Analytic functions of the annihilation operator

Details Analytic functions of the annihilation operator Analytic functions of the annihilation operator

2010-01-05

arxiv.org/abs/1001.0777v3

Physics

Mathematical Physics

4 pages

Scientific paper

A method for construction of analytic function f of the annihilation operator is given for the first time. f(z) is analytic on some compact domain that does not separate the complex plane. A new form of the identity is given, which is well suited for domain of function. Using Runge's polynomial approximation theorem, such a function f of the annihilation operator is defined on the whole domain. The constructed operators are given in terms of dyads formed of Fock states.

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