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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.

Quantum mechanics. Quantumfield theory --- quantumfysica --- Quantum computing. --- Quantum entanglement.

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530.145 --- eigenproblems --- meettechnieken --- quantumfysica --- quantummechanica --- quantumtheorie --- schrödingervergelijkingen --- wiskunde --- Kwantumtheorie --- Quantum theory.

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This book focuses on recent topics of quantum science in both physics and chemistry. Until now, quantum science has not been fully discussed from the interdisciplinary vantage points of both physics and chemistry. This book, however, is written not only for theoretical physicists and chemists, but also for experimentalists in the fields of physical chemistry and condensed matter physics, as collaboration and interplay between construction of quantum theory, and experimentation has become more important. Tips for starting new types of research projects will be found in an understanding of cutting-edge quantum science. In Part I, quantum electronic structures are explained in cases of strongly correlated copper oxides and heavy elements. In Part II, quantum molecular dynamics is investigated by computational approaches and molecular beam experiments. In Part III, after lithium problem in big bang nucleosynthesis scenario is considered using supersymmetric standard model, quantum theories in atomic and molecular systems are reviewed. Finally, in Part IV, the development of quantum computational method is introduced. .

Quantum mechanics. Quantumfield theory --- Experimental nuclear and elementary particle physics --- Nuclear physics --- quantumfysica --- atoomfysica --- Quantum theory.

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Generalized probabilistic theories (GPTs) allow us to write quantum theory in a purely operational language and enable us to formulate other, vastly different theories. As it turns out, there is no canonical way to integrate the notion of subsystems within the framework of convex operational theories. Sections can be seen as generalization of subsystems and describe situations where not all possible observables can be implemented. Jonathan Steinberg discusses the mathematical foundations of GPTs using the language of Archimedean order unit spaces and investigates the algebraic nature of sections. This includes an analysis of the category theoretic structure and the transformation properties of the state space. Since the Hilbert space formulation of quantum mechanics uses tensor products to describe subsystems, he shows how one can interpret the tensor product as a special type of a section. In addition he applies this concept to quantum theory and compares it with the formulation in the algebraic approach. Afterwards he gives a complete characterization of low dimensional sections of arbitrary quantum systems using the theory of matrix pencils. About the author Jonathan Steinberg studied physics and mathematics at the university of Siegen and obtained his M. Sc. in the field of quantum foundations. Currently he investigates the relation between tensor eigenvalues and the quantification of multipartite entanglement under the tutelage of Prof. Otfried Gühne.

Quantum mechanics. Quantumfield theory --- Computer. Automation --- quantumfysica --- quantumcomputers --- Quantum theory --- Probabilities. --- Mathematics.

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This textbook presents a detailed description of basic semiconductor physics, covering a wide range of important phenomena in semiconductors, from simple to advanced. It introduces and explains four different methods of energy band calculations in the full band region and covers fundamental topics such as the effective mass approximation and electron motion in a periodic potential, the Boltzmann transport equation, and deformation potentials used for the analysis of transport properties. The text also examines experimental and theoretical analyses of cyclotron resonance in detail and reviews essential optical and transport properties, while covering optical transitions, electron–phonon interaction, and electron mobility. It presents numerical calculations of scattering rate, relaxation time, and mobility for typical semiconductors with bulk, quantum well and HEMT structures including wideband gap materials such as GaN and SiC in addition to IV and III-V semiconductors. The updated fourth edition includes coverage of new topics such as surface-modulated superlattices, Wannier–Stark effect, Bloch oscillation, wide band gap semiconductors, and photonic crystals. Featuring full-color diagrams calculated with updated physical parameters, as well as chapter-end problems and solutions, this tried and tested textbook on the basics of semiconductors physics is the cornerstone to any graduate or upper-level undergraduate course on the subject.

Quantum mechanics. Quantumfield theory --- Optics. Quantum optics --- Solid state physics --- Electronics --- vaste stof --- quantumfysica --- materie (fysica) --- halfgeleiders --- microwaves --- Semiconductors.