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Journal of Changchun Normal University

Prospect for Quantum Mechanics in University of Science and Engineering

Yu Hua Cui

Published Jan 1, 2008• 0 citations
OpenAlex

Abstract

Quantum mechanics is a new mechanical system to sign the aggregativity of atomic group of material.The importance of qrantum mechanics urges any people to understand the basic concept and the basic idea of it.

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Why quantum mechanics?

P.A. Lindsay

It has become fashionable to say that all electrical engineers, or at least those specialising in communication engineering, ought to be familiar with the basic ideas of quantum mechanics. In view of the ever-increasing load of university teaching, is this statement justified, and, if so, why? A reasonable case for the teaching of quantum mechanics to engineers can be made, and some simple ideas and mental analogies can be developed which may prove to be of use to electrical engineers.

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Quantum mechanics has evolved from a subject of study in pure physics to one with a wide range of applications in many diverse fields. The basic concepts of quantum mechanics are explained in this book in a concise and easy-to-read manner, leading toward applications in solid-state electronics and optics. Following a logical sequence, the book focuses on key ideas and is conceptually and mathematically self-contained. The fundamental principles of quantum mechanics are illustrated by showing their application to systems such as the hydrogen atom, multi-electron ions and atoms, the formation of simple organic molecules and crystalline solids of practical importance. It leads on from these basic concepts to discuss some of the most significant applications in semiconductor electronics and optics. Containing many homework problems, the book is suitable for senior-level undergraduate and graduate-level students in electrical engineering, material sciences, applied physics and chemistry.

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Quantum random walks - an introductory overview

Julia Kempe, Albert Einstein

This article aims to provide an introductory survey on quantum random walks. Starting from a physical effect to illustrate the main ideas we will introduce quantum random walks, review some of their properties and outline their striking differences to classical walks. We will touch upon both physical effects and computer science applications, introducing some of the main concepts and language of present day quantum information science in this context. We will mention recent developments in this new area and outline some open questions. 1. Overview Ever since the discovery of quantum mechanics people have been puzzled by the counter-intuitive character of the laws of nature. Over time we have learned to accept more and more effects that are unimaginable in a classical Newtonian world. Modern technology exploits quantum effects both to our benefit and detriment—among the memorable examples we should cite laser technology and not omit the atomic bomb. In recent years interest in quantum information theory has been generated by the prospect of employing its laws to design devices of surprising power [1]. New ideas include quantum cryptography [2, 3] and quantum computation. In 1994 Shor [4] discovered a quantum algorithm to factor numbers efficiently (that is in time that grows only polynomically with the length of the number to be factored). This has unleashed a wave of activity across a broad range of disciplines: physics, computer science, mathematics and engineering. This fruitful axis of research has uncovered many new effects that are strikingly different from their classical counterparts, both from the physical point of view as well as from a computer science and communication theory perspective. Over time these communities have gained a greater understanding of the concepts and notions of the other. The idea that information cannot be separated from

•Jan 1, 2003•920 citations

Topological Quantum States: Design and Engineering

Tudor D. Stanescu

T HE FUNDAMENTAL KNOWLEDGE BEHIND MODERN INformation technology, the most visible side of science which permeates almost every aspect of our daily lives, rests on two pillars: information science and quantum mechanics. Knowing how to efficiently communicate and process information and understanding the physical phenomena and material properties that are essential to building functional devices have provided us with unprecedented convenience and mastery over nature, possibly with the price of becoming the slaves of our computers and gadgets. Nevertheless, information science and quantum mechanics enter the backbone of current technologies as distinct and independent fields. Therefore, one is naturally tempted to ask several questions. Is there land between these two realms? If yes, what can grow out of that land? In particular, can information theory tell us something relevant about the foundations of quantum mechanics? On the other hand, can one formulate a quantum information science and in what sense would this be different from the classical version? In this chapter we introduce several basic concepts that will allow us to better understand the implications of these questions and grasp the essential ideas behind the answers formulated so far. Discussing these fundamental concepts will also shed light on the role of topological quantum matter in the economy of quantum computation. Here we focus on the key ideas that were launched into the arena by classical information theory and classical computation science. The metamorphosis of these ideas after the encounter with quantum mechanics will be discussed in the final three chapters of this book.

CRC Press eBooks•Dec 13, 2016•0 citations
Quantum mechanics has evolved from a subject of study in pure physics to one with a wide range of applications in many diverse fields. The basic concepts of quantum mechanics are explained in this book in a concise and easy-to-read manner, leading toward applications in solid-state electronics and optics. Following a logical sequence, the book focuses on key ideas and is conceptually and mathematically self-contained. The fundamental principles of quantum mechanics are illustrated by showing their application to systems such as the hydrogen atom, multi-electron ions and atoms, the formation of simple organic molecules and crystalline solids of practical importance. It leads on from these basic concepts to discuss some of the most significant applications in semiconductor electronics and optics. Containing many homework problems, the book is suitable for senior-level undergraduate and graduate-level students in electrical engineering, material sciences, applied physics and chemistry.
This article aims to provide an introductory survey on quantum random walks. Starting from a physical effect to illustrate the main ideas we will introduce quantum random walks, review some of their properties and outline their striking differences to classical walks. We will touch upon both physical effects and computer science applications, introducing some of the main concepts and language of present day quantum information science in this context. We will mention recent developments in this new area and outline some open questions. 1. Overview Ever since the discovery of quantum mechanics people have been puzzled by the counter-intuitive character of the laws of nature. Over time we have learned to accept more and more effects that are unimaginable in a classical Newtonian world. Modern technology exploits quantum effects both to our benefit and detriment—among the memorable examples we should cite laser technology and not omit the atomic bomb. In recent years interest in quantum information theory has been generated by the prospect of employing its laws to design devices of surprising power [1]. New ideas include quantum cryptography [2, 3] and quantum computation. In 1994 Shor [4] discovered a quantum algorithm to factor numbers efficiently (that is in time that grows only polynomically with the length of the number to be factored). This has unleashed a wave of activity across a broad range of disciplines: physics, computer science, mathematics and engineering. This fruitful axis of research has uncovered many new effects that are strikingly different from their classical counterparts, both from the physical point of view as well as from a computer science and communication theory perspective. Over time these communities have gained a greater understanding of the concepts and notions of the other. The idea that information cannot be separated from
T HE FUNDAMENTAL KNOWLEDGE BEHIND MODERN INformation technology, the most visible side of science which permeates almost every aspect of our daily lives, rests on two pillars: information science and quantum mechanics. Knowing how to efficiently communicate and process information and understanding the physical phenomena and material properties that are essential to building functional devices have provided us with unprecedented convenience and mastery over nature, possibly with the price of becoming the slaves of our computers and gadgets. Nevertheless, information science and quantum mechanics enter the backbone of current technologies as distinct and independent fields. Therefore, one is naturally tempted to ask several questions. Is there land between these two realms? If yes, what can grow out of that land? In particular, can information theory tell us something relevant about the foundations of quantum mechanics? On the other hand, can one formulate a quantum information science and in what sense would this be different from the classical version? In this chapter we introduce several basic concepts that will allow us to better understand the implications of these questions and grasp the essential ideas behind the answers formulated so far. Discussing these fundamental concepts will also shed light on the role of topological quantum matter in the economy of quantum computation. Here we focus on the key ideas that were launched into the arena by classical information theory and classical computation science. The metamorphosis of these ideas after the encounter with quantum mechanics will be discussed in the final three chapters of this book.