Every particle in the universe has been, at a given point of its history, interacting with other particles. So, how is it possible to decide whether a given particle can be treated as an isolated quantum system the states of which are vectors of a single Hilbert space? Altenatively, what conditions will force us to consider electron pairs emitted by radioactive decay or photon pairs resulting of radiative cascade, as a single sytem describe by a tensor product of two Hilbert spaces?
What is the criteria to decide whether a system is bipartite?
What is the criteria to decide whether a system is bipartite?
via Physics Forums RSS Feed http://www.physicsforums.com/showthread.php?t=707933&goto=newpost
0 commentaires:
Enregistrer un commentaire