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Quantum Computing Hardware Based On Rare Earth Ion Doped Whispering Gallery Mode Resonators
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Book Synopsis Quantum Computing Hardware Based on Rare-earth-ion Doped Whispering-gallery Mode Resonators by : David Lee McAuslan
Download or read book Quantum Computing Hardware Based on Rare-earth-ion Doped Whispering-gallery Mode Resonators written by David Lee McAuslan and published by . This book was released on 2011 with total page 182 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis A First Step Towards Quantum Computing in Rare-earth-ion-doped Crystals by : Tomas Christiansson
Download or read book A First Step Towards Quantum Computing in Rare-earth-ion-doped Crystals written by Tomas Christiansson and published by . This book was released on 2001 with total page 54 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Investigation of the Scalability of Rare-earth-ion Quantum Hardware by : John Glen Bartholomew
Download or read book Investigation of the Scalability of Rare-earth-ion Quantum Hardware written by John Glen Bartholomew and published by . This book was released on 2014 with total page 878 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the last decade, the solid-state rare-earth-ion system has demonstrated increasing appeal for quantum computation. Despite this progress, two hardware limitations prevent a scalable implementation. These current limitations are the inability to miniaturise and the inability to perform single-ion qubit readout. This thesis addresses both these limitations and demonstrates that neither poses a fundamental restriction on increasing the scale of rare-earth-ion quantum computers. The challenge in miniaturising rare-earth-ion quantum hardware arises from the increases in homogeneous and inhomogeneous broadening that accompany micron-scale architectures. The success of miniaturised architectures, such as waveguides, depends on the properties of bulk ions being preserved within microns of the crystal surface. In addition, bulk ion properties must also be preserved in regions of high residual stress resultant from waveguide fabrication. The inhomogeneous and homogeneous properties of near-surface ions and ions in highly stressed environments in Pr3+:Y2SiO5 were studied via white light interferometry combined with micron resolution fluorescence microscopy. It was found that the bulk ion properties could be preserved both near the surface and in highly stressed regions close to micron-scale surface damage. The observation of excess inhomogeneous and homogeneous broadening was found to be consistent with the damage present at the crystal surface. The main outcome of the study was a set of waveguide fabrication guidelines to ensure that the appealing properties of bulk crystals can be maintained in a miniaturised architecture. The current inability to perform single-ion qubit readout is a consequence of the difficulty in isolating a single ion and lack of cyclicity in rare-earth-ion materials. Two techniques are proposed to form a solution: Stark activation and Zeeman enhanced cyclicity. When combined, these techniques offer direct readout for single-ion frequency-based quantum computing. Stark activation is designed to isolate a single rare-earth ion in a macroscopic crystal. The proposal is based on defining the condition for resonant excitation through a spatially varying electric field. A proof-of-principle experiment successfully created a 10 um absorption region within a millimetre thick crystal. In addition, the signal-to-noise ratio of the technique was characterised in experiments probing Pr3+:Y2SiO5 at the single-ion level. Future improvements to the apparatus should allow the nanometre spatial resolution and the noise level to be reduced to allow single-ion optical detection. High cyclicity is essential for high-fidelity optical readout of a single-ion qubit. Zeeman enhanced cyclicity achieves this by manipulating the hyperfine structure of the resonant crystal field levels to induce strong hyperfine selection rules. The technique is shown to be applicable to even the lowest symmetry sites. The simulated level of cyclicity in Pr3+:Y2SiO5 was greater than 99.99% by applying a 10 T field. The investigation of scalability in the rare-earth-ion system marks a movement away from the traditional ensemble-based methods in macroscopic crystals. This study required an understanding of these materials at a single-ion level and the development of high spatial resolution spectroscopic techniques. These advances extend the ability to engineer rare-earth-ion systems for applications including, but not limited to, quantum computing.
