Tunneling, diffusion, and dissociation of Feshbach molecules in optical lattices

Tunneling of Atoms, Nuclei and Molecules

“…Fundamental aspects of diffusion of composite objects, such as molecules, subject to transforming transitions from bound to continuum states can be studied in these optical lattices [44]. In Ref.…”

“…In Ref. [44] the confining potential described by the optical lattice potential has been assumed to be a sine function with a periodicity D, equal to half the wavelength of the interfering laser. The Hamiltonian for the molecule is given by H = T 1 + T 2 + V 1 + V 2 + v, where T i is the kinetic energy of atom i, V i is the periodic potential of the lattice and v is the interaction potential between the atoms for a diatomic molecule.…”

“…A loosely bound, Rydberg-like, system of molecules diffusing through the lattice molecule was studied in Ref. [44]. The molecules tend to dissociate as they tunnel through the barrier when their binding energy decreases.…”

“…Diffusion in optical lattices -Using standing wave patterns of reflected laser beams optical lattices can be built to study the diffusion of ultracold atoms and molecules [37; 38; 39; 40]. Fundamental aspects of diffusion of composite objects, such as molecules, subject to transforming transitions from bound to continuum states can be studied in these optical lattices [41]. In Ref.…”

“…In Ref. [41] the confining potential described by the optical lattice potential has been assumed to be a sine function with a periodicity D, equal to half the wavelength of the interfering laser. The Hamiltonian for the molecule is given by…”