Ion-trap Cavity QED System for Probabilistic Entanglement

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ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (89 download)

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Book Synopsis Ion-trap Cavity QED System for Probabilistic Entanglement by : Nicolas R. Seymour-Smith

Download or read book Ion-trap Cavity QED System for Probabilistic Entanglement written by Nicolas R. Seymour-Smith and published by . This book was released on 2012 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Laser systems and a linear radiofrequency (rf) Paul trap with an integrated co-axial cavity have been developed for experiments in cavity QED and probabilistic entanglement. Single 40Ca+ ions and large Coulomb crystals have been trapped routinely and laser cooled with long trapping lifetimes. A technique to achieve precise overlap of the pseudopotential minimum of the rf-field with the cavity mode has been implemented through variable capacitors in the resonant rf-circuit used to drive the trap. Three-dimensional micromotion compensation has been implemented. An 894 nm laser has been frequency stabilised to a Pound-Drever-Hall cavity which is in turn stabilised to atomic Cs using polarisation spectroscopy. The Allan variance of the error signal has been reduced to less than a kilohertz on timescales greater than a second. A novel implementation of the scanning cavity transfer lock has been developed to transfer the stability of the 894 nm laser to the 397 nm ion cooling and 866 nm repumping lasers. The bandwidth of the system has been increased to 380 Hz and the Allan variance of the error signal has been reduced to less than ten kilohertz on timescales of greater than a second. The pseudopotential minimum of the rf field has been overlapped optimally with the optical cavity mode through mapping of the fluorescence from cavity-field repumped ions as a function of their displacement. Coupling to the cavity mode has been confirmed by observation of resonant fluorescence into the cavity mode using the cavity-assisted Raman transition process. The thesis demonstrates that the setup is ready for the controlled production of single photons with pre-determined polarisation states, and progression onto new schemes to entangle multiple ions that are coupled to the optical cavity mode.

Ion Trap Cavity System for Strongly Coupled Cavity-QED.

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ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (857 download)

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Book Synopsis Ion Trap Cavity System for Strongly Coupled Cavity-QED. by : Elisabeth Brama

Download or read book Ion Trap Cavity System for Strongly Coupled Cavity-QED. written by Elisabeth Brama and published by . This book was released on 2013 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The combination of an ion trap with a high finesse optical cavity is an ideal system for the investigation of strong coupling cavity quantum electrodynamics, and allows the observation of a number of interesting quantum phenomena. To achieve the small mode volumes required without impairing the ion trapping small traps with a short ion electrode distance are needed. Two microscopic linear rf ion traps have been developed and built to accommodate experimental cavities of lengths of several 100 microns. The first trap design, the 'sandwich' trap, was successfully used to trap 40Ca+ - ions for several hours. It was characterised extensively including a measurement of the heating rates of the ions in the trap. Spectroscopy measurements of the cooling transition, as well as the two repumping transitions were carried out. The second trap design, the 'alumina' trap, also successfully trapped 40Ca+ - ions, and a full characterisation of this trap was made. The experimental cavity was installed at a preliminary cavity length distance of 3.7 mm. The cavity characteristics were examined. Finally the trapped ions were overlapped with the cavity mode by adjusting the trap minimum position along the trap axis via dc voltages and the vertical position of the cavity. To progress further a locking scheme for the cavity length as well as a single - photon detection setup are necessary. To achieve strong coupling a reduction of the cavity length will have to be made.

Entangled Systems

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Publisher : John Wiley & Sons
ISBN 13 : 352761916X
Total Pages : 357 pages
Book Rating : 4.5/5 (276 download)

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Book Synopsis Entangled Systems by : Jürgen Audretsch

Download or read book Entangled Systems written by Jürgen Audretsch and published by John Wiley & Sons. This book was released on 2008-09-26 with total page 357 pages. Available in PDF, EPUB and Kindle. Book excerpt: An introductory textbook for advanced students of physics, chemistry and computer science, covering an area of physics that has lately witnessed rapid expansion. The topics treated here include quantum information, quantum communication, quantum computing, teleportation and hidden parameters, thus imparting not only a well-founded understanding of quantum theory as such, but also a solid basis of knowledge from which readers can follow the rapid development of the topic or delve deeper into a more specialized branch of research. Commented recommendations for further reading as well as end-of-chapter problems help the reader to quickly access the theoretical basics of future key technologies.

