Computation and Its Limits

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OUP Oxford, Mar 15, 2012 - Computers - 239 pages
Computation and its Limits is an innovative cross-disciplinary investigation of the relationship between computing and physical reality. It begins by exploring the mystery of why mathematics is so effective in science and seeks to explain this in terms of the modelling of one part of physical reality by another. Going from the origins of counting to the most blue-skies proposals for novel methods of computation, the authors investigate the extent to which the laws of nature and of logic constrain what we can compute. In the process they examine formal computability, the thermodynamics of computation and the promise of quantum computing.
 

Contents

1 Introduction
1
2 What is computation?
6
3 Mechanical computers and their limits
28
4 Logical limits to computing
47
5 Heat information and geometry
83
6 Quantum computers
128
7 Beyond the logical limits of computing?
173
8 Hypercomputing proposals
187
Bibliography
216
Index
226
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