Hypercomputation: computing more than the Turing machine
Abstract
Due to common misconceptions about the ChurchTuring thesis, it has been widely assumed that the Turing machine provides an upper bound on what is computable. This is not so. The new field of hypercomputation studies models of computation that can compute more than the Turing machine and addresses their implications. In this report, I survey much of the work that has been done on hypercomputation, explaining how such nonclassical models fit into the classical theory of computation and comparing their relative powers. I also examine the physical requirements for such machines to be constructible and the kinds of hypercomputation that may be possible within the universe. Finally, I show how the possibility of hypercomputation weakens the impact of Godel's Incompleteness Theorem and Chaitin's discovery of 'randomness' within arithmetic.
 Publication:

arXiv Mathematics eprints
 Pub Date:
 September 2002
 arXiv:
 arXiv:math/0209332
 Bibcode:
 2002math......9332O
 Keywords:

 Mathematics  Logic;
 Mathematics  Mathematical Physics;
 Computer Science  Other;
 Mathematical Physics;
 03D10 (Primary) 68Q10;
 68Q10;
 68Q30 (Secondary)
 EPrint:
 57 pages, 9 figures