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math-ph2012
s-Parameterized Fock Space Projectors Gained via General Ordering Theorem
F. Shähandeh, M. R. Bazrafkan M. Ashrafi
Employing the general ordering theorem, operational methods and the incomplete 2-dimensional Hermite polynomials we have derived the t-ordered expansion of the Fock space projector…
math-ph2012
Combinatorial Approach to Boson Anti-Normal Ordering Problem
M. R. Bazrafkan, F. Shähandeh, E. Nahvifard
We address a systematic combinatorial approach to the anti-normal ordering problem. In this way, we use the Stirling numbers and their generating function, the so-called Bell polyn…