Quantum Network With Multiple Cold Atomic Ensembles
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Quantum Network With Multiple Cold Atomic Ensembles
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Author : Bo Jing
language : en
Publisher: Springer Nature
Release Date : 2022-03-16
Quantum Network With Multiple Cold Atomic Ensembles written by Bo Jing and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on 2022-03-16 with Science categories.
This book highlights the novel research in quantum memory networking, especially quantum memories based on cold atomic ensembles. After discussing the frontiers of quantum networking research and building a DLCZ-type quantum memory with cold atomic ensemble, the author develops the ring cavity enhanced quantum memory and demonstrates a filter-free quantum memory, which significantly improves the photon-atom entanglement. The author then realizes for the first time the GHZ-type entanglement of three separate quantum memories, a building block of 2D quantum repeaters and quantum networks. The author also combines quantum memories and time-resolved measurements, and reports the first multiple interference of three single photons with different colors. The book is of good reference value for graduate students, researchers, and technical personnel in quantum information sciences.
Long Distance Entanglement Between Quantum Memories
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Author : Yong Yu
language : en
Publisher: Springer Nature
Release Date : 2023-01-01
Long Distance Entanglement Between Quantum Memories written by Yong Yu and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on 2023-01-01 with Science categories.
This book highlights novel research work done on cold atom-based quantum networks. Given that one of the main challenges in building the quantum network is the limited entanglement distribution distance, this book presents some state-of-the-art experiments in tackling this challenge and, for the first time, establishes entanglement between quantum memories via metropolitan-scale fiber transmission. This achievement is accomplished by cooperating high-efficiency cold quantum memories, low-loss quantum frequency conversion modules, and long-fiber phase-locking techniques. In the book, the scheme design, experimental setup, data analyses, and numerous technical details are given. Therefore, it suits a broad readership that includes all students, researchers, and technicians who work in quantum information sciences.
Broad Bandwidth And High Dimensional Quantum Memory Based On Atomic Ensembles
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Author : Dong-Sheng Ding
language : en
Publisher: Springer
Release Date : 2017-12-26
Broad Bandwidth And High Dimensional Quantum Memory Based On Atomic Ensembles written by Dong-Sheng Ding and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-12-26 with Science categories.
This thesis presents an experimental study of quantum memory based on cold atomic ensembles and discusses photonic entanglement. It mainly focuses on experimental research on storing orbital angular momentum, and introduces readers to methods for storing a single photon carried by an image or an entanglement of spatial modes. The thesis also discusses the storage of photonic entanglement using the Raman scheme as a step toward implementing high-bandwidth quantum memory. The storage of photonic entanglement is central to achieving long-distance quantum communication based on quantum repeaters and scalable linear optical quantum computation. Addressing this key issue, the findings presented in the thesis are very promising with regard to future high-speed and high-capacity quantum communications.
Foundations Of Quantum Mechanics In The Light Of New Technology Isqm Tokyo 05 Proceedings Of The 8th International Symposium
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Author : Sachio Ishioka
language : en
Publisher: World Scientific
Release Date : 2006-06-27
Foundations Of Quantum Mechanics In The Light Of New Technology Isqm Tokyo 05 Proceedings Of The 8th International Symposium written by Sachio Ishioka and has been published by World Scientific this book supported file pdf, txt, epub, kindle and other format this book has been release on 2006-06-27 with Science categories.
The goal of the 8th International Symposium on Foundations of Quantum Mechanics in the Light of New Technology was to link recent advances in technology with fundamental problems and issues in quantum mechanics with an emphasis on quantum coherence, decoherence, and geometrical phase.The papers collected in this volume cover a wide range of quantum physics, including quantum information and entanglement, quantum computing, quantum-dot systems, the anomalous Hall effect and the spin-Hall effect, spin related phenomena, superconductivity in nano-systems, precise measurements, and fundamental problems. The volume serves both as an excellent reference for experts and a useful introduction for newcomers to the field of quantum coherence and decoherence.
Quantum Information With Continuous Variables Of Atoms And Light
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Author : N. J. Cerf
language : en
Publisher: World Scientific
Release Date : 2007
Quantum Information With Continuous Variables Of Atoms And Light written by N. J. Cerf and has been published by World Scientific this book supported file pdf, txt, epub, kindle and other format this book has been release on 2007 with Science categories.
Quantum information describes the new field which bridges quantum physics and information science. The quantum world allows for completely new architectures and protocols. While originally formulated in continuous quantum variables, the field worked almost exclusively with discrete variables, such as single photons and photon pairs. The renaissance of continuous variables came with European research consortia such as ACQUIRE (Advanced Coherent Quantum Information Research) in the late 1990s, and QUICOV (Quantum Information with Continuous Variables) from 2000OCo2003. The encouraging research results of QUICOV and the new conference series CVQIP (Continuous Variable Quantum Information Processing) triggered the idea for this book. This book presents the state of the art of quantum information with continuous quantum variables. The individual chapters discuss results achieved in QUICOV and presented at the first five CVQIP conferences from 2002OCo2006. Many world-leading scientists working on continuous variables outside Europe also contribute to the book.
