Resultados de Pesquisa

INGLÊS

Approximability Of Optimization Problems Through Adiabatic Quantum Computation

de Guillermo Morales-Luna e William Cruz-Santos

31,08€ + 10% EM CARTÃO

portes grátis

 Table of Contents: Preface / Acknowledgments / Introduction / Approximability of NP-hard Problems / Adiabatic Quantum Computing / Efficient Hamiltonian Construction / AQC for Pseudo-Boolean Optimization / A General Strategy to Solve NP-Hard Problems / Conclusions / Bibliography / Authors' Biographies
INGLÊS

Quantum Radar

de Marco Lanzagorta

31,08€ + 10% EM CARTÃO

portes grátis

 In addition, this book offers some new results, including an analytical study of quantum interferometry in the X-band radar region with a variety of atmospheric conditions, a derivation of a quantum radar equation, and a discussion of quantum radar jamming.
INGLÊS

Broadband Quantum Cryptography

de Daniel Rogers

33,79€ + 10% EM CARTÃO

portes grátis

 Quantum cryptography is a rapidly developing field that draws from a number of disciplines, from quantum optics to information theory to electrical engineering.
INGLÊS

Quantum Computer Science

de Jeffrey Uhlmann e Marco Lanzagorta

31,08€ + 10% EM CARTÃO

portes grátis

 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
INGLÊS

Negative Quantum Channels

de James M. Mccracken

46,36€ + 10% EM CARTÃO

DISPONIBILIDADE IMEDIATA

 This book is a brief introduction to negative quantum channels, i.e., linear, trace-preserving (and consistent) quantum maps that are not completely positive. The flat and sharp operators are introduced and explained. Complete positivity is presented as a mathematical property, but it is argued that complete positivity is not a physical requirement of all quantum operations. Negativity, a measure of the lack of complete positivity, is proposed as a tool for empirically testing complete positivity assumptions. Table of Contents: Preface / Acknowledgments / Introduction and Definition of Terms / Tomography / Non-Positive Reduced Dynamics / Complete Positivity / Physical Motivation of Complete Positivity / Measures of Complete Positivity / Negative Channels / Negative Climates with Diagonal Composite Dynamics / Rabi Channels / Physical Motivations for Sharp Operations / Negative Qubit Channel Examples with Multi-Qubit Baths / Proposed Experimental Demonstration of Negativity / Implications of Negative Channels / Uses for Negative Channels / Conclusions / Bibliography / Author's Biography
INGLÊS

Quantum Robotics - A Primer On Current Science And Future Perspectives

de Alex Mitev, Ben Shih, Prateek Tandon, Stanley Lam, Tanay Mehta e Zhiyang Ong

59,61€ + 10% EM CARTÃO

DISPONIBILIDADE IMEDIATA

 Quantum robotics is an emerging engineering and scientific research discipline that explores the application of quantum mechanics, quantum computing, quantum algorithms, and related fields to robotics.
INGLÊS

Adiabatic Quantum Computation And Quantum Annealing - Theory And Practice

de Catherine C. Mcgeoch

43,71€ + 10% EM CARTÃO

DISPONIBILIDADE IMEDIATA

 Adiabatic quantum computation (AQC) is an alternative to the better-known gate model of quantum computation. The two models are polynomially equivalent, but otherwise quite dissimilar: one property that distinguishes AQC from the gate model is its analog nature. Quantum annealing (QA) describes a type of heuristic search algorithm that can be implemented to run in the ``native instruction set'' of an AQC platform. D-Wave Systems Inc. manufactures {quantum annealing processor chips} that exploit quantum properties to realize QA computations in hardware. The chips form the centerpiece of a novel computing platform designed to solve NP-hard optimization problems. Starting with a 16-qubit prototype announced in 2007, the company has launched and sold increasingly larger models: the 128-qubit D-Wave One system was announced in 2010 and the 512-qubit D-Wave Two system arrived on the scene in 2013. A 1,000-qubit model is expected to be available in 2014. This monograph presents an introductory overview of this unusual and rapidly developing approach to computation. We start with a survey of basic principles of quantum computation and what is known about the AQC model and the QA algorithm paradigm. Next we review the D-Wave technology stack and discuss some challenges to building and using quantum computing systems at a commercial scale. The last chapter reviews some experimental efforts to understand the properties and capabilities of these unusual platforms. The discussion throughout is aimed at an audience of computer scientists with little background in quantum computation or in physics. Table of Contents: Acknowledgments / Introduction / Adiabatic Quantum Computation / Quantum Annealing / The D-Wave Platform / Computational Experience / Bibliography / Author's Biography
INGLÊS

