6533b7d4fe1ef96bd1262652

RESEARCH PRODUCT

Relation Between the State of a System as Isolated and as Open

Matteo CampanellaMaria Stella MongiovìDavid Jou

subject

Isolated systemTheoretical physicsInvariant (physics)Mathematics

description

We discuss the differences in considering the description of a system as isolated or as a subsystem of a wider isolated system. In the latter case, a description in terms of a density operator directly arises without involving probability concepts, but as an orbit invariant. The non-probabilistic physical interpretation of the density operator is mathematically discussed.

yearjournalcountryeditionlanguage
2020-01-01
https://doi.org/10.1007/978-3-030-44207-1_3