Rotation of cold molecular ions inside a Bose-Einstein condensate

article Rotation of cold molecular ions inside a Bose-Einstein condensate published yes Bikashkali Midya author 456187FC-F248-11E8-B48F-1D18A9856A87 Michał Tomza author Richard Schmidt author Mikhail Lemeshko author 37CB05FA-F248-11E8-B48F-1D18A9856A870000-0002-6990-7802 MiLe department International IST Postdoc Fellowship Programme project We use recently developed angulon theory [R. Schmidt and M. Lemeshko, Phys. Rev. Lett. 114, 203001 (2015)PRLTAO0031-900710.1103/PhysRevLett.114.203001] to study the rotational spectrum of a cyanide molecular anion immersed into Bose-Einstein condensates of rubidium and strontium. Based on ab initio potential energy surfaces, we provide a detailed study of the rotational Lamb shift and many-body-induced fine structure which arise due to dressing of molecular rotation by a field of phonon excitations. We demonstrate that the magnitude of these effects is large enough in order to be observed in modern experiments on cold molecular ions. Furthermore, we introduce a novel method to construct pseudopotentials starting from the ab initio potential energy surfaces, which provides a means to obtain effective coupling constants for low-energy polaron models. American Physical Society2016 eng Physical Review A - Atomic, Molecular, and Optical Physics 1607.06092 00038561850000110.1103/PhysRevA.94.041601 944 Midya, B., Tomza, M., Schmidt, R., & Lemeshko, M. (2016). Rotation of cold molecular ions inside a Bose-Einstein condensate. Physical Review A - Atomic, Molecular, and Optical Physics. American Physical Society. <a href="https://doi.org/10.1103/PhysRevA.94.041601">https://doi.org/10.1103/PhysRevA.94.041601</a> Midya, Bikashkali, et al. “Rotation of Cold Molecular Ions inside a Bose-Einstein Condensate.” Physical Review A - Atomic, Molecular, and Optical Physics, vol. 94, no. 4, 041601, American Physical Society, 2016, doi:<a href="https://doi.org/10.1103/PhysRevA.94.041601">10.1103/PhysRevA.94.041601</a>. Midya, Bikashkali, Michał Tomza, Richard Schmidt, and Mikhail Lemeshko. “Rotation of Cold Molecular Ions inside a Bose-Einstein Condensate.” Physical Review A - Atomic, Molecular, and Optical Physics. American Physical Society, 2016. <a href="https://doi.org/10.1103/PhysRevA.94.041601">https://doi.org/10.1103/PhysRevA.94.041601</a>. B. Midya, M. Tomza, R. Schmidt, and M. Lemeshko, “Rotation of cold molecular ions inside a Bose-Einstein condensate,” Physical Review A - Atomic, Molecular, and Optical Physics, vol. 94, no. 4. American Physical Society, 2016. Midya B, Tomza M, Schmidt R, Lemeshko M. Rotation of cold molecular ions inside a Bose-Einstein condensate. Physical Review A - Atomic, Molecular, and Optical Physics. 2016;94(4). doi:<a href="https://doi.org/10.1103/PhysRevA.94.041601">10.1103/PhysRevA.94.041601</a> Midya B, Tomza M, Schmidt R, Lemeshko M. 2016. Rotation of cold molecular ions inside a Bose-Einstein condensate. Physical Review A - Atomic, Molecular, and Optical Physics. 94(4), 041601. B. Midya, M. Tomza, R. Schmidt, M. Lemeshko, Physical Review A - Atomic, Molecular, and Optical Physics 94 (2016). 12862018-12-11T11:51:09Z2025-09-22T08:33:08Z