Towards a Spin-Ensemble Quantum Memory for Superconducting Qubits

Towards a Spin-Ensemble Quantum Memory for Superconducting Qubits

Author: Cécile Grèzes

Publisher: Springer

Published: 2015-08-19

Total Pages: 240

ISBN-13: 3319215728

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This work describes theoretical and experimental advances towards the realization of a hybrid quantum processor in which the collective degrees of freedom of an ensemble of spins in a crystal are used as a multi-qubit register for superconducting qubits. A memory protocol made of write, read and reset operations is first presented, followed by the demonstration of building blocks of its implementation with NV center spins in diamond. Qubit states are written by resonant absorption of a microwave photon in the spin ensemble and read out of the memory on-demand by applying Hahn echo refocusing techniques to the spins. The reset step is implemented in between two successive write-read sequences using optical repumping of the spins.


Hybrid Quantum Systems

Hybrid Quantum Systems

Author: Yoshiro Hirayama

Publisher: Springer Nature

Published: 2022-01-06

Total Pages: 352

ISBN-13: 9811666792

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This book presents state-of-the-art research on quantum hybridization, manipulation, and measurement in the context of hybrid quantum systems. It covers a broad range of experimental and theoretical topics relevant to quantum hybridization, manipulation, and measurement technologies, including a magnetic field sensor based on spin qubits in diamond NV centers, coherently coupled superconductor qubits, novel coherent couplings between electron and nuclear spin, photons and phonons, and coherent coupling of atoms and photons. Each topic is concisely described by an expert at the forefront of the field, helping readers quickly catch up on the latest advances in fundamental sciences and technologies of hybrid quantum systems, while also providing an essential overview.


Luminescent Nanomaterials

Luminescent Nanomaterials

Author: Odireleng Martin Ntwaeaborwa

Publisher: CRC Press

Published: 2022-05-19

Total Pages: 508

ISBN-13: 1000565408

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In recent decades, luminescent nanomaterials have generated great interest in the scientific community due to their unique properties, which are different from those of their bulk counterparts, and their use in a wide variety of applications. Today, luminescent nanomaterials are used in a number of applications such as displays, solid-state lighting, solar cells, long afterglow, dosimetry, theft prevention, medical imaging, phototherapy, and quantum and gas sensing. This book presents cutting-edge research from experts in the field of synthesis and characterization of luminescent nanomaterials and their potential applications. It covers interesting topics in semiconductor physics, photochemistry, physical chemistry, materials science, and luminescence, and will be useful for beginners and advanced researchers interested in this field.


Circuit Cavity QED with Macroscopic Solid-State Spin Ensembles

Circuit Cavity QED with Macroscopic Solid-State Spin Ensembles

Author: Stefan Putz

Publisher: Springer

Published: 2017-10-05

Total Pages: 136

ISBN-13: 3319664476

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This thesis combines quantum electrical engineering with electron spin resonance, with an emphasis on unraveling emerging collective spin phenomena. The presented experiments, with first demonstrations of the cavity protection effect, spectral hole burning and bistability in microwave photonics, cover new ground in the field of hybrid quantum systems. The thesis starts at a basic level, explaining the nature of collective effects in great detail. It develops the concept of Dicke states spin-by-spin, and introduces it to circuit quantum electrodynamics (QED), applying it to a strongly coupled hybrid quantum system studied in a broad regime of several different scenarios. It also provides experimental demonstrations including strong coupling, Rabi oscillations, nonlinear dynamics, the cavity protection effect, spectral hole burning, amplitude bistability and spin echo spectroscopy.


Principles and Methods of Quantum Information Technologies

Principles and Methods of Quantum Information Technologies

Author: Yoshihisa Yamamoto

Publisher: Springer

Published: 2015-12-30

Total Pages: 615

ISBN-13: 4431557563

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This book presents the research and development-related results of the “FIRST” Quantum Information Processing Project, which was conducted from 2010 to 2014 with the support of the Council for Science, Technology and Innovation of the Cabinet Office of the Government of Japan. The project supported 33 research groups and explored five areas: quantum communication, quantum metrology and sensing, coherent computing, quantum simulation, and quantum computing. The book is divided into seven main sections. Parts I through V, which consist of twenty chapters, focus on the system and architectural aspects of quantum information technologies, while Parts VI and VII, which consist of eight chapters, discuss the superconducting quantum circuit, semiconductor spin and molecular spin technologies. Readers will be introduced to new quantum computing schemes such as quantum annealing machines and coherent Ising machines, which have now arisen as alternatives to standard quantum computers and are designed to successfully address NP-hard/NP-complete combinatorial optimization problems, which are ubiquitous and relevant in our modern life. The book offers a balanced mix of theory-based and experimentation-based chapters written by leading researchers. Extensive information is provided on Quantum simulation, which focuses on the implementation of various many-body Hamiltonians in a well-controlled physical system, Quantum key distribution, Quantum repeaters and quantum teleportation, which are indispensable technologies for building quantum networks with various advanced applications and require far more sophisticated experimental techniques to implement.


Quantum Information Processing with Diamond

Quantum Information Processing with Diamond

Author: Steven Prawer

Publisher: Elsevier

Published: 2014-05-12

Total Pages: 367

ISBN-13: 0857096680

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Diamond nitrogen vacancy (NV) color centers can transform quantum information science into practical quantum information technology, including fast, safe computing. Quantum Information Processing with Diamond looks at the principles of quantum information science, diamond materials, and their applications. Part one provides an introduction to quantum information processing using diamond, as well as its principles and fabrication techniques. Part two outlines experimental demonstrations of quantum information processing using diamond, and the emerging applications of diamond for quantum information science. It contains chapters on quantum key distribution, quantum microscopy, the hybridization of quantum systems, and building quantum optical devices. Part three outlines promising directions and future trends in diamond technologies for quantum information processing and sensing. Quantum Information Processing with Diamond is a key reference for R&D managers in industrial sectors such as conventional electronics, communication engineering, computer science, biotechnology, quantum optics, quantum mechanics, quantum computing, quantum cryptology, and nanotechnology, as well as academics in physics, chemistry, biology, and engineering. - Brings together the topics of diamond and quantum information processing - Looks at applications such as quantum computing, neural circuits, and in vivo monitoring of processes at the molecular scale


Molecular Nanomagnets and Related Phenomena

Molecular Nanomagnets and Related Phenomena

Author: Song Gao

Publisher: Springer

Published: 2015-02-20

Total Pages: 468

ISBN-13: 3662457237

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The series Structure and Bonding publishes critical reviews on topics of research concerned with chemical structure and bonding. The scope of the series spans the entire Periodic Table and addresses structure and bonding issues associated with all of the elements. It also focuses attention on new and developing areas of modern structural and theoretical chemistry such as nanostructures, molecular electronics, designed molecular solids, surfaces, metal clusters and supramolecular structures. Physical and spectroscopic techniques used to determine, examine and model structures fall within the purview of Structure and Bonding to the extent that the focus is on the scientific results obtained and not on specialist information concerning the techniques themselves. Issues associated with the development of bonding models and generalizations that illuminate the reactivity pathways and rates of chemical processes are also relevant. The individual volumes in the series are thematic. The goal of each volume is to give the reader, whether at a university or in industry, a comprehensive overview of an area where new insights are emerging that are of interest to a larger scientific audience. Thus each review within the volume critically surveys one aspect of that topic and places it within the context of the volume as a whole. The most significant developments of the last 5 to 10 years should be presented using selected examples to illustrate the principles discussed. A description of the physical basis of the experimental techniques that have been used to provide the primary data may also be appropriate, if it has not been covered in detail elsewhere. The coverage need not be exhaustive in data, but should rather be conceptual, concentrating on the new principles being developed that will allow the reader, who is not a specialist in the area covered, to understand the data presented. Discussion of possible future research directions in the area is welcomed. Review articles for the individual volumes are invited by the volume editors. Readership: research scientists at universities or in industry, graduate students Special offer for all customers who have a standing order to the print version of Structure and Bonding, we offer free access to the electronic volumes of the Series published in the current year via SpringerLink.


Issues in General Physics Research: 2011 Edition

Issues in General Physics Research: 2011 Edition

Author:

Publisher: ScholarlyEditions

Published: 2012-01-09

Total Pages: 13957

ISBN-13: 1464963320

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Issues in General Physics Research / 2011 Edition is a ScholarlyEditions™ eBook that delivers timely, authoritative, and comprehensive information about General Physics Research. The editors have built Issues in General Physics Research: 2011 Edition on the vast information databases of ScholarlyNews.™ You can expect the information about General Physics Research in this eBook to be deeper than what you can access anywhere else, as well as consistently reliable, authoritative, informed, and relevant. The content of Issues in General Physics Research: 2011 Edition has been produced by the world’s leading scientists, engineers, analysts, research institutions, and companies. All of the content is from peer-reviewed sources, and all of it is written, assembled, and edited by the editors at ScholarlyEditions™ and available exclusively from us. You now have a source you can cite with authority, confidence, and credibility. More information is available at http://www.ScholarlyEditions.com/.


Hybrid quantum system based on rare earth doped crystals

Hybrid quantum system based on rare earth doped crystals

Author: Probst, Sebastian

Publisher: KIT Scientific Publishing

Published: 2016-09-05

Total Pages: 156

ISBN-13: 373150345X

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Hybrid quantum circuits interfacing rare earth spin ensembles with microwave resonators are a promising approach for application as coherent quantum memory and frequency converter. In this thesis, hybrid circuits based on Er and Nd ions doped into Y?SiO? and YAlO? crystals are investigated by optical and on-chip microwave spectroscopy. Coherent strong coupling between the microwave resonator and spin ensemble as well as a multimode memory for weak coherent microwave pulses are demonstrated.


Carbon Superstructures

Carbon Superstructures

Author: Somnath Bhattacharyya

Publisher: CRC Press

Published: 2024-05-24

Total Pages: 327

ISBN-13: 1040013139

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This book covers how the understanding, as well as controllability, of the quantum electronic properties of carbon structures can be improved through a combined study of structural geometry, electronic properties, and dynamics of resonating valence bonds. It elaborates varied properties such as growth mechanism, exotic transport properties, namely unusual geometry of microstructures mixed with electron distribution and spin properties in carbon. Transport mechanisms and new applications including hybrid quantum technology based on the superconducting diamond and diamond nitrogen-vacancy (NV) centers are discussed. Features: • Includes the theoretical and experimental aspects of carbon physics, various carbon nanostructures, and simulations. • Covers growth of carbon superstructures and various applications of their tunable electronic properties. • Discusses how nanocarbon systems can be used in emerging technologies, including spintronic and quantum computing. • Focuses on spin-related features and spin transport including the Kondo effect, spin-charge separation, spin-phonon coupling, anomalous Hall effect, and Luttinger liquid features. • Explores carbon superstructure growth and their tunable electronic properties. This book is aimed at students, researchers in physics, chemistry, engineering, materials science, electronics, and quantum technology.