In quantum mechanics, a particle system is a collection of particles that interact with each other according to the laws of quantum mechanics. The most famous example of a particle system is the hydrogen atom, which consists of a single proton and a single electron. The proton and electron interact with each other via the electromagnetic force, and the resulting behavior of the system is governed by the laws of quantum mechanics.
Other related questions:
Q: What do you mean by single particle quantum state?
A: A single particle quantum state is a quantum state in which a single particle is described by a wave function.
Q: What is a two particle system?
A: A two particle system is a system consisting of two particles.
Q: What is single particle in physics?
A: A single particle is a particle that is not bound to any other particle.
Q: What is 1d box particle?
A: 1d box particle is a particle that is confined within a one-dimensional box.