# Classical behaviour in quantum systems: the case of straight tracks in a cloud chamber

@article{Teta2010ClassicalBI, title={Classical behaviour in quantum systems: the case of straight tracks in a cloud chamber}, author={Alessandro Teta}, journal={European Journal of Physics}, year={2010}, volume={31}, pages={215-227} }

The aim of this paper is to discuss in a pedagogical way the problem of the emergence of classical behaviour in certain physical systems which, in principle, are correctly described by quantum mechanics. It is stressed that the limit → 0 is not sufficient and the crucial role played by the environment must be taken into account. In particular, recalled is the old problem raised by Mott in 1929 (Proc. R. Soc. Lond. A 126 79) concerning the straight tracks observed in a cloud chamber, produced by… Expand

#### 5 Citations

A model of a quantum particle in a quantum environment: a numerical study

- Physics, Mathematics
- 2014

We define and investigate, via numerical analysis, a one dimensional toy-model of a cloud chamber. An energetic quantum particle, whose initial state is a superposition of two identical wave packets… Expand

The Mott Problem in One Dimension

- Physics
- 2014

In the α decay of a nucleus, the tracks left in the medium by the α particle are linear, even though its initial wave function is spherically symmetric. Understanding this quantum phenomenon has been… Expand

Tracks in the Cloud Chamber

- Physics
- 2014

This chapter is devoted to a historical introduction of the problem of tracks observed in a cloud chamber. Continuing along the lines of the subject we presented in our paper (Figari and Teta 2013),… Expand

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