1: n-particle System

ln this chapær we desc¡ibe some âspects of the quantum mechanics of a system of n particles.l A system of n distinguishable particles is conside¡ed i¡ Section 2.1 and system of rr indistinguishable (or identical) particles is consided in Section 2.2. An important feature of indistinguishabilty of particles is that it places restrictions on the form of the observables of the system and on symmetry properties of stâtes of the system.