Quantum Computer Science

de Jeffrey Uhlmann e Marco Lanzagorta

37,09€ + 10% EM CARTÃO

DISPONIBILIDADE IMEDIATA

 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
INGLÊS

Quantum Radar

de Marco Lanzagorta

39,74€ + 10% EM CARTÃO

DISPONIBILIDADE IMEDIATA

 In addition, this book offers some new results, including an analytical study of quantum interferometry in the X-band radar region with a variety of atmospheric conditions, a derivation of a quantum radar equation, and a discussion of quantum radar jamming.
INGLÊS

High Level Structures For Quantum Computing

de Jaroslaw Miszczak

37,09€ + 10% EM CARTÃO

DISPONIBILIDADE IMEDIATA

 This book is concerned with the models of quantum computation. Information processing based on the rules of quantum mechanics provides us with new opportunities for developing more efficient algorithms and protocols. However, to harness the power offered by quantum information processing it is essential to control the behavior of quantum mechanical objects in a precise manner. As this seems to be conceptually difficult at the level of quantum states and unitary gates, high-level quantum programming languages have been proposed for this purpose. The aim of this book is to provide an introduction to abstract models of computation used in quantum information theory. Starting from the abstract models of Turing machine and finite automata, we introduce the models of Boolean circuits and Random Access Machine and use them to present quantum programming techniques and quantum programming languages. Table of Contents: Introduction / Turing machines / Quantum Finite State Automata / Computational Circuits / Random Access Machines / Quantum Programming Environment / Quantum Programming Languages / Imperative quantum programming / Functional Quantum Programming / Outlook
INGLÊS

Approximability Of Optimization Problems Through Adiabatic Quantum Computation

de Guillermo Morales-Luna e William Cruz-Santos

37,09€ + 10% EM CARTÃO

DISPONIBILIDADE IMEDIATA

 The adiabatic quantum computation (AQC) is based on the adiabatic theorem to approximate solutions of the Schrödinger equation. The design of an AQC algorithm involves the construction of a Hamiltonian that describes the behavior of the quantum system. This Hamiltonian is expressed as a linear interpolation of an initial Hamiltonian whose ground state is easy to compute, and a final Hamiltonian whose ground state corresponds to the solution of a given combinatorial optimization problem. The adiabatic theorem asserts that if the time evolution of a quantum system described by a Hamiltonian is large enough, then the system remains close to its ground state. An AQC algorithm uses the adiabatic theorem to approximate the ground state of the final Hamiltonian that corresponds to the solution of the given optimization problem. In this book, we investigate the computational simulation of AQC algorithms applied to the MAX-SAT problem. A symbolic analysis of the AQC solution is given in order to understand the involved computational complexity of AQC algorithms. This approach can be extended to other combinatorial optimization problems and can be used for the classical simulation of an AQC algorithm where a Hamiltonian problem is constructed. This construction requires the computation of a sparse matrix of dimension 2n × 2n, by means of tensor products, where n is the dimension of the quantum system. Also, a general scheme to design AQC algorithms is proposed, based on a natural correspondence between optimization Boolean variables and quantum bits. Combinatorial graph problems are in correspondence with pseudo-Boolean maps that are reduced in polynomial time to quadratic maps. Finally, the relation among NP-hard problems is investigated, as well as its logical representability, and is applied to the design of AQC algorithms. It is shown that every monadic second-order logic (MSOL) expression has associated pseudo-Boolean maps that can be obtained by expanding the given expression, and also can be reduced to quadratic forms. Table of Contents: Preface / Acknowledgments / Introduction / Approximability of NP-hard Problems / Adiabatic Quantum Computing / Efficient Hamiltonian Construction / AQC for Pseudo-Boolean Optimization / A General Strategy to Solve NP-Hard Problems / Conclusions / Bibliography / Authors' Biographies
INGLÊS

