ARC 3.0: An expanded Python toolbox for atomic physics calculations

Robertson, Elizabeth; Šibalić, Nikola; Potvliege, R. M.; Jones, Mike I

doi:10.1016/j.cpc.2020.107814

Cited by 60 publications

(36 citation statements)

References 50 publications

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“…For the D states, the discrepancy between experiment and theory is larger, with more scatter in the data, which we attribute partly to the very large sensitivity to electric fields of the F states, to which the D states can couple. For the target state lifetimes, an agreement between the measured and theoretically predicted values ( [49,50], which are based on the standard treatment of BBR, i.e., without cavity effects) is less good, with pronounced regions of shorter lifetimes in all three sets of states, especially at high principal quantum numbers.…”

Section: Resultsmentioning

confidence: 89%

“…Experimental results for state-ensemble and targetstate lifetimes of S, P and D states are shown in Fig. 2, along with numerical simulations based on lifetime calculations using the open-source software package ARC [49,50]. Those lifetimes are extracted by fitting a single exponential decay curve (with offset fixed at 0) to the experimental data.…”

Section: Resultsmentioning

confidence: 99%

“…3(a) we plot the enhancement curve obtained from the fit described above and in Fig. 3(b) the measured transition rates, normalized to the theoretical values (obtained using the software package ARC [49,50]), from nS and nP states to the neighbouring support states. In the case of nS states, we plot the measured rates as a function of the microwave frequency corresponding to the dominant transition (i.e., the one with the largest dipole moment) nS − nP .…”

Section: Discussionmentioning

confidence: 99%

See 2 more Smart Citations

Measurements of blackbody radiation-induced transition rates between high-lying S, P and D Rydberg levels

Archimi,

Ceccanti,

Distefano

et al. 2021

Preprint

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We report experimental measurements of the rates of blackbody radiation-induced transitions between high-lying (n > 60) S, P and D Rydberg levels of rubidium atoms in a magneto-optical trap using a hybrid field ionization and state-selective depumping technique [1,2]. Our results reveal significant deviations of the measured transition rates from theory for well-defined ranges of the principal quantum number. We assume that the most likely cause for those deviations is a modified blackbody spectrum inside the glass cell in which the magneto-optical trap is formed, and we test this assumption by installing electrodes to create an additional microwave cavity around the cell. From the results we conclude that it should be possible to use such external cavities to control and suppress the blackbody radiation-induced transitions.

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Section: Resultsmentioning

confidence: 89%

Section: Resultsmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

See 1 more Smart Citation

Measurements of blackbody radiation-induced transition rates between high-lying S, P and D Rydberg levels

Archimi,

Ceccanti,

Distefano

et al. 2021

Preprint

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show abstract

“…The eigenstates of H 0 are |n, S, L, J, m J , where L and S denote the quantum numbers of the electronic orbital angular momentum and the electronic spin, respectively. We obtain the corresponding eigenenergies E (n,S,L,J,m J ) for the unperturbed atomic Rydberg states of Rb using the ARC (Alkali.ne Rydberg Calculator) package [25]. For the wave functions for the states |n, S, L, J, m J , we use analytical expressions from [26].…”

Section: Energy (Ghzmentioning

confidence: 99%

Long-Range Atom–Ion Rydberg Molecule: A Novel Molecular Binding Mechanism

Deiß¹,

Haze²,

Denschlag³

2021

Atoms

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We present a novel binding mechanism where a neutral Rydberg atom and an atomic ion form a molecular bound state at a large internuclear distance. The binding mechanism is based on Stark shifts and level crossings that are induced in the Rydberg atom due to the electric field of the ion. At particular internuclear distances between the Rydberg atom and the ion, potential wells occur that can hold atom–ion molecular bound states. Apart from the binding mechanism, we describe important properties of the long-range atom–ion Rydberg molecule, such as its lifetime and decay paths, its vibrational and rotational structure, and its large dipole moment. Furthermore, we discuss methods of how to produce and detect it. The unusual properties of the long-range atom–ion Rydberg molecule give rise to interesting prospects for studies of wave packet dynamics in engineered potential energy landscapes.

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“…Error Stray interactions between two separate doublets should be negligible based on simulations of interaction energies at the minimum, six lattice site separation between two doublets [74]. However, to investigate if undesired interactions between doublets is nevertheless limiting the Bell state fidelity, we perform Bell state fidelity experiments in a 4×5 doublet array, where the spacing between doublets is increased from six lattice sites to eleven.…”

Section: Effectmentioning

confidence: 99%

Long-lived Bell states in an array of optical clock qubits

Schine,

Young,

Eckner

et al. 2021

Preprint

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ARC 3.0: An expanded Python toolbox for atomic physics calculations

Cited by 60 publications

References 50 publications

Measurements of blackbody radiation-induced transition rates between high-lying S, P and D Rydberg levels

Measurements of blackbody radiation-induced transition rates between high-lying S, P and D Rydberg levels

Long-Range Atom–Ion Rydberg Molecule: A Novel Molecular Binding Mechanism

Long-lived Bell states in an array of optical clock qubits

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