36 citations · 55 across the 5 of their papers we have counts for
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Quantum model for black holes and clocks
Alessandro Coppo, Nicola Pranzini, Paola Verrucchi
We consider a stationary quantum system consisting of two non-interacting yet entangled subsystems, and . We identify a quantum theory characterizing such that, in the q…
A magnetic clock for a harmonic oscillator
Alessandro Coppo, Alessandro Cuccoli, Paola Verrucchi
We present an implementation of a recently proposed procedure for defining time, based on the description of the evolving system and its clock as non-interacting, entangled systems…
Threshold size for the emergence of a classical-like behaviour
Alessandro Coppo, Nicola Pranzini, Paola Verrucchi
In this work we design a procedure to estimate the minimum size beyond which a system is amenable to a classical-like description, i.e. a description based on representative points…
There is only one time
Caterina Foti, Alessandro Coppo, Giulio Barni +2
We draw a picture of physical systems that allows us to recognize what is this thing called "time" by requiring consistency not only with our notion of time but also with the way t…
From a quantum theory to a classical one
Alessandro Coppo, Alessandro Cuccoli, Caterina Foti +1
We present and discuss a formal approach for describing the quantum to classical crossover based on the group-theoretic construction of generalized coherent states. The method was…