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paper

The Gamow Functional

arXiv:quant-ph/0209147 · doi:10.1016/S0375-9601(01)00194-3

Abstract

We present a formalism that represents pure states, mixtures and generalized states as functionals on an algebra containing the observables of the system. Along these states, there are other functionals that decay exponentially at all times and therefore can be used to describe resonance phenomena.

10 pages