Computational Complexity

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Publisher : Springer
ISBN 13 : 9781461417996
Total Pages : 0 pages
Book Rating : 4.4/5 (179 download)

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Book Synopsis Computational Complexity by : Robert A. Meyers

Download or read book Computational Complexity written by Robert A. Meyers and published by Springer. This book was released on 2011-10-19 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Complex systems are systems that comprise many interacting parts with the ability to generate a new quality of collective behavior through self-organization, e.g. the spontaneous formation of temporal, spatial or functional structures. These systems are often characterized by extreme sensitivity to initial conditions as well as emergent behavior that are not readily predictable or even completely deterministic. The recognition that the collective behavior of the whole system cannot be simply inferred from an understanding of the behavior of the individual components has led to the development of numerous sophisticated new computational and modeling tools with applications to a wide range of scientific, engineering, and societal phenomena. Computational Complexity: Theory, Techniques and Applications presents a detailed and integrated view of the theoretical basis, computational methods, and state-of-the-art approaches to investigating and modeling of inherently difficult problems whose solution requires extensive resources approaching the practical limits of present-day computer systems. This comprehensive and authoritative reference examines key components of computational complexity, including cellular automata, graph theory, data mining, granular computing, soft computing, wavelets, and more.

Advances in Atomic, Molecular, and Optical Physics

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Publisher : Academic Press
ISBN 13 : 0080554903
Total Pages : 499 pages
Book Rating : 4.0/5 (85 download)

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Book Synopsis Advances in Atomic, Molecular, and Optical Physics by :

Download or read book Advances in Atomic, Molecular, and Optical Physics written by and published by Academic Press. This book was released on 2011-08-09 with total page 499 pages. Available in PDF, EPUB and Kindle. Book excerpt: Volume 55 of the Advances in Atomic, Molecular, and Optical Physics Series contains seven contributions, covering a diversity of subject areas in atomic, molecular and optical physics. In their contribution, Stowe, Thorpe, Pe'er, Ye, Stalnaker, Gerginov, and Diddams explore recent developments in direct frequency comb spectroscopy. Precise phase coherence among successive ultrashort pulses of a frequency comb allows one to probe fast dynamics in the time domain and high-resolution structural information in the frequency domain for both atoms and molecules. The authors provide a detailed review of some of the current applications that exploit the unique features of frequency comb spectroscopy and discuss its future directions. Yurvsky, Olshanii and Weiss review theory and experiment of elongated atom traps that confine ultracold gases in a quasi-one-dimensional regime. Under certain conditions, these quasi-one-dimensional gases are well-described by integrable one-dimensional many-body models with exact quantum solutions. Thermodynamic and correlation properties of one such model that has been experimentally realized are reviewed. DePaola, Morgenstein and Andersen discuss magneto-optical trap recoil ion momentum spectroscopy (MOTRIMS), exploring collisions between a projectile and target resulting in charged target fragments. MOTRIMS combines the technology of laser cooling and trapping of target atoms with the momentum analysis of the charged fragments that recoil from the target. The authors review the different MOTRIMS experimental approaches and the spectroscopic and collisional investigations performed so far. Safronova and Johnson give an overview of atomic many-body perturbation theory and discuss why extensions of the theory are needed. They present "all-order results based on a linearized version of coupled cluster expansions and apply the theory to calculations of energies, transition matrix elements and hyperfine constants. Another contribution on atomic theory, authored by Fischer, explores the advantages of expanding the atomic radial wave functions in a B-spline basis. The differential equations are replaced by non-linear systems of equations and the problems of orthogonality requirements can be dealt with using projection operators. Electron-ion collisional processes are analyzed by Mueller, including descriptions of the experimental techniques needed to obtain cross section data and typical values for these cross sections. The present status of the field is discussed in relation to the detailed cross sections and rate coefficients that are needed for understanding laboratory or astrophysical plasmas. Finally, Duan and Monroe review ways to achieve scalable and robust quantum communication, state engineering, and quantum computation. Using radiation and atoms, ions, or atomic ensembles, they show that they can construct scalable quantum networks that are inherently insensitive to noise. Progress in experimental realization of their proposals is outlined. - International experts - Comprehensive articles - New developments

