說明 
1 electronic text (viii, 71 p. : ill.) : digital file 
系列 
Synthesis lectures on quantum computing, 19459734 ; # 4


Synthesis digital library of engineering and computer science


Synthesis lectures on quantum computing, 19459734 ; # 4

附註 
Part of: Synthesis digital library of engineering and computer science 

Series from website 

Includes bibliographical references (p. 5970) 

Preface  Acknowledgments  

1. Introduction  

2. The curse of the open system  Optimism  The birth of quantum error correction  The miracle of active faulttolerant QEC  Pessimism  The Hamiltonian picture  Those who cannot remember the past  Two problems in the foundations of SM  The roots of the open system approach  There is always a little noise  Towards more realistic noise models  Optimal skepticism  

3. To balance a pencil on its tip  The passive approach to quantum error correction  Lessons from the foundations of classical statistical mechanics  To balance a pencil on its tip  Practical vs. physical possibility  

4. Universality at all cost  Overview  Noise, classical or quantum  Commit a sin twice and it will not seem a crime  The return of Maxwell's demon  Progress, or lack thereof  True and false collapse  The search for QIMDS  The ancilla argument  Progress  

5. Coda  

A. The dynamics of an open quantum system  B. A noiseless qubit  Bibliography  Author's biography 

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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 faulttolerant, and computationally superior quantum computer is currently taking place. Optimists rely on the premise that, under a certain threshold of errors, an arbitrary long faulttolerant 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 

Also available in print 
主題 
Errorcorrecting codes (Information theory)


Quantum computers


Statistical mechanics  Philosophy


computational complexity


decoherence


errorcorrection


faulttolerance


Landauer's Principle


Maxwell's Demon


quantum computing


statistical mechanics


thermodynamics

