Abstract
A quantum system is prepared at an instant t0 to enable the measurement of certain observables: energy, angular momentum, and q linear momentum. For a very brief period, the system enters into interaction with another quantum system (we are not interested in how this interaction is produced). At a later instant t1 we again measure the system’s observables. It goes without saying that for most of the duration of the experiment (i.e., between instants t1 and t0) the different constituents of the physical system under observation are almost free (Fig. 1).
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© 1998 Springer-Verlag Berlin Heidelberg
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Elbaz, E. (1998). Scattering of Particles. In: Quantum. Texts and Monographs in Physics. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-60266-5_15
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DOI: https://doi.org/10.1007/978-3-642-60266-5_15
Publisher Name: Springer, Berlin, Heidelberg
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