InterJournal Complex Systems, 71
Status: Accepted
Manuscript Number: [71]
Submission Date: 963011
Error correction and symmetrization in quantum computers
Author(s): Asher Peres

Subject(s): CX.09

Category: Brief Article


A computer is a physical system, subject to the ordinary laws of nature. No error ever occurs in the application of these laws. What we call an error is a mismatch between what the computer does and what we wanted it to do. This may be caused by incorrect programming (software errors, that I shall not consider here), or by imperfect hardware. The computer engineers problem is to design the hardware in such a way that common flaws, which are unavoidable, will almost never cause errors in the final output (namely, in the relevant parts of the final state of the computer).

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