Spectroscopic probe of the van der Waals interaction between polar molecules and a curved surface
Author(s)Bimonte, Giuseppe; Emig, Thorsten; Jaffe, Robert L; Kardar, Mehran
MetadataShow full item record
We study the shift of rotational levels of a diatomic polar molecule due to its van der Waals interaction with a gently curved dielectric surface at temperature T, and submicron separations. The molecule is assumed to be in its electronic and vibrational ground state, and the rotational degrees are described by a rigid rotor model. We show that under these conditions retardation effects and surface dispersion can be neglected. The level shifts are found to be independent of T, and given by the quantum state averaged classical electrostatic interaction of the dipole with its image on the surface. We use a derivative expansion for the static Green's function to express the shifts in terms of surface curvature. We argue that the curvature induced line splitting is experimentally observable, and not obscured by natural linewidths and thermal broadening.
DepartmentMassachusetts Institute of Technology. Center for Theoretical Physics; Massachusetts Institute of Technology. Department of Physics; Massachusetts Institute of Technology. Laboratory for Nuclear Science; MIT Energy Initiative; MultiScale Materials Science for Energy and Environment, Joint MIT-CNRS Laboratory
Physical Review A
American Physical Society
Bimonte, Giuseppe et al. “Spectroscopic Probe of the van Der Waals Interaction between Polar Molecules and a Curved Surface.” Physical Review A 94.2 (2016): n. pag.
Final published version