Self Assembled Semiconductor Quantum Dots For Spin Based All Optical And Electronic Quantum Computing PDF Download
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| Author | : |
| Publisher | : |
| Total Pages | : 27 |
| Release | : 2008 |
| Genre | : |
| ISBN | : |
Download Self Assembled Semiconductor Quantum Dots for Spin Based All Optical and Electronic Quantum Computing Book in PDF, ePub and Kindle
This project involved the study of self-assembled quantum dots as hosts for spin based qubits. Both semiconductor quantum dots, nanowires, and organic quantum dots were studied and the spin relaxation times were measured. The organic Alq3 appears to have very long longitudinal spin relaxation time of nearly 1 second at a temperature of 100 K, and a nearly temperature independent transverse relaxation time> 3 nsec in the range 2-300 K. This relaxation time is sufficient to fulfill the Knill criterion for fault-tolerant quantum computing at room temperature. Since organics have special selection rules for radiative transitions whereby triplet electron-hole pairs are dark excitons and only singlets are radiative, there is a natural qubit read out scheme for organic quantum dots. We have also studied inorganic semiconductor quantum dots, but find them inferior to their organic counterparts for spin based quantum computing, primarily because spin-orbit interactions are much stronger in inorganic quantum dots, leading to much faster spin dephasing.
| Author | : Zhiming M Wang |
| Publisher | : Springer Science & Business Media |
| Total Pages | : 470 |
| Release | : 2007-11-29 |
| Genre | : Technology & Engineering |
| ISBN | : 0387741917 |
Download Self-Assembled Quantum Dots Book in PDF, ePub and Kindle
This multidisciplinary book provides up-to-date coverage of carrier and spin dynamics and energy transfer and structural interaction among nanostructures. Coverage also includes current device applications such as quantum dot lasers and detectors, as well as future applications to quantum information processing. The book will serve as a reference for anyone working with or planning to work with quantum dots.
| Author | : Robson Ferreira |
| Publisher | : Morgan & Claypool Publishers |
| Total Pages | : 148 |
| Release | : 2016-02-23 |
| Genre | : Technology & Engineering |
| ISBN | : 1681741539 |
Download Capture and Relaxation in Self-Assembled Semiconductor Quantum Dots Book in PDF, ePub and Kindle
This is an overview of different models and mechanisms developed to describe the capture and relaxation of carriers in quantum-dot systems. Despite their undisputed importance, the mechanisms leading to population and energy exchanges between a quantum dot and its environment are not yet fully understood. The authors develop a first-order approach to such effects, using elementary quantum mechanics and an introduction to the physics of semiconductors. The book results from a series of lectures given by the authors at the Master’s level.
| Author | : Peter Michler |
| Publisher | : Springer |
| Total Pages | : 457 |
| Release | : 2017-06-01 |
| Genre | : Science |
| ISBN | : 3319563785 |
Download Quantum Dots for Quantum Information Technologies Book in PDF, ePub and Kindle
This book highlights the most recent developments in quantum dot spin physics and the generation of deterministic superior non-classical light states with quantum dots. In particular, it addresses single quantum dot spin manipulation, spin-photon entanglement and the generation of single-photon and entangled photon pair states with nearly ideal properties. The role of semiconductor microcavities, nanophotonic interfaces as well as quantum photonic integrated circuits is emphasized. The latest theoretical and experimental studies of phonon-dressed light matter interaction, single-dot lasing and resonance fluorescence in QD cavity systems are also provided. The book is written by the leading experts in the field.
| Author | : Mohamed Henini |
| Publisher | : Elsevier |
| Total Pages | : 862 |
| Release | : 2011-07-28 |
| Genre | : Technology & Engineering |
| ISBN | : 0080560474 |
Download Handbook of Self Assembled Semiconductor Nanostructures for Novel Devices in Photonics and Electronics Book in PDF, ePub and Kindle
The self-assembled nanostructured materials described in this book offer a number of advantages over conventional material technologies in a wide range of sectors. World leaders in the field of self-organisation of nanostructures review the current status of research and development in the field, and give an account of the formation, properties, and self-organisation of semiconductor nanostructures. Chapters on structural, electronic and optical properties, and devices based on self-organised nanostructures are also included. Future research work on self-assembled nanostructures will connect diverse areas of material science, physics, chemistry, electronics and optoelectronics. This book will provide an excellent starting point for workers entering the field and a useful reference to the nanostructured materials research community. It will be useful to any scientist who is involved in nanotechnology and those wishing to gain a view of what is possible with modern fabrication technology. Mohamed Henini is a Professor of Applied Physics at the University of Nottingham. He has authored and co-authored over 750 papers in international journals and conference proceedings and is the founder of two international conferences. He is the Editor-in-Chief of Microelectronics Journal and has edited three previous Elsevier books. Contributors are world leaders in the field Brings together all the factors which are essential in self-organisation of quantum nanostructures Reviews the current status of research and development in self-organised nanostructured materials Provides a ready source of information on a wide range of topics Useful to any scientist who is involved in nanotechnology Excellent starting point for workers entering the field Serves as an excellent reference manual