Book Synopsis Theoretical Investigation of Robust Quantum Computing in Rare-earth-ion Doped Crystals by : Ingela Roos
Download or read book Theoretical Investigation of Robust Quantum Computing in Rare-earth-ion Doped Crystals written by Ingela Roos and published by . This book was released on 2003 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Whispering Gallery Mode Microresonators by : Faraz Monifi
Download or read book Whispering Gallery Mode Microresonators written by Faraz Monifi and published by . This book was released on 2014 with total page 135 pages. Available in PDF, EPUB and Kindle. Book excerpt: High quality factor, small footprint and ease of fabrication of whispering gallery mode micro-resonators make them ideal platforms for applied and fundamental studies ranging from cavity QED to sensing and photonic circuits. In this thesis, whispering gallery mode (WGM) microcavities are explored as building blocks of photonic circuits and as sensitive ultrasound transducers. We have carried out a detailed theoretical and experimental analysis to use Whispering Gallery Mode Resonators (WGMRs) for implementing add-drop filters (ADF) that are essential elements of optical communication networks. ADFs are required to multiplex dierent communication channels over a single ber and route optical signals of dierent wavelengths to dierent users. We showed explicit relation between dierent loss mechanisms in the ber-taper coupledWGMRs and the various gures of merit of ADFs, such as drop eciency, bandwidth and crosstalk. Using a passive silica micro toroidal WGMR, we built an ADF with thermal tuning capabilities and with enhanced robustness to mechanical instabilities commonly seen in ber-taper coupledWGMRs. The key to this was to introduce micro-scale walls adjacent to the WGMRs to place ber-taper couplers for improved stability without sacricing the coupling eciencies. In a second work along this direction, we built ADFs using ber-coupled rare-earth-ion (Erbium and Ytterbium) doped silica microspheres in which gain provided by the ions used to compensate a portion of the losses. As a result, we improved drop eciency by 4-fold and decreased crosstalk by 10-fold over an ADF without gain medium. We showed that by tuning the gain, we can nely control the characteristics of the ADF. Enhanced light intensity in WGMRs lead to photon radiation pressure induced mechanical oscillations, known as opto-mechanics. In strongly driven opto-mechanical systems, optical signal experiences chaos which is in general not desirable in communication systems. However, today it is well-known that chaotic signal can be used for secure communication provided that the receiver and the transmitter are synchronized apriori. In opto-mechanical system, chaotic signal can be generated if the system is driven by a high intensity light eld. For very weak elds, neither periodic oscillations nor chaotic ones are possible. For secure communication, it may be interesting to route a weak optical signal to chaos by the help of a strong eld residing in the same opto-mechanical system. Therefore, we investigated chaos generation and synchronization in an opto-mechanical system based on WGMRs. We demonstrated that a weak probe signal follows a similar route to chaos as a strong pump signal which induces chaos, clearly demonstrating chaos synchronization. We also investigated the capability of WGMRs for ultrasound sensing and demonstrated that very high sensitivity and low detection limit can be achieved using a micro-toroid resonator encapsulated in allow refractive index polymer. We also show that one can lower the detection limit and increase the sensitivity by designing the micro-toroid such that it has an intrinsic mechanical resonance near the frequency of the incoming ultrasound signal. Using optical resonators for ultra sound sending promises an all-optical photo-acoustic imaging system.
Book Synopsis Quantum Information Processing in Rare Earth Ion Doped Insulators by : Jevon Joseph Longdell
Download or read book Quantum Information Processing in Rare Earth Ion Doped Insulators written by Jevon Joseph Longdell and published by . This book was released on 2003 with total page 184 pages. Available in PDF, EPUB and Kindle. Book excerpt: "A great deal of theoretical activity has resulted from blending the fields of computer science and quantum mechanics. Out of this work has come the concept of a quantum computer, which promises to solve problems currently intractable for classical computers. This promise has, in turn, generated a large amount of effort directed toward investigating quantum computing experimentally. Quantum computing is difficult because fragile quantum superposition states of the computer's register must be protected from the environment. This is made more difficult by the need to manipulate and measure these states.
