times. In particular, we introduce criteria for detecting and characterizing multipartite entanglement, Einstein–Podolsky–Rosen steering, and Bell correlations. Moreover, we present the experimental observation of such correlations in systems of about 600 atoms.
Book Synopsis Superfluidity and Superconductivity by : David R. Tilley
Download or read book Superfluidity and Superconductivity written by David R. Tilley and published by CRC Press. This book was released on 1986 with total page 450 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Introduction to Quantum Optics by : Gilbert Grynberg
Download or read book Introduction to Quantum Optics written by Gilbert Grynberg and published by . This book was released on 2010 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Covering a number of important subjects in quantum optics, this textbook is an excellent introduction for advanced undergraduate and beginning graduate students, familiarizing readers with the basic concepts and formalism as well as the most recent advances. The first part of the textbook covers the semi-classical approach where matter is quantized, but light is not. It describes significant phenomena in quantum optics, including the principles of lasers. The second part is devoted to the full quantum description of light and its interaction with matter, covering topics such as spontaneous emission, and classical and non-classical states of light. An overview of photon entanglement and applications to quantum information is also given. In the third part, non-linear optics and laser cooling of atoms are presented, where using both approaches allows for a comprehensive description. Each chapter describes basic concepts in detail, and more specific concepts and phenomena are presented in 'complements'.
Book Synopsis The BCS-BEC Crossover and the Unitary Fermi Gas by : Wilhelm Zwerger
Download or read book The BCS-BEC Crossover and the Unitary Fermi Gas written by Wilhelm Zwerger and published by Springer Science & Business Media. This book was released on 2011-10-22 with total page 543 pages. Available in PDF, EPUB and Kindle. Book excerpt: Recent experimental and theoretical progress has elucidated the tunable crossover, in ultracold Fermi gases, from BCS-type superconductors to BEC-type superfluids. The BCS-BEC Crossover and the Unitary Fermi Gas is a collaborative effort by leading international experts to provide an up-to-date introduction and a comprehensive overview of current research in this fast-moving field. It is now understood that the unitary regime that lies right in the middle of the crossover has remarkable universal properties, arising from scale invariance, and has connections with fields as diverse as nuclear physics and string theory. This volume will serve as a first point of reference for active researchers in the field, and will benefit the many non-specialists and graduate students who require a self-contained, approachable exposition of the subject matter.
Book Synopsis Laser Physics at the Limits by : Hartmut Figger
Download or read book Laser Physics at the Limits written by Hartmut Figger and published by Springer Science & Business Media. This book was released on 2013-06-29 with total page 525 pages. Available in PDF, EPUB and Kindle. Book excerpt: Published on the occasion of Theodor Hänsch's 60th Birthday emphasis is placed on precision related to results in a variety of fields, such as atomic clocks, frequency standards, and the measurement of physical constants in atomic physics. Furthermore, illustrations and engineering applications of the fundamentals of quantum mechanics are widely covered. It has contributions by Nobel prize winners Norman F. Ramsey, Steven Chu, and Carl E. Wieman.
Book Synopsis Condensazione Di Bose-Einstein Nei Gas Atomici by : M. Inguscio
Download or read book Condensazione Di Bose-Einstein Nei Gas Atomici written by M. Inguscio and published by . This book was released on 1999 with total page 674 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Fast Light, Slow Light and Left-Handed Light by : P.W. Milonni
Download or read book Fast Light, Slow Light and Left-Handed Light written by P.W. Milonni and published by CRC Press. This book was released on 2004-11-30 with total page 272 pages. Available in PDF, EPUB and Kindle. Book excerpt: The propagation of light in dispersive media is a subject of fundamental as well as practical importance. In recent years attention has focused in particular on how refractive index can vary with frequency in such a way that the group velocities of optical pulses can be much greater or much smaller than the speed of light in vacuum, or in which the refractive index can be negative. Treating these topics at an introductory to intermediate level, Fast Light, Slow Light and Left-Handed Light focuses on the basic theory and describes the significant experimental progress made during the past decade. The book pays considerable attention to the fact that superluminal group velocities are not in conflict with special relativity and to the role of quantum effects in preventing superluminal communication and violations of Einstein causality. It also explores some of the basic physics at the opposite extreme of very slow group velocities as well as stopped and regenerated light, including the concepts of electromagnetically induced transparency and dark-state polaritons. Another very active aspect of the subject discussed concerns the possibility of designing metamaterials in which the refractive index can be negative and propagating light is left-handed in the sense that the phase and group velocities are in opposite directions. The last two chapters are an introduction to some of the basic theory and consequences of negative refractive index, with emphasis on the seminal work carried out since 2000. The possibility that "perfect" lenses can be made from negative-index metamaterials-which has been perhaps the most controversial aspect of the field-is introduced and discussed in some detail.
