Long-range Rydberg–Rydberg interactions in calcium, strontium and ytterbium

Vaillant, Christophe L.; Jones, Mike I; Potvliege, R. M.

doi:10.1088/0953-4075/45/13/135004

Cited by 78 publications

(144 citation statements)

References 49 publications

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“…2(a)] in the singlet sector displays isolated low-L (L = 0,1,2, and 3) states at zero dc field. The calculated quantum defects μ L agree well with the measured values [26,27]. The small discrepancies in the D state peak positions as compared to experimental measurements are partly due to n dependences in the quantum defect (n 50 for the theory and n 274 for the experiment) and partly due to the inaccuracy of the model potential [20].…”

Section: A Quantum Descriptionsupporting

confidence: 73%

Characterizing high-nquasi-one-dimensional strontium Rydberg atoms

et al. 2014

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The production of high-n, n ∼ 300, quasi-one-dimensional (quasi-1D) strontium Rydberg atoms through two-photon excitation of selected extreme Stark states in the presence of a weak dc field is examined using a crossed laser-atom beam geometry. The dipolar polarization of the electron wave function in the product states is probed using two independent techniques. The experimental data are analyzed with a classical trajectory Monte Carlo simulation employing initial ensembles that are obtained with the aid of quantum calculations based on a two-active-electron model. Comparisons between theory and experiment highlight different characteristics of the product quasi-1D states, in particular, their large permanent dipole moments, ∼1.0 to 1.2n 2 ea 0 , where e is the electronic charge and a 0 is the Bohr radius. Such states can be engineered using pulsed electric fields to create a wide variety of target states.

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Section: A Quantum Descriptionsupporting

confidence: 73%

Characterizing high-nquasi-one-dimensional strontium Rydberg atoms

et al. 2014

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“…2. Large contributions from singlet-triplet pair states are found in both series around n = 16 where the effect of the 4d6s 1 D 2 and 3 D 2 perturbers is at its maximum [32,44]. The overall C 6 coefficients for states in this region differ significantly from predictions based on single-channel quantum defect calculations for Rydberg states below n = 30 [46].…”

Section: Multichannel Dipole-dipole Interactionsmentioning

confidence: 88%

“…Using these state vectors, the long-range interactions can be calculated either perturbatively or nonperturbatively (by diagonalizing an effective Hamiltonian matrix in a basis of pair states [44]). The values of the coefficientsĀ k , as well as numerical dipole matrix elements, are provided in [31].…”

Section: Multichannel Dipole-dipole Interactionsmentioning

confidence: 99%

“…The dipole-dipole interaction Hamiltonian for two atoms with the internuclear axis aligned with the z axis is given by [44,45] …”

Section: Multichannel Dipole-dipole Interactionsmentioning

confidence: 99%

“…Treating the dipole-dipole interaction using perturbation theory the first-order expression vanishes for two atoms in the same state. Second-order perturbation theory results in a C 6 R −6 interaction, with [44] …”

Section: Multichannel Dipole-dipole Interactionsmentioning

confidence: 99%

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Intercombination effects in resonant energy transfer

2015

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. (2015) 'Intercombination e ects in resonant energy transfer. ', Physical review A., 92 (4). 042705.Further information on publisher's website:http://dx.doi.org/10.1103/PhysRevA.92.042705Publisher's copyright statement:Reprinted with permission from the American Physical Society: Physical Review A 92, 042705 c (2015) by the American Physical Society. Readers may view, browse, and/or download material for temporary copying purposes only, provided these uses are for noncommercial personal purposes. Except as provided by law, this material may not be further reproduced, distributed, transmitted, modi ed, adapted, performed, displayed, published, or sold in whole or part, without prior written permission from the American Physical Society.Additional information: Use policyThe full-text may be used and/or reproduced, and given to third parties in any format or medium, without prior permission or charge, for personal research or study, educational, or not-for-pro t purposes provided that:• a full bibliographic reference is made to the original source • a link is made to the metadata record in DRO • the full-text is not changed in any way The full-text must not be sold in any format or medium without the formal permission of the copyright holders.Please consult the full DRO policy for further details. We investigate the effect of intercombination transitions in excitation hopping processes such as those found in Förster resonance energy transfer. Taking strontium Rydberg states as our model system, the breakdown of LS coupling leads to weakly allowed transitions between Rydberg states of different spin quantum number. We show that the long-range interactions between two Rydberg atoms can be affected by these weakly allowed spin transitions, and the effect is greatest when there is a near degeneracy between the initial state and a state with a different spin quantum number. We also consider a case of four atoms in a spin chain and show that a spin impurity can resonantly hop along the chain. By engineering the many-body energy levels of the spin chain, the breakdown of LS coupling due to interelectronic effects in individual atoms can be mapped onto a spatial separation of the total spin and the total orbital angular momentum along the spin chain.

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Semiconductor Rydberg Physics

Aßmann

Bayer

2020

Adv Quantum Tech

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This topical review addresses how semiconductor systems may reveal scalable properties similar to those known from Rydberg atoms and in which ways they may be utilized for precision sensing and to realize huge long‐range interactions in semiconductor systems. Due to the interdisciplinary nature of the field, it has a twofold purpose: First, it may serve as an introduction to Rydberg physics for semiconductor physicists unfamiliar with the topic. Second, it may also serve as an overview of the specific opportunities and challenges arising in semiconductor physics for researchers who are familiar with Rydberg physics of cold atom gases, but new to the field of semiconductor physics. The review starts with an introduction on the general properties of excitons in semiconductors. Then, the material system Cu2O, which is the best developed platform for semiconductor Rydberg physics at the moment, is discussed in detail.

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Long-range Rydberg–Rydberg interactions in calcium, strontium and ytterbium

Cited by 78 publications

References 49 publications

Characterizing high-nquasi-one-dimensional strontium Rydberg atoms

Characterizing high-nquasi-one-dimensional strontium Rydberg atoms

Intercombination effects in resonant energy transfer

Semiconductor Rydberg Physics

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