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Author : Saverio Bartalini
Publisher :
ISBN 13 :
Total Pages : 144 pages
Book Rating : 4.:/5 (14 download)
Download or read book Magnetic Microtraps for Bose-Einstein Condensation written by Saverio Bartalini and published by . This book was released on 2005 with total page 144 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Bose-Einstein Condensation in a Robust Microtrap -- the Combination of Wire Traps and Atom Chips written by and published by . This book was released on 2003 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: In the presented work, we report about the successful creation of a Rubidium Bose-Einstein condensate. We use so called magnetic wire traps, which are especially simple, as they consist out of a wire and a homogeneous bias field. These wire traps are especially suited for Bose-Einstein condensation. Furthermore complex trapping potentials to manipulate a Bose-Einstein condensate can be realized. We combine 'large' and small scale wire traps. The 'large' scale is realized with a massive copper structure, while for the small wire traps we use the so called atom chip. This combination is promising, because it allowed us to develop a condensation process in the copper structure, which is independent of the structures on the atom chip, and thus the exchange of the 'physics' area. First experiments with the Bose-Einstein condensate are presented and discussed in detail.
Author : Aaron Edward Leanhardt
Publisher :
ISBN 13 :
Total Pages : 298 pages
Book Rating : 4.:/5 (549 download)
Download or read book Microtraps and Waveguides for Bose-Einstein Condensates written by Aaron Edward Leanhardt and published by . This book was released on 2003 with total page 298 pages. Available in PDF, EPUB and Kindle. Book excerpt: (Cont.) Partially condensed atomic vapors were confined by a combination of gravitational and magnetic forces. They were adiabatically decompressed, by weakening the gravito-magnetic trap to a mean frequency of 1 Hz, then evaporatively reduced in size to 2500 atoms. This lowered the peak condensate density to 5 x 1010 atoms/cm3 and cooled the entire cloud in all three dimensions to a kinetic temperature of 450±80 pK.
Download or read book One-dimensional Bose-Einstein Condensates in Micro-traps written by and published by . This book was released on 2005 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: A novel wire-based magneto-optical trap has been demonstrated which enables to collect up to 3x10^8 cold atoms close to the reflecting surface of an atom chip. These atoms are subsequently transferred to micro-traps generated by wires mounted on the atom chip and Bose-Einstein condensation has been achieved. The Bose-Einstein condensates (BECs) created in the micro-traps form in the one-dimensional Thomas-Fermi regime. The cross-over between three-dimensional and one-dimensional BECs has been investigated by monitoring the transverse size of the BEC after ballistic expansion. Good agreement to theory has been found. As an application, one-dimensional BECs have been used to implement a microscopic magnetic field sensor. This sensor enables field measurements in a region which is not accessible for today's state-of-the-art sensors. A field sensitivity of 4 nT at a spatial resolution of 3 micrometer has been demonstrated. To investigate the phase-properties of a one-dimensional BEC, coherent splitting of a one-dimensional BEC has been achieved and interferometry on an atom chip has been demonstrated.
Author : David Hunger
Publisher : Sudwestdeutscher Verlag Fur Hochschulschriften AG
ISBN 13 : 9783838118369
Total Pages : 188 pages
Book Rating : 4.1/5 (183 download)
Download or read book A Bose-Einstein Condensate Coupled to a Micromechanical Oscillator written by David Hunger and published by Sudwestdeutscher Verlag Fur Hochschulschriften AG. This book was released on 2010 with total page 188 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ultracold neutral atoms can be trapped and coherently manipulated close to a surface using chip-based magnetic microtraps. This opens the possibility of studying interactions between atoms and on-chip solid-state systems such as micro- and nanostructured mechanical oscillators. This thesis reports experiments, where a controlled coupling between a Bose-Einstein condensate and a micromechanical oscillator is realized for the first time. The interaction relies on surface forces experienced by the atoms trapped at about 1 micrometer distance from the mechanical structure. The surface forces are used to resonantly couple the mechanical motion of the oscillator to collective motion of the atoms. Coupling via surface forces does not require magnets, electrodes, or mirrors on the oscillator and could thus be employed to couple atoms to molecular-scale oscillators such as carbon nanotubes. In the long-term, the toolbox for quantum manipulation of ultracold atoms could be employed to read out, cool, and coherently manipulate the quantum state of a mechanical oscillator. The thesis discusses three different scenarios that could enable atom-oscillator coupling at the quantum level.