Quantum Walks For Computer Scientists

de Salvador Venegas-Andraca

37,09€ + 10% EM CARTÃO

DISPONIBILIDADE IMEDIATA

 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.
INGLÊS

Quantum Robotics - A Primer On Current Science And Future Perspectives

de Alex Mitev, Ben Shih, Prateek Tandon, Stanley Lam, Tanay Mehta e Zhiyang Ong

31,08€ + 10% EM CARTÃO

portes grátis

 Quantum robotics is an emerging engineering and scientific research discipline that explores the application of quantum mechanics, quantum computing, quantum algorithms, and related fields to robotics.
INGLÊS

Adiabatic Quantum Computation And Quantum Annealing - Theory And Practice

de Catherine C. Mcgeoch

31,08€ + 10% EM CARTÃO

portes grátis

 Adiabatic quantum computation (AQC) is an alternative to the better-known gate model of quantum computation.Table of Contents: Acknowledgments / Introduction / Adiabatic Quantum Computation / Quantum Annealing / The D-Wave Platform / Computational Experience / Bibliography / Author's Biography
INGLÊS

Negative Quantum Channels

de James M. Mccracken

31,08€ + 10% EM CARTÃO

portes grátis
INGLÊS

The Complexity Of Noise - A Philosophical Outlook On Quantum Error Correction

de Amit Hagar

31,08€ + 10% EM CARTÃO

portes grátis
INGLÊS

Quantum Robotics - A Primer On Current Science And Future Perspectives

de Alex Mitev, Ben Shih, Prateek Tandon, Stanley Lam, Tanay Mehta e Zhiyang Ong

81,11€ + 10% EM CARTÃO

portes grátis
INGLÊS

The Complexity Of Noise - A Philosophical Outlook On Quantum Error Correction

de Amit Hagar

30,46€ + 10% EM CARTÃO

DISPONIBILIDADE IMEDIATA

 In quantum computing, where algorithms exist that can solve computational problems more efficiently than any known classical algorithms, the elimination of errors that result from external disturbances or from imperfect gates has become the "holy grail", and a worldwide quest for a large scale fault-tolerant, and computationally superior, quantum computer is currently taking place. Optimists rely on the premise that, under a certain threshold of errors, an arbitrary long fault-tolerant quantum computation can be achieved with only moderate (i.e., at most polynomial) overhead in computational cost. Pessimists, on the other hand, object that there are in principle (as opposed to merely technological) reasons why such machines are still inexistent, and that no matter what gadgets are used, large scale quantum computers will never be computationally superior to classical ones. Lacking a complete empirical characterization of quantum noise, the debate on the physical possibility of such machines invites philosophical scrutiny. Making this debate more precise by suggesting a novel statistical mechanical perspective thereof is the goal of this project. Table of Contents: Introduction / The Curse of the Open System / To Balance a Pencil on Its Tip / Universality at All Cost / Coda
INGLÊS

Broadband Quantum Cryptography

de Daniel Rogers

33,11€ + 10% EM CARTÃO

DISPONIBILIDADE IMEDIATA

 Quantum cryptography is a rapidly developing field that draws from a number of disciplines, from quantum optics to information theory to electrical engineering.
INGLÊS

High Level Structures For Quantum Computing

de Jaroslaw Miszczak

31,08€

portes grátis

ESGOTADO OU NÃO DISPONÍVEL

 Table of Contents: Introduction / Turing machines / Quantum Finite State Automata / Computational Circuits / Random Access Machines / Quantum Programming Environment / Quantum Programming Languages / Imperative quantum programming / Functional Quantum Programming / Outlook
INGLÊS

Quantum Walks For Computer Scientists

de Salvador Venegas-Andraca

31,08€

portes grátis

ESGOTADO OU NÃO DISPONÍVEL

 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.
INGLÊS

Adiabatic Quantum Computation And Quantum Annealing - Theory And Practice

de Catherine C. Mcgeoch

ESGOTADO OU NÃO DISPONÍVEL

 Adiabatic quantum computation (AQC) is an alternative to the better-known gate model of quantum computation. This monograph presents an introductory overview of this unusual and rapidly developing approach to computation. The discussion throughout is aimed at an audience of computer scientists with little background in quantum computation or in physics.
INGLÊS

Approximability Of Optimization Problems Through Adiabatic Quantum Computation

de Guillermo Morales-Luna e William Cruz-Santos

ESGOTADO OU NÃO DISPONÍVEL
INGLÊS

The Complexity Of Noise - A Philosophical Outlook On Quantum Error Correction

de Amit Hagar

ESGOTADO OU NÃO DISPONÍVEL
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