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First Draft of a Report
{{AccountNotLive}}
    on the EDVAC
The [[Heisenberg Uncertainty Principle|Heisenberg uncertainty principle]] for a particle does not allow a state in which the particle is simultaneously at a definite location and has also a definite momentum. Instead the particle has a range of momentum and spread in location attributable to quantum fluctuations.
              by
      John von Neumann


 
An uncertainty principle applies to most of quantum mechanical operators that do not commute (specifically, to every pair of operators whose commutator is a non-zero scalar operator).
1.2 An automatic computing system is a (usually highly composite) device, which can carry out
instructions to perform calculations of a considerable order of complexity—e.g. to solve a non-linear
partial differential equation in 2 or 3 independent variables numerically.
 
    This report has been published in: IEEE Annals of the History of Computing, Vol. 15, No. 4,
pp.27-75, 1993.
 
 
[http://lh5.ggpht.com/_2qmjr1uPSSQ/Sr03qlXp4UI/AAAAAAAAACU/hC31rInVVSI/ibmlogo.jpg]
 
[http://picasaweb.google.com/IBMResearchAlmaden/IBMCelebrates20YearsOfMovingAtoms#5385521934130340162]

Latest revision as of 03:25, 22 November 2023


The account of this former contributor was not re-activated after the server upgrade of March 2022.


The Heisenberg uncertainty principle for a particle does not allow a state in which the particle is simultaneously at a definite location and has also a definite momentum. Instead the particle has a range of momentum and spread in location attributable to quantum fluctuations.

An uncertainty principle applies to most of quantum mechanical operators that do not commute (specifically, to every pair of operators whose commutator is a non-zero scalar operator).