Definition of "eigenstate" [eigenstate]

• A dynamic quantum mechanical state whose wave function is an eigenvector that corresponds to a physical quantity (noun)

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• "For ten points, calculate in the Heisenberg picture the time evolution of a harmonic oscillator state produced by acting on the lowest-energy eigenstate with a spatial translation operator."
• "In the Copenhagen formalism, one could calculate the probabilities of various outcomes assuming a measurement was taken at a particular time; during the interval between measurements, those “probability amplitudes” changed in definite, calculatable ways, while at the instant of measurement, another process took over and caused the system being measured to settle into a single eigenstate."
• "I suspect that DM consists largely of neutralinos, which is a mixed eigenstate of the supersymmetric pairs of the photon, Higgs and Z particle."