Manipulating scattering of ultracold atoms with light-induced dissipation Journal Article

Author(s): Lemeshko, Mikhail P
Article Title: Manipulating scattering of ultracold atoms with light-induced dissipation
Abstract: Recently it has been shown that pairs of atoms can form metastable bonds due to non-conservative forces induced by dissipation [Lemeshko&Weimer, Nature Comm. 4, 2230 (2013)]. Here we study the dynamics of interaction-induced coherent population trapping - the process responsible for the formation of dissipatively bound molecules. We derive the effective dissipative potentials induced between ultracold atoms by laser light, and study the time evolution of the scattering states. We demonstrate that binding occurs on short timescales of ~10 microseconds, even if the initial kinetic energy of the atoms significantly exceeds the depth of the dissipative potential. Dissipatively-bound molecules with preordained bond lengths and vibrational wavefunctions can be created and detected in current experiments with ultracold atoms.
Keywords: ultracold atoms; cold controlled collisions; coherent population trapping; dark state; dissipative preparation of quantum states; dissipatively-bound molecules; non-Hermitian Hamiltonian; Rydberg dressing
Journal Title: Frontiers Physics
Volume: 1
Issue 17
Publisher: Frontiers Media  
Date Published: 2013-10-07
Sponsor: The work was supported by the NSF through a grant for the Institute for Theoretical Atomic, Molecular, and Optical Physics at Harvard University and Smithsonian Astrophysical Observatory
DOI: 10.3389/fphy.2013.00017
Open access: yes (repository)