Ordering of the exponential of a quadratic in boson operators. I. Single mode case
C. L. Mehta · Journal of Mathematical Physics · 1977
The Weyl ordered form of the operator exp[αâ2+βâ2++γ (â+â+ââ+)] is derived in a very simple way. Using this result, we also obtain the normal and antinormal ordered forms as well as the diagonal coherent states representation of this operator.