Anisotropic interactions in electric field polarized ultracold Rydberg gases.
JAHANGIRI, Akbar; SHAFFER, James P.; GONÇALVES, Luis Felipe; MARCASSA, Luís Gustavo.
JAHANGIRI, Akbar; SHAFFER, James P.; GONÇALVES, Luis Felipe; MARCASSA, Luís Gustavo.
 Abstract: We calculate pair potential curves for interacting Rydberg atoms in a constant electric field and use them to determine the effective C 3 dipole-dipole and C 6 van der Waals coefficients. We compare the C 3 and C 6 with experiments where the angle of a polarizing electric field is varied with respect to the axis of a quasi-1-dimensional trap at ultracold temperatures. The dipoles produced via polarization of the atoms have an angular dependent dipole-dipole interaction. We focus on the interaction potential of two rubidium Rydberg atoms in $50{S}_{1/2}$ states in the blockade regime. For internuclear distances close to the blockade radius, R bl ? 4-6 µm, molecular calculations are in much better agreement with experimental results than those based on the properties of single atoms and independent calculations of C 3 and C 6 which were used to analyze the original experiment. We find that the calculated C 6 coefficient is within 8% of the experimental value while the C 3 coefficient is within 20% of the experimental value. | |
| Journal of Physics B |
| v. 53, n. 1, p. 014001-1-014001-8 - Ano: 2019 |
| Fator de Impacto: 2,115 |
| http://dx.doi.org/10.1088/1361-6455/ab4d31 |  @article={002979816,author = {JAHANGIRI, Akbar; SHAFFER, James P.; GONÇALVES, Luis Felipe; MARCASSA, Luís Gustavo.},title={Anisotropic interactions in electric field polarized ultracold Rydberg gases},journal={Journal of Physics B},note={v. 53, n. 1, p. 014001-1-014001-8},year={2019}} |