Computer Science and Quantum Computing

Author: Jeremy E. Stones

Publisher: Nova Publishers

ISBN: 9781600212345

Category: Computers

Page: 233

View: 7790

This book presents leading-edge research in the field of computer science research including quantum computing, technology and applications. Each contribution has been carefully selected for inclusion based on the significance of the research to the field. Summaries of all chapters are gathered at the beginning of the book and an in-depth index is presented to facilitate access.
Posted in Computers

Quantum Computing for Computer Scientists

Author: Noson S. Yanofsky,Mirco A. Mannucci

Publisher: Cambridge University Press

ISBN: 0521879965

Category: Computers

Page: 384

View: 2257

Finally, a textbook that explains quantum computing using techniques and concepts familiar to computer scientists.
Posted in Computers

Quantum Computer Science

Author: Marco Lanzagorta,Jeffrey K. Uhlmann

Publisher: Morgan & Claypool Publishers

ISBN: 1598297325

Category: Computers

Page: 108

View: 2537

In this text we present a technical overview of the emerging field of quantum computation along with new research results by the authors. What distinguishes our presentation from that of others is our focus on the relationship between quantum computation and computer science. Specifically, our emphasis is on the computational model of quantum computing rather than on the engineering issues associated with its physical implementation. We adopt this approach for the same reason that a book on computer programming doesn't cover the theory and physical realization of semiconductors. Another distinguishing feature of this text is our detailed discussion of the circuit complexity of quantum algorithms. To the extent possible we have presented the material in a form that is accessible to the computer scientist, but in many cases we retain the conventional physics notation so that the reader will also be able to consult the relevant quantum computing literature. Although we expect the reader to have a solid understanding of linear algebra, we do not assume a background in physics. This text is based on lectures given as short courses and invited presentations around the world, and it has been used as the primary text for a graduate course at George Mason University. In all these cases our challenge has been the same: how to present to a general audience a concise introduction to the algorithmic structure and applications of quantum computing on an extremely short period of time. The feedback from these courses and presentations has greatly aided in making our exposition of challenging concepts more accessible to a general audience. Table of Contents: Introduction / The Algorithmic Structure of Quantum Computing / Advantages and Limitations of Quantum Computing / Amplitude Amplification / Case Study: Computational Geometry / The Quantum Fourier Transform / Case Study: The Hidden Subgroup / Circuit Complexity Analysis of Quantum Algorithms / Conclusions / Bibliography
Posted in Computers

Quantum Computer Science

An Introduction

Author: N. David Mermin

Publisher: Cambridge University Press

ISBN: 9781139466806

Category: Science

Page: N.A

View: 2901

In the 1990's it was realized that quantum physics has some spectacular applications in computer science. This book is a concise introduction to quantum computation, developing the basic elements of this new branch of computational theory without assuming any background in physics. It begins with an introduction to the quantum theory from a computer-science perspective. It illustrates the quantum-computational approach with several elementary examples of quantum speed-up, before moving to the major applications: Shor's factoring algorithm, Grover's search algorithm, and quantum error correction. The book is intended primarily for computer scientists who know nothing about quantum theory, but will also be of interest to physicists who want to learn the theory of quantum computation, and philosophers of science interested in quantum foundational issues. It evolved during six years of teaching the subject to undergraduates and graduate students in computer science, mathematics, engineering, and physics, at Cornell University.
Posted in Science

Quantum Computation

An Introduction for Engineers and Computer Scientists

Author: Andreas de Vries

Publisher: BoD – Books on Demand

ISBN: 3844823530

Category: Fiction

Page: 220

View: 8093

Since the 1980s research on quantum computation has dramatically changed the theoretical perspectives of computer science. Quantum computers could enable unprecedented computational power and revolutionize our cryptographic systems, even our entire electronic communication. This textbook gives an introduction to the theory of quantum computation. The author has chosen an elementary and lean theoretical approach, presupposing mathematical and physical knowledge which is standard in undergraduate courses of scientific or engineering studies, in essence linear algebra and complex numbers. The necessary mathematical notions are given in the appendix. Contents - Strange quantum world, qubits und quantum gates - Quantum Fourier transformation and QFT algorithms - Quantum search, quantum communication, error correcting quantum codes - How to build and simulate a quantum computer - Density operators and measurements - Complexity theory and quantum logic Who should read this book? - Students of engineering, especially electronic engineering - Students of computer science, physics, or mathematics - Practitioners in business and economy who want to understand, apply, or evaluate this new technology
Posted in Fiction

