State information refers to the "information state" of a system, designed or made for using such information.

Physics

• In classical mechanics, state is a complete description of a system in terms of parameters such as positions and momentums at a particular moment in time
• Quantum state, in physics, the state of a quantum mechanical system given by a vector in the underlying Hilbert space
• Excited state
• Dynamical systems, a concept in mathematics where a fixed rule describes the time dependence of a point in a geometrical space
• Stationary state, an eigenvector of a Hamiltonian
• Thermodynamic state, a set of physical quantities (e.g. temperature, pressure, and composition) describing variable properties of a given thermodynamic system

Computer science

• State (computer science), a unique configuration of information in a program or machine