Author : Jakob Reichel
Publisher : John Wiley & Sons
ISBN 13 : 3527643923
Total Pages : 412 pages
Book Rating : 4.5/5 (276 download)
Download or read book Atom Chips written by Jakob Reichel and published by John Wiley & Sons. This book was released on 2011-08-24 with total page 412 pages. Available in PDF, EPUB and Kindle. Book excerpt: This stimulating discussion of a rapidly developing field is divided into two parts. The first features tutorials in textbook style providing self-contained introductions to the various areas relevant to atom chip research. Part II contains research reviews that provide an integrated account of the current state in an active area of research where atom chips are employed, and explore possible routes of future progress. Depending on the subject, the length of the review and the relative weight of the 'review' and 'outlook' parts vary, since the authors include their own personal view and style in their accounts.
Author : Christopher David James Sinclair
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (93 download)
Download or read book Bose-einstein condensation in microtraps on videotape written by Christopher David James Sinclair and published by . This book was released on 2006 with total page 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 : Dian-jiun Han
Publisher :
ISBN 13 :
Total Pages : 308 pages
Book Rating : 4.:/5 (436 download)
Download or read book Bose-Einstein condensation of rubidium-87 atoms in a magnetic trap written by Dian-jiun Han and published by . This book was released on 1998 with total page 308 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Peter Hannaford
Publisher : World Scientific
ISBN 13 : 9812386165
Total Pages : 413 pages
Book Rating : 4.8/5 (123 download)
Download or read book Laser Spectroscopy written by Peter Hannaford and published by World Scientific. This book was released on 2004 with total page 413 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume comprises a collection of invited and selected contributions presented at the 16th International Conference on Laser Spectroscopy in Palm Cove, Queensland, Australia, 13-18 July 2003. The papers report the latest and most exciting developments in laser spectroscopy and related areas: new ultra-precise spectroscopic measurements based on optical frequency combs including tests of the stability of the fundamental constants; the first realization of Bose-Einstein condensation in cesium and ytterbium; the behavior of ultra-cold bosons and fermions in optical lattices; the production of ultra-cold cesium, helium and fermionic lithium molecules; the production and coherent transport of ultra-cold atoms in microtraps on the surface of chips; the implementation of one- and two-qubit quantum algorithms and experiments towards a scalable quantum computer based on trapped ions; and new medical applications of laser spectroscopy.The proceedings have been selected for coverage in: ? Index to Scientific & Technical Proceedings? (ISTP? / ISI Proceedings)? Index to Scientific & Technical Proceedings (ISTP CDROM version / ISI Proceedings)? CC Proceedings ? Engineering & Physical Science
Author : Scott Fraser Owen
Publisher :
ISBN 13 :
Total Pages : 238 pages
Book Rating : 4.:/5 (52 download)
Download or read book Magnetic Trapping for Bose-Einstein Condensation of 87Rb written by Scott Fraser Owen and published by . This book was released on 2002 with total page 238 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Peter Hannaford
Publisher : World Scientific
ISBN 13 : 9814483958
Total Pages : 413 pages
Book Rating : 4.8/5 (144 download)
Download or read book Laser Spectroscopy - Proceedings Of The Xvi International Conference written by Peter Hannaford and published by World Scientific. This book was released on 2004-02-13 with total page 413 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume comprises a collection of invited and selected contributions presented at the 16th International Conference on Laser Spectroscopy in Palm Cove, Queensland, Australia, 13-18 July 2003. The papers report the latest and most exciting developments in laser spectroscopy and related areas: new ultra-precise spectroscopic measurements based on optical frequency combs including tests of the stability of the fundamental constants; the first realization of Bose-Einstein condensation in cesium and ytterbium; the behavior of ultra-cold bosons and fermions in optical lattices; the production of ultra-cold cesium, helium and fermionic lithium molecules; the production and coherent transport of ultra-cold atoms in microtraps on the surface of chips; the implementation of one- and two-qubit quantum algorithms and experiments towards a scalable quantum computer based on trapped ions; and new medical applications of laser spectroscopy.The proceedings have been selected for coverage in:• Index to Scientific & Technical Proceedings® (ISTP® / ISI Proceedings)• Index to Scientific & Technical Proceedings (ISTP CDROM version / ISI Proceedings)• CC Proceedings — Engineering & Physical Sciences
