Interaction of two Rydberg atoms in the vicinity of an optical nanofibre
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Interaction of two Rydberg atoms in the vicinity of an optical nanofibre. / Stourm, E.; Lepers, M.; Robert, J.; Chormaic, S. Nic; Molmer, K.; Brion, E.
In: New Journal of Physics, Vol. 25, No. 2, 023022, 01.02.2023.Research output: Contribution to journal › Journal article › Research › peer-review
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TY - JOUR
T1 - Interaction of two Rydberg atoms in the vicinity of an optical nanofibre
AU - Stourm, E.
AU - Lepers, M.
AU - Robert, J.
AU - Chormaic, S. Nic
AU - Molmer, K.
AU - Brion, E.
PY - 2023/2/1
Y1 - 2023/2/1
N2 - We consider two rubidium atoms, prepared in the same S or P Rydberg states, near an optical nanofibre, and we determine their van der Waals interaction potential as a function of their separation along the nanofibre axis, their distance to the nanofibre axis, and their relative azimuthal angle. We compare results obtained through direct diagonalisation of the Hamiltonian (including quadrupolar interaction terms) with second-order perturbation calculations, and we identify which couplings mainly contribute to the potential in the presence of the nanofibre and in free-space. We relate the appearance of new allowed couplings to the broken rotation symmetry around the interatomic axis due to the presence of the fibre. These couplings induce novel features and cause a reshaping of the interaction anisotropy and formation of an interaction potential well for P states near the nanofibre. Our work constitutes an important step in the assessment of Rydberg atom-nanofibre quantum interfaces and devices.
AB - We consider two rubidium atoms, prepared in the same S or P Rydberg states, near an optical nanofibre, and we determine their van der Waals interaction potential as a function of their separation along the nanofibre axis, their distance to the nanofibre axis, and their relative azimuthal angle. We compare results obtained through direct diagonalisation of the Hamiltonian (including quadrupolar interaction terms) with second-order perturbation calculations, and we identify which couplings mainly contribute to the potential in the presence of the nanofibre and in free-space. We relate the appearance of new allowed couplings to the broken rotation symmetry around the interatomic axis due to the presence of the fibre. These couplings induce novel features and cause a reshaping of the interaction anisotropy and formation of an interaction potential well for P states near the nanofibre. Our work constitutes an important step in the assessment of Rydberg atom-nanofibre quantum interfaces and devices.
KW - optical nanofibre
KW - Rydberg atoms
KW - van der Waals interaction
U2 - 10.1088/1367-2630/acb83f
DO - 10.1088/1367-2630/acb83f
M3 - Journal article
VL - 25
JO - New Journal of Physics
JF - New Journal of Physics
SN - 1367-2630
IS - 2
M1 - 023022
ER -
ID: 342564017