Foundations of Physics

, Volume 45, Issue 12, pp 1561–1573 | Cite as

Dependence of the Time-Reading Process of the Salecker–Wigner Quantum Clock on the Size of the Clock



It is shown in the present note that the degree of the complexity of the time-reading process of the Salecker–Wigner clock depends on the size of the clock. This dependence leads to a relation between the size and the accuracy of the clock, and suggests a precise optimal value for the size in agreement with the order of magnitude value established by Salecker and Wigner.


Quantum clock Measurement of space–time distances Optimal mass 


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Copyright information

© Springer Science+Business Media New York 2015

Authors and Affiliations

  1. 1.Wigner Research Center for PhysicsBudapestHungary

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