| Author | : Tom Pearsall |
| Publisher | : Springer Science & Business Media |
| Total Pages | : 270 |
| Release | : 2013-11-27 |
| Genre | : Technology & Engineering |
| ISBN | : 1461544513 |
Download Quantum Semiconductor Devices and Technologies Book in PDF, ePub and Kindle
stacked QD structure and is useful for examining the possibility of all optical measurement of stacked QD layers. Optical absorption spectra of self-assembled QDs has been little reported, and further investigation in necessary to study hole-burning memory. 2.5 Summary This chapter describes recent advances in quantum dot fabrication tech nologies, focusing on our self-formed quantum dot technologies including TSR quantum dots and SK-mode self-assembled quantum dots. As is described in this chapter, there are many possible device applications such as quantum dot tunneling memory devices, quantum dot fioating-dot gate FETs, quantum dot lasers, and quantum dot hole-burning memory devices. The quantum dot laser applications seem to be the most practicable among these applications. However, many problems remain to be solved before even this application becomes practical. The most important issue is to of self-assembled quantum dots more pre control the size and position cisely, with an accuracy on an atomic scale. The confinement must be enough to keep the separation energy between quantized energy levels high enough to get high-temperature characteristics. The lasing oscillation frequency should be fixed at 1.3 f.lITl or 1.5 f.lITl for optical communication. Phonon bottleneck problems should be solved by the optimization of device structures. Fortunately, there is much activity in the area of quantum dot lasers and, therefore, many breakthroughs will be made, along with the exploration of other new application areas.
| Author | : Oliver Benson |
| Publisher | : Pan Stanford Publishing |
| Total Pages | : 515 |
| Release | : 2009 |
| Genre | : Science |
| ISBN | : 9814241059 |
Download Semiconductor Quantum Bits Book in PDF, ePub and Kindle
This book highlights state-of-the-art qubit implementations in semiconductors and provides an extensive overview of this newly emerging field. Semiconductor nanostructures have huge potential as future quantum information devices as they provide various ways of qubit implementation (electron spin, electronic excitation) as well as a way to transfer quantum information from stationary qubits to flying qubits (photons). Therefore, this book unites contributions from leading experts in the field, reporting cutting-edge results on spin qubit preparation, read-out and transfer. The latest theoretical as well as experimental studies of decoherence in these quantum information systems are also provided. Novel demonstrations of complex flying qubit states and first applications of semiconductor-based quantum information devices are given, too.
| Author | : Oliver Gywat |
| Publisher | : John Wiley & Sons |
| Total Pages | : 220 |
| Release | : 2010-02-01 |
| Genre | : Technology & Engineering |
| ISBN | : 3527408061 |
Download Spins in Optically Active Quantum Dots Book in PDF, ePub and Kindle
Filling a gap in the literature, this up-to-date introduction to the field provides an overview of current experimental techniques, basic theoretical concepts, and sample fabrication methods. Following an introduction, this monograph deals with optically active quantum dots and their integration into electro-optical devices, before looking at the theory of quantum confined states and quantum dots interacting with the radiation field. Final chapters cover spin-spin interaction in quantum dots as well as spin and charge states, showing how to use single spins for break-through quantum computation. A conclusion and outlook round off the volume. The result is a primer providing the essential basic knowledge necessary for young researchers entering the field, as well as semiconductor and theoretical physicists, PhD students in physics and material sciences, electrical engineers and materials scientists.
| Author | : Aleksandr Georgievich Tartakovskiĭ |
| Publisher | : |
| Total Pages | : 358 |
| Release | : 2012 |
| Genre | : Quantum dots |
| ISBN | : 9781139531825 |
Download Quantum Dots Book in PDF, ePub and Kindle
"A comprehensive review of cutting-edge solid state research, focusing on its prominent example - quantum dot nanostructures, this book features a broad range of techniques for fabrication of these nano-structured semiconductors and control of their quantum properties. Written by leading researchers, the book considers advanced III-V and II-VI semiconductor quantum dots (QDs) realized by self-assembly, lithography and chemical synthesis; novel QD structures in nanowires and graphene; and transport and optical methods for control of single QDs"--
| Author | : |
| Publisher | : Academic Press |
| Total Pages | : 385 |
| Release | : 1999-03-29 |
| Genre | : Technology & Engineering |
| ISBN | : 0080864589 |
Download Self-Assembled InGaAs/GaAs Quantum Dots Book in PDF, ePub and Kindle
This volume is concerned with the crystal growth, optical properties, and optical device application of the self-formed quantum dot, which is one of the major current subjects in the semiconductor research field.The atom-like density of states in quantum dots is expected to drastically improve semiconductor laser performance, and to develop new optical devices. However, since the first theoretical prediction for its great possibilities was presented in 1982, due to the difficulty of their fabrication process. Recently, the advent of self-organized quantum dots has made it possible to apply the results in important optical devices, and further progress is expected in the near future.The authors, working for Fujitsu Laboratories, are leading this quantum-dot research field. In this volume, they describe the state of the art in the entire field, with particular emphasis on practical applications.
