Quantum Network with Multiple Cold Atomic Ensembles
Quantum Network with Multiple Cold Atomic Ensembles

Author: Bo Jing

Publisher: Springer Nature

Published: 2022-03-16

Total Pages: 197

ISBN-13: 981190328X

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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.

Broad Bandwidth and High Dimensional Quantum Memory Based on Atomic Ensembles
Broad Bandwidth and High Dimensional Quantum Memory Based on Atomic Ensembles

Author: Dong-Sheng Ding

Publisher: Springer

Published: 2017-12-26

Total Pages: 136

ISBN-13: 9811074763

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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.

Quantum Information
Quantum Information

Author: Dagmar Bruss

Publisher: John Wiley & Sons

Published: 2019-02-05

Total Pages: 1155

ISBN-13: 3527805796

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This comprehensive textbook on the rapidly advancing field introduces readers to the fundamental concepts of information theory and quantum entanglement, taking into account the current state of research and development. It thus covers all current concepts in quantum computing, both theoretical and experimental, before moving on to the latest implementations of quantum computing and communication protocols. It contains problems and exercises and is therefore ideally suited for students and lecturers in physics and informatics, as well as experimental and theoretical physicists in academia and industry who work in the field of quantum information processing. The second edition incorporates important recent developments such as quantum metrology, quantum correlations beyond entanglement, and advances in quantum computing with solid state devices.

Quantum Information with Continuous Variables of Atoms and Light
Quantum Information with Continuous Variables of Atoms and Light

Author: N. J. Cerf

Publisher: World Scientific

Published: 2007

Total Pages: 629

ISBN-13: 1860948162

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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.

Long Distance Entanglement Between Quantum Memories
Long Distance Entanglement Between Quantum Memories

Author: Yong Yu

Publisher: Springer Nature

Published: 2023-01-01

Total Pages: 147

ISBN-13: 9811979391

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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.

Optoelectronics - Recent Advances
Optoelectronics - Recent Advances

Author: Touseef Para

Publisher: BoD – Books on Demand

Published: 2024-03-13

Total Pages: 152

ISBN-13: 1837697965

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Embark on a journey through the cutting-edge world of optoelectronics with Optoelectronics - Recent Advances. This anthology explores the diverse realms of light and electronics, from fundamental insights to groundbreaking advancements. Discover the future of quantum information processing, gold nanorod assembly, and more. This collection of seven chapters brings together leading minds, offering a glimpse into the transformative potential of recent optoelectronic research. Whether you're a curious reader or a seasoned researcher, Optoelectronics - Recent Advances invites you to witness the brilliance where ideas shine bright.

Quantum Nonlinear Optics
Quantum Nonlinear Optics

Author: Eiichi Hanamura

Publisher: Springer Science & Business Media

Published: 2007-07-04

Total Pages: 241

ISBN-13: 3540684840

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This graduate-level textbook gives an introductory overview of the fundamentals of quantum nonlinear optics. It deals with the organization of radiation field, interaction between electronic system and radiation field, statistics of light, and mutual manipulation of light and matter. It also covers laser oscillation, dynamics of light, nonlinear optical response, and nonlinear spectroscopy, as well as ultrashort and ultrastrong laser pulse. In addition, latest results of the frontier of this science are presented. Problems and solutions help the reader to master and review the material.

Quantum Communication: The Physical Layer Of Future Optical Networks
Quantum Communication: The Physical Layer Of Future Optical Networks

Author: Mahdi Hosseini

Publisher: World Scientific

Published: 2023-06-15

Total Pages: 209

ISBN-13: 9811279071

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This book is the second volume in the series New Era Electronics, a compilation of lecture notes defining the important concepts tied to the electronics transition happening in the 21st century. Quantum communication is introduced in this volume through the coverage of relevant, basic concepts of quantum mechanics and the introduction of quantum elements of a quantum optical communication system. Also included is a quantum description of electromagnetic fields and its interaction with atoms to generate, store, measure and control quantum optical information encoded onto optical fields.By taking a conceptual and less mathematical approach to quantum optics and quantum information, this book becomes accessible to broader audiences and engineers working actively in the technical field. The reader is only required to have a basic understanding of undergraduate linear algebra.

Condensed-Matter-Principia Based Information & Statistical Measures
Condensed-Matter-Principia Based Information & Statistical Measures

Author: Adam Gadomski

Publisher: MDPI

Published: 2021-01-20

Total Pages: 166

ISBN-13: 3039367463

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This book summarizes the efforts of ten papers collected by the Special Issue "Condensed-Matter-Principia Based Information & Statistical Measures: From Classical to Quantum". It calls for papers which deal with condensed-matter systems, or their interdisciplinary analogs, for which well-defined classical–statistical vs. quantum information measures can be inferred while based on the entropy concept. The contents have mainly been rested upon objectives addressed by an international colloquium held on October 2019, in UTP Bydgoszcz, Poland (see http://zmpf.imif.utp.edu.pl/rci-jcs/rci-jcs-4/), with an emphasis placed on the achievements of Professor Gerard Czajkowski, who commenced his research activity with open diffusion–reaction systems under the supervision of Roman S. Ingarden (Toruń), a father of Polish synergetics, and original thermodynamic approaches to self-organization. The active cooperation of Professor Czajkowski, mainly with German physicists (Friedrich Schloegl, Aachen; Werner Ebeling, Berlin), ought to be highlighted. In light of this, a development of his research, as it has moved from statistical thermodynamics to solid state theory, pursued in terms of nonlinear solid-state optics (Franco Bassani, Pisa), and culminated very recently with large quasiparticles termed Rydberg excitons, and their coherent interactions with light, is worth delineating.

Quantum State Estimation
Quantum State Estimation

Author: Matteo Paris

Publisher: Springer Science & Business Media

Published: 2004-08-11

Total Pages: 548

ISBN-13: 9783540223290

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This book is a comprehensive survey of most of the theoretical and experimental achievements in the field of quantum estimation of states and operations. Albeit still quite young, this field has already been recognized as a necessary tool for research in quantum optics and quantum information, beyond being a fascinating subject in its own right since it touches upon the conceptual foundations of quantum mechanics. The book consists of twelve extensive lectures that are essentially self-contained and modular, allowing combination of various chapters as a basis for advanced courses and seminars on theoretical or experimental aspects. The last two chapters, for instance, form a self-contained exposition on quantum discrimination problems. The book will benefit graduate students and newcomers to the field as a high-level but accessible textbook, lecturers in search for advanced course material and researchers wishing to consult a modern and authoritative source of reference.