Book Synopsis Hybrid Quantum Systems by : Yoshiro Hirayama
Download or read book Hybrid Quantum Systems written by Yoshiro Hirayama and published by Springer Nature. This book was released on 2022-01-06 with total page 352 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Book Synopsis Quantum Photonics: Pioneering Advances and Emerging Applications by : Robert W. Boyd
Download or read book Quantum Photonics: Pioneering Advances and Emerging Applications written by Robert W. Boyd and published by Springer. This book was released on 2019-02-27 with total page 627 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book brings together reviews by internationally renowed experts on quantum optics and photonics. It describes novel experiments at the limit of single photons, and presents advances in this emerging research area. It also includes reprints and historical descriptions of some of the first pioneering experiments at a single-photon level and nonlinear optics, performed before the inception of lasers and modern light detectors, often with the human eye serving as a single-photon detector. The book comprises 19 chapters, 10 of which describe modern quantum photonics results, including single-photon sources, direct measurement of the photon's spatial wave function, nonlinear interactions and non-classical light, nanophotonics for room-temperature single-photon sources, time-multiplexed methods for optical quantum information processing, the role of photon statistics in visual perception, light-by-light coherent control using metamaterials, nonlinear nanoplasmonics, nonlinear polarization optics, and ultrafast nonlinear optics in the mid-infrared.
Book Synopsis Practical Applications of Microresonators in Optics and Photonics by : Andrey B. Matsko
Download or read book Practical Applications of Microresonators in Optics and Photonics written by Andrey B. Matsko and published by CRC Press. This book was released on 2018-09-03 with total page 586 pages. Available in PDF, EPUB and Kindle. Book excerpt: Assembling an international team of experts, this book reports on the progress in the rapidly growing field of monolithic micro- and nanoresonators. The book opens with a chapter on photonic crystal-based resonators (nanocavities). It goes on to describe resonators in which the closed trajectories of light are supported by any variety of total internal reflection in curved and polygonal transparent dielectric structures. The book also covers distributed feedback microresonators for slow light, controllable dispersion, and enhanced nonlinearity. A portion of coverage is dedicated to the unique properties of resonators, which are extremely efficient tools when conducting multiple applications.
Book Synopsis The Physics and Technology of Laser Resonators by : Dennis Hall
Download or read book The Physics and Technology of Laser Resonators written by Dennis Hall and published by CRC Press. This book was released on 1990-01-01 with total page 278 pages. Available in PDF, EPUB and Kindle. Book excerpt: Comprehensive yet concise, The Physics and Technology of Laser Resonators presents both the fundamentals and latest developments in laser resonator technology, including specific case studies. The book covers various types of resonators, including unstable, ring laser, and multifold laser. It also discusses numerical resonator calculations and laser beam analysis. This reference will be of value and interest both to newcomers to the field and to professional engineers wishing to update their knowledge.
Book Synopsis Lab-on-Fiber Technology by : Andrea Cusano
Download or read book Lab-on-Fiber Technology written by Andrea Cusano and published by Springer. This book was released on 2014-07-29 with total page 377 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book focuses on a research field that is rapidly emerging as one of the most promising ones for the global optics and photonics community: the “lab-on-fiber” technology. Inspired by the well-established "lab on-a-chip" concept, this new technology essentially envisages novel and highly functionalized devices completely integrated into a single optical fiber for both communication and sensing applications. Based on the R&D experience of some of the world's leading authorities in the fields of optics, photonics, nanotechnology, and material science, this book provides a broad and accurate description of the main developments and achievements in the lab-on-fiber technology roadmap, also highlighting the new perspectives and challenges to be faced. This book is essential for scientists interested in the cutting-edge fiber optic technology, but also for graduate students.
Book Synopsis Frequency Standards by : Fritz Riehle
Download or read book Frequency Standards written by Fritz Riehle and published by John Wiley & Sons. This book was released on 2006-03-06 with total page 540 pages. Available in PDF, EPUB and Kindle. Book excerpt: Of all measurement units, frequency is the one that may be determined with the highest degree of accuracy. It equally allows precise measurements of other physical and technical quantities, whenever they can be measured in terms of frequency. This volume covers the central methods and techniques relevant for frequency standards developed in physics, electronics, quantum electronics, and statistics. After a review of the basic principles, the book looks at the realisation of commonly used components. It then continues with the description and characterisation of important frequency standards from atomic clocks, to frequency stabilised lasers. The whole is rounded of with a discussion of topical applications in engineering, telecommunications, and metrology.
