Quantum system

A quantum system is a portion of the whole Universe (environment or physical world) which is taken under consideration to make analysis or to study for quantum mechanics pertaining to the wave-particle duality in that system. Everything outside this system (i.e. environment) is studied only to observe its effects on the system. A quantum system involves the wave function and its constituents, such as the momentum and wavelength of the wave for which wave function is being defined.

See also

• Quantum
• Two-state quantum system
• Nonlinear system
• Dynamical system
• Thermodynamic system
• Physical system
• Quantum state
• Quantum number
• Ground state
• Excited state
• Energy levels
• Degenerate energy levels