Measuring the energy translation operator
نویسنده
چکیده
An operator is defined that is analogous to the time translation operator except that it translates every component of a state in energy by an amount ε. A prescription for measuring expectation values of this operator is described. These measurements provide phase information that is not obtainable by other means. The similarity of this treatment with the treatment of reccurrence spectroscopy in the time domain is presented. Two examples from atomic systems are described, but the usefulness of this operator is not restricted to atomic processes. 31.15.+q,32.80.Dz,42.50.Md Typeset using REVTEX
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