Adventures in Computer Science

From Classical Bits to Quantum Bits

Author: Vicente Moret-Bonillo

Publisher: Springer

ISBN: 3319648071

Category: Computers

Page: 198

View: 8548

The main focus of this textbook is the basic unit of information and the way in which our understanding of this has evolved over time. In particular the author covers concepts related to information, classical computing, logic, reversible computing, quantum mechanics, quantum computing, thermodynamics and some artificial intelligence and biology, all approached from the viewpoint of computer sciences. The book begins by asking the following nontrivial question: what is a bit? The author then discusses logic, logic gates, reversible computing and reversible architectures, and the concept of disorder. He then tries to establish the relationship between three essential questions that justify quantum approaches in computer sciences: the energy required to perform a real-life computation, the size of current processors, and the reversibility of quantum operations. Based on these concepts, the author establishes the conditions that justify the use of quantum techniques for certain kinds of computational tasks, and he uses formal descriptions and formal argumentations to introduce key quantum mechanical concepts and approaches. The rest of the book is formally different, focusing on practical issues, including a discussion of remarkable quantum algorithms in a treatment based on quantum circuit theory. The book is valuable for graduate students in computer science, and students of other disciplines who are engaged with physical models of information and computing.
Posted in Computers

Explorations in Quantum Computing

Author: Colin P. Williams

Publisher: Springer Science & Business Media

ISBN: 9781846288876

Category: Computers

Page: 717

View: 1647

By the year 2020, the basic memory components of a computer will be the size of individual atoms. At such scales, the current theory of computation will become invalid. "Quantum computing" is reinventing the foundations of computer science and information theory in a way that is consistent with quantum physics - the most accurate model of reality currently known. Remarkably, this theory predicts that quantum computers can perform certain tasks breathtakingly faster than classical computers – and, better yet, can accomplish mind-boggling feats such as teleporting information, breaking supposedly "unbreakable" codes, generating true random numbers, and communicating with messages that betray the presence of eavesdropping. This widely anticipated second edition of Explorations in Quantum Computing explains these burgeoning developments in simple terms, and describes the key technological hurdles that must be overcome to make quantum computers a reality. This easy-to-read, time-tested, and comprehensive textbook provides a fresh perspective on the capabilities of quantum computers, and supplies readers with the tools necessary to make their own foray into this exciting field. Topics and features: concludes each chapter with exercises and a summary of the material covered; provides an introduction to the basic mathematical formalism of quantum computing, and the quantum effects that can be harnessed for non-classical computation; discusses the concepts of quantum gates, entangling power, quantum circuits, quantum Fourier, wavelet, and cosine transforms, and quantum universality, computability, and complexity; examines the potential applications of quantum computers in areas such as search, code-breaking, solving NP-Complete problems, quantum simulation, quantum chemistry, and mathematics; investigates the uses of quantum information, including quantum teleportation, superdense coding, quantum data compression, quantum cloning, quantum negation, and quantum cryptography; reviews the advancements made towards practical quantum computers, covering developments in quantum error correction and avoidance, and alternative models of quantum computation. This text/reference is ideal for anyone wishing to learn more about this incredible, perhaps "ultimate," computer revolution. Dr. Colin P. Williams is Program Manager for Advanced Computing Paradigms at the NASA Jet Propulsion Laboratory, California Institute of Technology, and CEO of Xtreme Energetics, Inc. an advanced solar energy company. Dr. Williams has taught quantum computing and quantum information theory as an acting Associate Professor of Computer Science at Stanford University. He has spent over a decade inspiring and leading high technology teams and building business relationships with and Silicon Valley companies. Today his interests include terrestrial and Space-based power generation, quantum computing, cognitive computing, computational material design, visualization, artificial intelligence, evolutionary computing, and remote olfaction. He was formerly a Research Scientist at Xerox PARC and a Research Assistant to Prof. Stephen W. Hawking, Cambridge University.
Posted in Computers

