2003/08/30 by A. V. Avdeenkov, А. V. Avdeenkov, Daniele C. E. Bortolotti +3 · 1 citation
Physics and Astronomy · #Cold Atom Physics and Bose-Einstein Condensates #Quantum optics and atomic interactions #Quantum, superfluid, helium dynamics #physics.atom-ph
paper · pdf · doi:10.1103/physreva.69.012710
arxiv created 2003/08/30 · openalex publication_date 2004/01/22 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
We explore the character of a novel set of ``field-linked'' states that were predicted by Avdeenkov and Bohn [Phys. Rev. Lett. 90, 043006 (2003)]. These states exist at ultralow temperatures in the presence of an electrostatic field, and their properties are strongly dependent on the field's strength. We clarify the nature of these quasibound states by constructing their wave functions and determining their approximate quantum numbers. As the properties of field-linked states are strongly defined by anisotropic dipolar and Stark interactions, we construct adiabatic surfaces as functions of both the intermolecular distance and the angle that the intermolecular axis makes with the electric field. Within an adiabatic approximation we solve the two-dimensional Schr"odinger equation to find bound states, whose energies correlate well with resonance features found in fully converged multichannel scattering calculations.