In quantum physics, a quantum state is a mathematical object that fully describes a quantum system. One typically imagines some experimental apparatus and procedure which "prepares" this quantum state; the mathematical object then reflects the setup of the apparatus. Quantum states can be statistically mixed, corresponding to an experiment involving a random change of the parameters. Our non-paper poster material is waterproof and tear resistant. It is meant to last a lifetime and can even be used outside. This option does not come with frame. Custom orders accepted.