Author :Qihuang Gong Publisher :SPIE-International Society for Optical Engineering ISBN 13 :9780819483768 Total Pages :316 pages Book Rating :4.4/5 (837 download)
Book Synopsis Quantum and Nonlinear Optics by : Qihuang Gong
Download or read book Quantum and Nonlinear Optics written by Qihuang Gong and published by SPIE-International Society for Optical Engineering. This book was released on 2010 with total page 316 pages. Available in PDF, EPUB and Kindle. Book excerpt: Includes Proceedings Vol. 7821
Book Synopsis Rare Earth and Transition Metal Doping of Semiconductor Materials by : Volkmar Dierolf
Download or read book Rare Earth and Transition Metal Doping of Semiconductor Materials written by Volkmar Dierolf and published by Woodhead Publishing. This book was released on 2016-01-23 with total page 472 pages. Available in PDF, EPUB and Kindle. Book excerpt: Rare Earth and Transition Metal Doping of Semiconductor Material explores traditional semiconductor devices that are based on control of the electron's electric charge. This book looks at the semiconductor materials used for spintronics applications, in particular focusing on wide band-gap semiconductors doped with transition metals and rare earths. These materials are of particular commercial interest because their spin can be controlled at room temperature, a clear opposition to the most previous research on Gallium Arsenide, which allowed for control of spins at supercold temperatures. Part One of the book explains the theory of magnetism in semiconductors, while Part Two covers the growth of semiconductors for spintronics. Finally, Part Three looks at the characterization and properties of semiconductors for spintronics, with Part Four exploring the devices and the future direction of spintronics. - Examines materials which are of commercial interest for producing smaller, faster, and more power-efficient computers and other devices - Analyzes the theory behind magnetism in semiconductors and the growth of semiconductors for spintronics - Details the properties of semiconductors for spintronics
Book Synopsis Polarization of Light by : Maria Chekhova
Download or read book Polarization of Light written by Maria Chekhova and published by Walter de Gruyter GmbH & Co KG. This book was released on 2021-03-22 with total page 267 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book starts with the description of polarization in classical optics, including also a chapter on crystal optics, which is necessary to understand the use of nonlinear crystals. In addition, spatially non-uniform polarization states are introduced and described. Further, the role of polarization in nonlinear optics is discussed. The final chapters are devoted to the description and applications of polarization in quantum optics and quantum technologies.
Book Synopsis Perovskite and Piezoelectric Materials by : Someshwar Pola
Download or read book Perovskite and Piezoelectric Materials written by Someshwar Pola and published by BoD – Books on Demand. This book was released on 2021-01-27 with total page 230 pages. Available in PDF, EPUB and Kindle. Book excerpt: Investigating in the area of perovskite materials and the fabrication of devices for properties in optoelectronics, we have presented a brief outline of perovskite materials. The authors present a fairly comprehensive arrangement of this very active area of research, with its past changes and present position and outlooks. Discussions are presented regarding photocatalysis, fabrication of solar cell devices and their stability, lead-free materials, as well as thermoelectric and piezoelectric applications. In view of the present status of perovskite materials, I am assured that each chapter of the book will be of boundless encouragement for researchers, scientists, and academicians working in this field.
Book Synopsis Applied Nanophotonics by : Sergey V. Gaponenko
Download or read book Applied Nanophotonics written by Sergey V. Gaponenko and published by Cambridge University Press. This book was released on 2019 with total page 453 pages. Available in PDF, EPUB and Kindle. Book excerpt: An accessible yet rigorous introduction to nanophotonics, covering basic principles, technology, and applications in lighting, lasers, and photovoltaics. Providing a wealth of information on materials and devices, and over 150 color figures, it is the 'go-to' guide for students in electrical engineering taking courses in nanophotonics.