Introduction to Quantum Computers

Author: Gennady P Berman,Gary D Doolen,Ronnie Mainieri,Vladimir I Tsifrinovich

Publisher: World Scientific

ISBN: 9814496103

Category: Computers

Page: 196

View: 4214

Quantum computing promises to solve problems which are intractable on digital computers. Highly parallel quantum algorithms can decrease the computational time for some problems by many orders of magnitude. This important book explains how quantum computers can do these amazing things. Several algorithms are illustrated: the discrete Fourier transform, Shor's algorithm for prime factorization; algorithms for quantum logic gates; physical implementations of quantum logic gates in ion traps and in spin chains; the simplest schemes for quantum error correction; correction of errors caused by imperfect resonant pulses; correction of errors caused by the nonresonant actions of a pulse; and numerical simulations of dynamical behavior of the quantum Control-Not gate. An overview of some basic elements of computer science is presented, including the Turing machine, Boolean algebra, and logic gates. The required quantum ideas are explained. Contents:The Turing MachineBinary System and Boolean AlgebraThe Quantum ComputerThe Discrete Fourier TransformQuantum Factorization of IntegersLogic GatesImplementation of Logic Gates Using TransistorsReversible Logic GatesQuantum Logic GatesTwo and Three Qubit Quantum Logic GatesOne-Qubit RotationAj-TransformationBjk-TransformationUnitary Transformations and Quantum DynamicsQuantum Dynamics at Finite TemperaturePhysical Realization of Quantum ComputationsCONTROL-NOT Gate in an Ion TrapAj and Bjk Gates in an Ion TrapLinear Chains of Nuclear SpinsDigital Gates in a Spin ChainNon-resonant Action of π-PulsesExperimental Logic Gates in Quantum SystemsError Correction for Quantum ComputersQuantum Gates in a Two-Spin SystemQuantum Logic Gates in a Spin Ensemble at Room TemperatureEvolution of Four-Spin MoleculesGetting the Desired Density Matrix Readership: Computer scientists, and mathematicians and physicists interested in quantum computing. Keywords:Quantum Computer;Logic Gates;Transistor;Quantum Logic Gates;Quantum Mechanics;Quantum Dynamics;Spin;Shor's Algorithm;Ion Trap;Quantum Dot;Ising Interaction;Density MatrixReviews: “… one of the first books on the market about the basics of quantum computation … A good feature of this is that it is a succinct overview of quantum computation for someone who is just starting in the field.” Contemporary Physics
Posted in Computers

Quantum Computing

Author: Jozef Gruska

Publisher: McGraw-Hill Book Company Limited


Category: Computer science

Page: 439

View: 6442

In quantum computing, we witness an exciting and very promising merge of two of the deepest and most successful scientific and technological developments of this century: quantum physics and computer science. The book takes a very broad view of quantum computing and information processing in general. It deals with such areas as quantum algorithms, automata, complexity theory, information and communication, cryptography and theoretical results. These include such topics as quantum error correcting codes and methods of quantum fault tolerance computing, which have made the vision of a real quantum computer come closer. No previous knowledge of quantum mechanics is required. The book is written as a self-study introduction to quantum computing and can be used for a one-semester course on quantum computing, especially for computer scientists. To meet this aim the book contains numerous examples, figures and exercises.
Posted in Computer science