Author :
Publisher : Academic Press
ISBN 13 : 0128028688
Total Pages : 399 pages
Book Rating : 4.1/5 (28 download)
Download or read book Concepts of Mathematical Physics in Chemistry: A Tribute to Frank E. Harris - Part A written by and published by Academic Press. This book was released on 2015-08-06 with total page 399 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume presents a series of articles concerning current important topics in quantum chemistry. - Presents surveys of current topics in this rapidly-developing field that has emerged at the cross section of the historically established areas of mathematics, physics, chemistry, and biology - Features detailed reviews written by leading international researchers
Author : Klaus D. Sattler
Publisher : CRC Press
ISBN 13 : 1466505095
Total Pages : 766 pages
Book Rating : 4.4/5 (665 download)
Download or read book Fundamentals of Picoscience written by Klaus D. Sattler and published by CRC Press. This book was released on 2013-09-26 with total page 766 pages. Available in PDF, EPUB and Kindle. Book excerpt: Now ubiquitous in public discussions about cutting-edge science and technology, nanoscience has generated many advances and inventions, from the development of new quantum mechanical methods to far-reaching applications in electronics and medical diagnostics. Ushering in the next technological era, Fundamentals of Picoscience focuses on the instrumentation and experiments emerging at the picometer scale. One picometer is the length of a trillionth of a meter. Compared to a human cell of typically ten microns, this is roughly ten million times smaller. In this state-of-the-art book, international scientists and researchers at the forefront of the field present the materials and methods used at the picoscale. They address the key challenges in developing new instrumentation and techniques to visualize and measure structures at this sub-nanometer level. With numerous figures, the book will help you: Understand how picoscience is an extension of nanoscience Determine which experimental technique to use in your research Connect basic studies to the development of next-generation picoelectronic devices The book covers various approaches for detecting, characterizing, and imaging at the picoscale. It then presents picoscale methods ranging from scanning tunneling microscopy (STM) to spectroscopic approaches at sub-nanometer spatial and energy resolutions. It also covers novel picoscale structures and picometer positioning systems. The book concludes with picoscale device applications, including single molecule electronics and optical computers. Introductions in each chapter explain basic concepts, define technical terms, and give context to the main material.
Author : Matthias Weidemüller
Publisher : John Wiley & Sons
ISBN 13 : 9783527403899
Total Pages : 522 pages
Book Rating : 4.4/5 (38 download)
Download or read book Interactions in Ultracold Gases written by Matthias Weidemüller and published by John Wiley & Sons. This book was released on 2003-05-07 with total page 522 pages. Available in PDF, EPUB and Kindle. Book excerpt: Arising from a workshop, this book surveys the physics of ultracold atoms and molecules taking into consideration the latest research on ultracold phenomena, such as Bose Einstein condensation and quantum computing. Several reputed authors provide an introduction to the field, covering recent experimental results on atom and molecule cooling as well as the theoretical treatment.
Author : Stephan Wildermuth
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (139 download)
Download or read book One-dimensional Bose-Einstein Condensates in Micro-traps written by Stephan Wildermuth and published by . This book was released on 2005 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Hossein R Sadeghpour
Publisher : World Scientific
ISBN 13 : 9814487031
Total Pages : 377 pages
Book Rating : 4.8/5 (144 download)
Download or read book Expanding Frontier Of Atomic Physics, The - Proceedings Of The Xviii International Conference On Atomic Physics written by Hossein R Sadeghpour and published by World Scientific. This book was released on 2003-04-29 with total page 377 pages. Available in PDF, EPUB and Kindle. Book excerpt: This important proceedings volume highlights the major scientific achievement of the last decade in atomic physics, namely the creation of the gaseous Bose-Einstein condensate, which was featured prominently at the XVIII International Conference on Atomic Physics (ICAP2002). Two recipients of the 2001 Nobel Prize delivered lectures at the meeting. Among the topics discussed were novel processes leading to degenerate Fermi gases in atom traps, creation of cold molecules, condensates in optical lattices, atoms in intense fields, tests of fundamental symmetries, quantum control and information, time and frequency standards.
