Abstract:
We examine the existence of right-hand eigenstates (or eigenkets) of the boson creation operator a and determine their coordinate and their Bargmann representation. The eigenkets of the creation operator are ultrasingular and cannot be considered as a limiting case of normalizable states. Applications of these eigenstates as auxiliary states for purposes of representation of states by path integrals over coherent states are discussed. A completeness relation for coherent states on paths through the complex plane is derived and special examples of its application are considered.
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Received 9 March 2001 and Received in final form 13 June 2001
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Fan, Hy., Wünsche, A. Eigenstates of boson creation operator. Eur. Phys. J. D 15, 405–412 (2001). https://doi.org/10.1007/s100530170157
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DOI: https://doi.org/10.1007/s100530170157