Mathematical Aspects of Quantum Computing 2007

Author: Mikio Nakahara,Robabeh Rahimi,Akira SaiToh

Publisher: World Scientific

ISBN: 9812814485

Category: Electronic books

Page: 222

View: 1626

This book provides a comprehensive overview of the mathematical aspects of quantum computing. It will be useful for graduate students and researchers interested in quantum computing from different areas of physics, mathematics, informatics and computer science. The lecture notes in this volume are written in a self-contained style, and hence are accessible for graduate students and researchers with even less background in the topics. Sample Chapter(s). Quantum Computing: An Overview (804 KB). Contents: Quantum Computing: An Overview (M Nakahara); Braid Group and Topological Quantum Computing (T Ootsuka & K Sakuma); An Introduction to Entanglement Theory (D J H Markham); Holonomic Quantum Computing and Its Optimization (S Tanimura et al.); Playing Games in Quantum Mechanical Settings: Features of Quantum Games (u K uzdemir et al.); Quantum Error-Correcting Codes (M Hagiwara); Controled Teleportation of an Arbitrary Unknown Two-Qubit Entangled State (V Ebrahimi et al.); Notes on the Dr-Cirac Classification (Y Ota et al.); Bang-Bang Control of Entanglement in Spin-Bus-Boson Model (R Rahimi et al.); Numerical Computation of Time-Dependent Multipartite Nonclassical Correlation (A SaiToh et al.); On Classical No-Cloning Theorem Under Liouville Dynamics and Distances (T Yamano & O Iguchi). Readership: Advanced undergraduate students, graduate students and researchers in physics, mathematics, informatics and computer science.
Posted in Electronic books

Quantum Computers

Author: Jon Schiller

Publisher: CreateSpace

ISBN: 1439243492

Category: Computers

Page: 182

View: 5981

I attended the Caltech Seminar Day on 16th May 09 and heard a lecture: Quantum Information Science presented by Professor J Preskill. His lecture had a number of slides showing how the three dimensions of Quantum states function. He mentioned Quantum Computers as the next step in computer science from the classical transistor based digital computers which have made such a change in the life of modern day humans. Since I have a deep interest in computer science based on my professional experience: designing Avionics systems for military aircraft which were the first to use digital computers, Teaching Computer Science as an adjunct assistant professor to graduate students, Designing and fabricating small digital computers in a small company I decided I needed to learn about Quantum Computers and where research is going in this important new technology. The way I discovered the status of Quantum Computer is using the Google & Yahoo search engines. I was happy that Indiana University and Caltech have active Quantum Computer Research programs in progress. Jon Schiller holds a BS in Physics from Caltech and a PhD from the University of Southern California in EE & Mathematics. He has authored: 21st Century Cosmology
Posted in Computers

Quantum Walks for Computer Scientists

Author: Salvador Elías Venegas-Andraca

Publisher: Morgan & Claypool Publishers

ISBN: 1598296566

Category: Computers

Page: 119

View: 2333

"Quantum computation, one of the latest joint ventures between physics and the theory of computation, is a scientific field whose main goals include the development of hardware and algorithms based on the quantum mechanical properties of those physical systems used to implement such algorithms." "Solving difficult tasks (for example, the Satisfiability Problem and other NP-complete problems) requires the development of sophisticated algorithms, many of which employ stochastic processes as their mathematical basis. Discrete random walks are a popular choice among those stochastic processes." "Inspired on the success of discrete random walks in algorithm development, quantum walks, an emerging field of quantum computation, is a generalization of random walks into the quantum mechanical world." "The purpose of this lecture is to provide a concise yet comprehensive introduction to quantum walks."--BOOK JACKET.
Posted in Computers

Programming The Universe

A Quantum Computer Scientist Takes on the Cosmos

Author: Seth Lloyd

Publisher: Random House

ISBN: 1446475875

Category: Science

Page: 256

View: 9434

IN THE BEGINNING WAS THE BIT... The universe is made of bits of information and it has been known for more than a century that every piece of the the universe - every electron, atom and molecule - registers these bits and that information. It is only in the last years, however, with the discovery and development of quantum computers, that scientists have gained a fundamental understanding of just how that information is registered and processed. Building on recent breakthroughs in quantum computation, Seth Lloyd shows how the universe itself is a giant computer. Every atom and elementary particle stores these bits, and every collision between those atoms and particles flips the bits into a new arrangement and effortlessly spins out beautiful and complex systems, including galaxies, planets and life itself. But every computer needs a program, the set of instructions that tell it what patterns to create. Where did the bits come from that tell the universe to create its magnificent complexity? Who - or what - is programming the universe?
Posted in Science

