activity
20212026
most citedObservation of a narrow inner-shell orbital transition in atomic erbium at 1299 nm

21 citations · 37 across the 6 of their papers we have counts for

collaborators

6 papers

physics.atom-ph2026

Revisiting the luminescence properties of Pr3+: YAG within the framework of an extended approach of Judd-Ofelt theory

Maxence Lepers, G. Hovhannesyan, Y. Guyot +2

We show in this article the improvements which can be obtained in the description of the luminescence properties of Pr3+ doped materials by using an extension of the Judd-Ofelt the…

cond-mat.quant-gas2026

Two-photon-assisted collisions in ultracold gases of polar molecules II : Optical shielding of ultracold polar molecular collisions

Gohar Hovhannesyan, Charbel Karam, Romain Vexiau +4

We theoretically investigate the collisions between ultracold polar molecules in the presence of two lasers ensuring a Raman resonant transition on individual molecules to suppress…

cond-mat.quant-gas2025

Two-photon-assisted collisions in ultracold gases of polar molecules

Charbel Karam, Gohar Hovhannesyan, Romain Vexiau +3

We present a theoretical formalism to treat the ultracold dynamics of a pair of colliding polar molecules submitted to two laser fields. We express the dressed Hamiltonian includin…

physics.atom-ph2022★ 2 cited

Improving the spectroscopic knowledge of neutral Neodymium

Gohar Hovhannesyan, Maxence Lepers

Laser cooling and trapping of lanthanides has opened the possibility to carry out new experiments with ultracold dipolar gases, for example for quantum simulation of solid state ph…

cond-mat.mtrl-sci2021★ 14 cited

Transition intensities of trivalent lanthanide ions in solids: Revisiting the Judd-Ofelt theory

Gohar Hovhannesyan, Vincent Boudon, Maxence Lepers

We present a modified version of the Judd-Ofelt theory, which describes the intensities of f-f transitions by trivalent lanthanide ions (Ln) in solids. In our model, the pro…

physics.atom-ph2021★ 21 cited

Observation of a narrow inner-shell orbital transition in atomic erbium at 1299 nm

A. Patscheider, B. Yang, G. Natale +6

We report on the observation and coherent excitation of atoms on the narrow inner-shell orbital transition, connecting the erbium ground state $[\mathrm{Xe}] 4f^{12} (^3\text{H}_6)…