Elements of Quantum Information

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Publisher : John Wiley & Sons
ISBN 13 : 352761107X
Total Pages : 528 pages
Book Rating : 4.5/5 (276 download)

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Book Synopsis Elements of Quantum Information by : Wolfgang P. Schleich

Download or read book Elements of Quantum Information written by Wolfgang P. Schleich and published by John Wiley & Sons. This book was released on 2007-06-27 with total page 528 pages. Available in PDF, EPUB and Kindle. Book excerpt: 'Elements of Quantum Information' introduces the reader to the fascinating field of quantum information processing, which lives on the interface between computer science, physics, mathematics, and engineering. This interdisciplinary branch of science thrives on the use of quantum mechanics as a resource for high potential modern applications. With its wide coverage of experiments, applications, and specialized topics - all written by renowned experts - 'Elements of Quantum Information' provides an indispensable up-to-date account of the state of the art of this rapidly advancing field and takes the reader straight up to the frontiers of current research. The articles have first appeared as a special issue of the journal 'Fortschritte der Physik/Progress of Physics'. Since then, they have been carefully updated. The book will be an inspiring source of information and insight for anyone researching and specializing in experiments and theory of quantum information.

Quantum Information Processing

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Publisher : John Wiley & Sons
ISBN 13 : 3527606084
Total Pages : 471 pages
Book Rating : 4.5/5 (276 download)

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Book Synopsis Quantum Information Processing by : Thomas Beth

Download or read book Quantum Information Processing written by Thomas Beth and published by John Wiley & Sons. This book was released on 2006-03-06 with total page 471 pages. Available in PDF, EPUB and Kindle. Book excerpt: Quantum processing and communication is emerging as a challenging technique at the beginning of the new millennium. This is an up-to-date insight into the current research of quantum superposition, entanglement, and the quantum measurement process - the key ingredients of quantum information processing. The authors further address quantum protocols and algorithms. Complementary to similar programmes in other countries and at the European level, the German Research Foundation (DFG) realized a focused research program on quantum information. The contributions - written by leading experts - bring together the latest results in quantum information as well as addressing all the relevant questions.

Exploring the Quantum

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Publisher : OUP Oxford
ISBN 13 : 0191523240
Total Pages : 616 pages
Book Rating : 4.1/5 (915 download)

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Book Synopsis Exploring the Quantum by : Serge Haroche

Download or read book Exploring the Quantum written by Serge Haroche and published by OUP Oxford. This book was released on 2006-08-11 with total page 616 pages. Available in PDF, EPUB and Kindle. Book excerpt: The counter-intuitive aspects of quantum physics have been long illustrated by thought experiments, from Einstein's photon box to Schrödinger's cat. These experiments have now become real, with single particles - electrons, atoms, or photons - directly unveiling the strange features of the quantum. State superpositions, entanglement and complementarity define a novel quantum logic which can be harnessed for information processing, raising great hopes for applications. This book describes a class of such thought experiments made real. Juggling with atoms and photons confined in cavities, ions or cold atoms in traps, is here an incentive to shed a new light on the basic concepts of quantum physics. Measurement processes and decoherence at the quantum-classical boundary are highlighted. This volume, which combines theory and experiments, will be of interest to students in quantum physics, teachers seeking illustrations for their lectures and new problem sets, researchers in quantum optics and quantum information.

Los Alamos Science

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ISBN 13 :
Total Pages : 610 pages
Book Rating : 4.F/5 ( download)

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Book Synopsis Los Alamos Science by :

Download or read book Los Alamos Science written by and published by . This book was released on 2002 with total page 610 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Quantum Computation and Quantum Communication:

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Publisher : Springer Science & Business Media
ISBN 13 : 0387289003
Total Pages : 233 pages
Book Rating : 4.3/5 (872 download)

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Book Synopsis Quantum Computation and Quantum Communication: by : Mladen Pavicic

Download or read book Quantum Computation and Quantum Communication: written by Mladen Pavicic and published by Springer Science & Business Media. This book was released on 2007-01-15 with total page 233 pages. Available in PDF, EPUB and Kindle. Book excerpt: The field of quantum computing has experienced rapid development and many different experimental and theoretical groups have emerged worldwide.This book presents the key elements of quantum computation and communication theories and their implementation in an easy-to-read manner for readers coming from physics, mathematics and computer science backgrounds. Integrating both theoretical aspects and experimental verifications of developing quantum computers, the author explains why particular mathematical methods, physical models and realistic implementations might provide critical steps towards achieving the final goal - constructing quantum computers and quantum networks. The book serves as an excellent introduction for new researchers and also provides a useful review for specialists in the field

