quantum state
state of an isolated quantum system, represented as an element of a projective Hilbert space
pointer state
quantum states less perturbed by decoherence than others, corresponding to classical states of the system after decoherence
triplet state
quantum state of a system with a spin of quantum number s =1, such that there are three allowed values of the spin component, ms = −1, 0, and +1
singlet state
special low-energy state in quantum mechanics
doublet state
mixed quantum state of a system with a spin of 1/2, such that there are two allowed values of the spin component, −1/2 and +1/2
bound state
system where a particle is subject to a potential such that the particle has a tendency to remain localised in one or more regions of space
separable state
quantum state that isn’t entangled
electronic state
individual quantum state that an atom or molecule's electrons can take on