Quantum Gas Experiments Exploring Many Body States
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Author : Torma Paivi
language : en
Publisher: World Scientific
Release Date : 2014-09-16
Quantum Gas Experiments Exploring Many Body States written by Torma Paivi and has been published by World Scientific this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014-09-16 with Science categories.
Quantum phenomena of many-particle systems are fascinating in their complexity and are consequently not fully understood and largely untapped in terms of practical applications. Ultracold gases provide a unique platform to build up model systems of quantum many-body physics with highly controlled microscopic constituents. In this way, many-body quantum phenomena can be investigated with an unprecedented level of precision, and control and models that cannot be solved with present day computers may be studied using ultracold gases as a quantum simulator.This book addresses the need for a comprehensive description of the most important advanced experimental methods and techniques that have been developed along with the theoretical framework in a clear and applicable format. The focus is on methods that are especially crucial in probing and understanding the many-body nature of the quantum phenomena in ultracold gases and most topics are covered both from a theoretical and experimental viewpoint, with interrelated chapters written by experts from both sides of research.Graduate students and post-doctoral researches working on ultracold gases will benefit from this book, as well as researchers from other fields who wish to gain an overview of the recent fascinating developments in this very dynamically evolving field. Sufficient level of both detailed high level research and a pedagogical approach is maintained throughout the book so as to be of value to those entering the field as well as advanced researchers. Furthermore, both experimentalists and theorists will benefit from the book; close collaboration between the two are continuously driving the field to a very high level and will be strengthened to continue the important progress yet to be made in the field.
Atomic Entanglement And Decoherence
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Author : Claudiu Genes
language : en
Publisher:
Release Date : 2008
Atomic Entanglement And Decoherence written by Claudiu Genes and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2008 with Science categories.
The generation of entanglement in mesoscopic atomic ensembles is a challenging task for the fields of quantum information, quantum teleportation and precision measurements. A few subsets of such collective entangled states are analyzed in this work: spin squeezed states, Schrodinger cat states and Dicke states. Environmental decoherence is also considered, as it affects the quality of entanglement and a simple formalism for treating cooperative decay of coherence of multilevel atoms is developed and exemplified in a two qubit case.
Single Photon Manipulation
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Author : Keyu Xia
language : en
Publisher: BoD – Books on Demand
Release Date : 2020-11-11
Single Photon Manipulation written by Keyu Xia and has been published by BoD – Books on Demand this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020-11-11 with Technology & Engineering categories.
This short book aims to present basic information about single photons in a quick read but with not many details. For this purpose, it only introduces the basic concept of single photons, the most important method of generating single photons in experiments, and a specific emerging field.
Asymptotic Theory Of Quantum Statistical Inference
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Author : Masahito Hayashi
language : en
Publisher: World Scientific
Release Date : 2005-02-21
Asymptotic Theory Of Quantum Statistical Inference written by Masahito Hayashi and has been published by World Scientific this book supported file pdf, txt, epub, kindle and other format this book has been release on 2005-02-21 with Science categories.
' Quantum statistical inference, a research field with deep roots in the foundations of both quantum physics and mathematical statistics, has made remarkable progress since 1990. In particular, its asymptotic theory has been developed during this period. However, there has hitherto been no book covering this remarkable progress after 1990; the famous textbooks by Holevo and Helstrom deal only with research results in the earlier stage (1960s-1970s). This book presents the important and recent results of quantum statistical inference. It focuses on the asymptotic theory, which is one of the central issues of mathematical statistics and had not been investigated in quantum statistical inference until the early 1980s. It contains outstanding papers after Holevo's textbook, some of which are of great importance but are not available now. The reader is expected to have only elementary mathematical knowledge, and therefore much of the content will be accessible to graduate students as well as research workers in related fields. Introductions to quantum statistical inference have been specially written for the book. Asymptotic Theory of Quantum Statistical Inference: Selected Papers will give the reader a new insight into physics and statistical inference. Contents:Hypothesis TestingQuantum Cramér-Rao Bound in Mixed States ModelQuantum Cramér-Rao Bound in Pure States ModelGroup Symmetric Approach to Pure States ModelLarge Deviation Theory in Quantum EstimationFuther Topics on Quantum Statistical Inference Readership: Graduate students in quantum physics, mathematical physics, and probability and statistics. Keywords:Quantum Information;Estimation Theory;Statistics;Statistical Inference;Mathematical Physics;Asymptotic Theory;Hypothesis TestingReviews:“This book will give the scholars new insight into physics and statistical inference.”Zentralblatt MATH '
Quantum Communication Measurement And Computing Qcmc
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Author : Alexander Lvovsky
language : en
Publisher: American Institute of Physics
Release Date : 2009-05-13
Quantum Communication Measurement And Computing Qcmc written by Alexander Lvovsky and has been published by American Institute of Physics this book supported file pdf, txt, epub, kindle and other format this book has been release on 2009-05-13 with Computers categories.
The volume contains the proceedings of the 2008 International Conference on Quantum Communication, Measurement and Computing. This meeting has been the leading conference in the field for more than two decades. The articles cover quantum information theory, quantum optics, quantum cryptography, experimental tools for quantum information science and related subjects.