The Physics of Quantum Information

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Publisher : Springer Science & Business Media
ISBN 13 : 3662042096
Total Pages : 327 pages
Book Rating : 4.6/5 (62 download)

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Book Synopsis The Physics of Quantum Information by : Dirk Bouwmeester

Download or read book The Physics of Quantum Information written by Dirk Bouwmeester and published by Springer Science & Business Media. This book was released on 2013-03-14 with total page 327 pages. Available in PDF, EPUB and Kindle. Book excerpt: Leading experts from "The Physics of Quantum Information" network, initiated by the European Commission, bring together the most recent results from this emerging area of quantum technology. Written in a consistent style as a research monograph, the book introduces quantum cryptography, quantum teleportation, and quantum computation, considering both theory and newest experiments. Both scientists working in the field and advanced students will find a rich source of information on this exciting new area.

Journal of the National Institute of Information and Communications Technology

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Publisher :
ISBN 13 :
Total Pages : 590 pages
Book Rating : 4.3/5 (243 download)

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Book Synopsis Journal of the National Institute of Information and Communications Technology by :

Download or read book Journal of the National Institute of Information and Communications Technology written by and published by . This book was released on 2006 with total page 590 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Coherence and Quantum Optics VIII

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Publisher : Springer Science & Business Media
ISBN 13 : 1441989072
Total Pages : 699 pages
Book Rating : 4.4/5 (419 download)

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Book Synopsis Coherence and Quantum Optics VIII by : N.P. Bigelow

Download or read book Coherence and Quantum Optics VIII written by N.P. Bigelow and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 699 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Eighth Rochester Conference on Coherence and Quantum Optics was held on the campus of the University of Rochester during the period June 13-16,2001. This volume contains the proceedings of the meeting. The meeting was preceded by an affiliated conference, the International Conference on Quantum Information, with some overlapping sessions on June 13. The proceedings of the affiliated conference will be published separately by the Optical Society of America. A few papers that were presented in common plenary sessions of the two conferences will be published in both proceedings volumes. More than 268 scientists from 28 countries participated in the week long discussions and presentations. This Conference differed from the previous seven in the CQO series in several ways, the most important of which was the absence of Leonard Mandel. Professor Mandel died a few months before the conference. A special memorial symposium in his honor was held at the end of the conference. The presentations from that symposium are included in this proceedings volume. An innovation, that we believe made an important contribution to the conference, was the inclusion of a series of invited lectures chaired by CQO founder Emil Wolf, reviewing the history of the fields of coherence and quantum optics before about 1970. These were given by three prominent participants in the development of the field, C. Cohen-Tannoudji, 1. F. Clauser, and R. I. Glauber.

The Nature of Time: Geometry, Physics and Perception

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Publisher : Springer Science & Business Media
ISBN 13 : 9401001553
Total Pages : 441 pages
Book Rating : 4.4/5 (1 download)

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Book Synopsis The Nature of Time: Geometry, Physics and Perception by : R. Buccheri

Download or read book The Nature of Time: Geometry, Physics and Perception written by R. Buccheri and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 441 pages. Available in PDF, EPUB and Kindle. Book excerpt: There are very few concepts that fascinate equally a theoretical physicist studying black holes and a patient undergoing seriolls mental psychosis. Time, undoubtedly, can well be ranked among them. For the measure of time inside a black hole is no less bizarre than the perception of time by a schizophrenic, who may perceive it as completely "suspended," "standing still," or even "reversing its direction. " The nature of time is certainly shrouded in profound mystery. This, perhaps, since the concept entails multifarious, and occasionally incongruous, facets. No wonder the subject attracts the serious attention of scholars on the one hand, and of the lay public on the other. Our Advanced Research Workshop is an excellent il lustration of this point, as the reader will soon discover. It turned out to be a unique professional forum for an unusually lively, effective and fruitful exchange of ideas and beliefs among 48 participants from 20 countries worldwide, selected out of more than a hundred applicants. The present book is based on the select talks presented at the meeting, and aims to provide the interested layperson and specialist alike with a multidisciplinary sampling of the most up-to-date scholarly research on the nature of time. It represents a coherent, state-of-the-art volume showing that research relevant to this topic is necessarily interdisciplinary and does not ignore such delicate issues as "altered" states of consciousness, religion and metaphysics.

