Foundations of Science

, Volume 17, Issue 3, pp 223–244 | Cite as

From Permanence to Total Availability: A Quantum Conceptual Upgrade

  • Massimiliano Sassoli de BianchiEmail author


We consider the classical concept of time of permanence and observe that its quantum equivalent is described by a bona fide self-adjoint operator. Its interpretation, by means of the spectral theorem, reveals that we have to abandon not only the idea that quantum entities would be characterizable in terms of spatial trajectories but, more generally, that they would possess the very attribute of spatiality. Consequently, a permanence time shouldn’t be interpreted as a “time” in quantum mechanics, but as a measure of the total availability of a quantum entity in participating to a process of creation of a spatial localization.


Time of arrival Time of permanence Time-delay Total availability Total availability shift Creation-discovery view 


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© Springer Science+Business Media B.V. 2011

Authors and Affiliations

  1. 1.Laboratorio di Autoricerca di BaseCaronaSwitzerland

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