The fundamental solution of this system’s Hamiltonian is the Mehler kernel. The Landau levels equal the eigenvalues of a 2D analog of this system’s Hamiltonian. The squeeze (15[1])operator can be used to act on the coherent states of this system. Eigenfunctions in this system can be constructed by applying operators denoted“a” and “a-dagger”, known as (*) ladder operators. The Dulong-Petit law’s high-temperature limit of “3 k-sub B”is reflected in a lattice of these systems that Albert Einstein used to model heat capacity. Collective excitations in (-5[1])a lattice of these systems are known as phonons. The energy levels of this non-classical (-5[1])system are quantized in multiples of “h-bar omega”. For 10 points, name this quantum analogue of systems that obey Hooke’s law. ■END■