Macroscopic Quantum Coherence - Proceedings Of The International Conference

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Publisher : World Scientific
ISBN 13 : 9814545244
Total Pages : 326 pages
Book Rating : 4.8/5 (145 download)

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Book Synopsis Macroscopic Quantum Coherence - Proceedings Of The International Conference by : Yogendra Srivastava

Download or read book Macroscopic Quantum Coherence - Proceedings Of The International Conference written by Yogendra Srivastava and published by World Scientific. This book was released on 1998-12-31 with total page 326 pages. Available in PDF, EPUB and Kindle. Book excerpt: As the end of the nineteenth century neared, it was clear to many in the physics community that if only Newton's equations plus Maxwell's equations could be solved adequately, there would really be nothing very new in physics on a fundamental level. Then came relativity and quantum mechanics. As we now approach the end of the twentieth century, it is clear to many in the physics community that if one could adequately solve somebody's gauge field theory (or somebody else's string model), then nothing fundamentally new would ever again enter into physics. To others in the physics community, it is somewhat doubtful that our present physical understanding of the world, especially of quantum mechanics, has reached such a pinnacle.This conference was organized to discuss the present state of affairs in our knowledge, both experimental and theoretical, of the basic tenets of quantum mechanics. Many fields of physics in which quantum mechanics plays a central role were included: (i) atomic and molecular beams; (ii) photon beams; (iii) atomic interference in atom-surface physics and atom wire physics; (iv) Bose-condensed systems; (v) quantum '1/f' noise; (vi) quantum electrodynamics effects in water, colloidal systems and biological systems; (vii) quantum interference in neutrino physics; (viii) periodic-in-time driven quantum systems; (ix) superconducting quantum circuits; and (x) quantum computer circuit elements.The large variety of different topics, all of current importance, allowed for various viewpoints that are usually not present when conferences devoted to narrower topics are held. The cross-fertilization of ideas was greatly appreciated by the participants, and will be of equal interest to the reader of the proceedings.

Physical Realizations of Quantum Computing

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Publisher : World Scientific
ISBN 13 : 981277470X
Total Pages : 252 pages
Book Rating : 4.8/5 (127 download)

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Book Synopsis Physical Realizations of Quantum Computing by : Mikio Nakahara

Download or read book Physical Realizations of Quantum Computing written by Mikio Nakahara and published by World Scientific. This book was released on 2006 with total page 252 pages. Available in PDF, EPUB and Kindle. Book excerpt: The contributors of this volume are working at the forefront of various realizations of quantum computers. They survey the recent developments in each realization, in the context of the DiVincenzo criteria, including nuclear magnetic resonance, Josephson junctions, quantum dots, and trapped ions. There are also some theoretical contributions which have relevance in the physical realizations of a quantum computer. This book fills the gap between elementary introductions to the subject and highly specialized research papers to allow beginning graduate students to understand the cutting-edge of research in the shortest possible time. Sample Chapter(s). Chapter 1: DiVincenzo Criteria and Beyond (537 KB). Contents: DiVincenzo Criteria and Beyond (M M Salomaa & M Nakahara); Single-Electron Charge and Spin Qubit in Semiconductor Quantum Dots (T Fujisawa); Superconducting Quantum Computing: Status and Prospects (F K Wilhelm & K Semba); Controlling Three Atomic Qubits (H Hnffer et al.); Liquid-State NMR Quantum Computer: Hamiltonian Formalism and Experiments (Y Kondo et al.); Optical Quantum Computation (K Nemoto & W J Munro). Readership: Graduates students and researchers in physics."

Journal of Research of the National Institute of Standards and Technology

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Publisher :
ISBN 13 :
Total Pages : 392 pages
Book Rating : 4.0/5 ( download)

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Book Synopsis Journal of Research of the National Institute of Standards and Technology by :

Download or read book Journal of Research of the National Institute of Standards and Technology written by and published by . This book was released on 1998 with total page 392 pages. Available in PDF, EPUB and Kindle. Book excerpt: