Abstract
By adapting the white noise theory, the quantum analogues of the (classical) Gross Laplacian and Levy Laplacian, so called the quantum Gross Laplacian and quantum Levy Laplacian, respectively, are introduced as the Laplacians acting on the spaces of generalized operators. Then the integral representations of the quantum Laplacians in terms of quantum white noise derivatives are studied. Correspondences of the classical Laplacians and quantum Laplacians are studied. The solutions of heat equations associated with the quantum Laplacians are obtained from a normal-ordered white noise differential equation.