Classical and Quantum Computing

with C++ and Java Simulations

Author: Yorick Hardy,Willi H. Steeb

Publisher: Birkhäuser

ISBN: 3034883668

Category: Science

Page: 589

View: 1183

This is a self-contained, systematic and comprehensive introduction to all the subjects and techniques important in scientific computing. The style and presentation are readily accessible to undergraduates and graduates. A large number of examples, accompanied by complete C++ and Java code wherever possible, cover every topic.
Posted in Science

Quantum Computing

Author: Mika Hirvensalo

Publisher: Springer Science & Business Media

ISBN: 3662044617

Category: Computers

Page: 191

View: 2167

Mika Hirvensalo maps out the new multidisciplinary research area of quantum computing. The text contains an introduction to quantum computing as well as the most important recent results on the topic. The presentation is uniform and computer science-oriented. Thus, the book differs from most of the previous ones which are mainly physics-oriented. The special style of presentation makes the theory of quantum computing accessible to a larger audience. Many examples and exercises ease the understanding. In this second edition, a new chapter on quantum information has been added and numerous corrections, amendments, and extensions have been incorporated throughout the entire text.
Posted in Computers

Molecular Realizations of Quantum Computing 2007

Author: Mikio Nakahara

Publisher: World Scientific

ISBN: 9812838686

Category: Computers

Page: 282

View: 5279

This book provides an overview on physical realizations of quantum computing by means of molecular systems. It will be useful for graduate students and researchers interested in quantum computing from different areas of physics, physical chemistry, informatics and computer science. Each chapter is written in a self-contained manner and hence can be accessible for researchers and graduate students with even less background in the topics.
Posted in Computers

Die Erbschaft des Herrn de Leon


Author: Anna Enquist

Publisher: btb Verlag

ISBN: 3641159938

Category: Fiction

Page: 224

View: 6012

Als Kind schon fühlte sich Wanda Wiericke in der Musik vollkommen aufgehoben. Später, als gefeierte Konzertpianistin, vermisste sie nichts und niemanden, auch nicht ihren Mann. Jetzt, in einem Dorf in den französischen Pyrenäen, spielt sie nur noch für sich. Und doch ist ihr, als fehlte etwas, als habe ihr geliebter Klavierlehrer Max de Leon, der eines Tages für immer verschwand und ihr einen Koffer voller Noten hinterließ, ein Geheimnis mit sich genommen, das alles erklären könnte ...
Posted in Fiction

Quantum Computing Since Democritus

Author: Scott Aaronson

Publisher: Cambridge University Press

ISBN: 0521199565

Category: Computers

Page: 370

View: 4409

Takes students and researchers on a tour through some of the deepest ideas of maths, computer science and physics.
Posted in Computers

Quantum Computing Explained

Author: David McMahon

Publisher: John Wiley & Sons

ISBN: 9780470181362

Category: Technology & Engineering

Page: 420

View: 3452

A self-contained treatment of the fundamentals of quantum computing This clear, practical book takes quantum computing out of the realm of theoretical physics and teaches the fundamentals of the field to students and professionals who have not had training in quantum computing or quantum information theory, including computer scientists, programmers, electrical engineers, mathematicians, physics students, and chemists. The author cuts through the conventions of typical jargon-laden physics books and instead presents the material through his unique "how-to" approach and friendly, conversational style. Readers will learn how to carry out calculations with explicit details and will gain a fundamental grasp of: * Quantum mechanics * Quantum computation * Teleportation * Quantum cryptography * Entanglement * Quantum algorithms * Error correction A number of worked examples are included so readers can see how quantum computing is done with their own eyes, while answers to similar end-of-chapter problems are provided for readers to check their own work as they learn to master the information. Ideal for professionals and graduate-level students alike, Quantum Computing Explained delivers the fundamentals of quantum computing readers need to be able to understand current research papers and go on to study more advanced quantum texts.
Posted in Technology & Engineering