Many-body physics with alkaline-earth Rydberg lattices

Mukherjee, Rama; Millen, James; Nath, R.; Jones, Mike I; Pohl, Thomas

doi:10.1088/0953-4075/44/18/184010

Cited by 106 publications

(123 citation statements)

References 65 publications

(116 reference statements)

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“…The presence of a second valence electron leaves an optically active core after excitation of the Rydberg electron that can be used to further manipulate the Rydberg atom, such as through optical trapping [26] or for optical imaging [27]. The second electron also admits the possibility of creating doubly excited planetary atoms [28,29] or autoionizing states [30] that can serve as probes of the evolution of the Rydberg electron [31].…”

Section: Introductionmentioning

confidence: 99%

Imaging the evolution of an ultracold strontium Rydberg gas

et al. 2013

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Clouds of ultracold strontium 5s48s 1 S 0 or 5s47d 1 D 2 Rydberg atoms are created by two-photon excitation of laser-cooled 5s 2 1 S 0 atoms. The spontaneous evolution of the cloud of low orbital angular momentum (low-) Rydberg states towards an ultracold neutral plasma is observed by imaging resonant light scattered from core ions, a technique that provides both spatial and temporal resolution. Evolution is observed to be faster for the S states, which display isotropic attractive interactions, than for the D states, which exhibit anisotropic, principally repulsive interactions. Immersion of the atoms in a dilute ultracold neutral plasma speeds up the evolution and allows the number of Rydberg atoms initially created to be determined.

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Section: Introductionmentioning

confidence: 99%

Imaging the evolution of an ultracold strontium Rydberg gas

et al. 2013

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“…The principal transition of the Rydberg core is typically in the visible range and can be used to drive auto-ionizing transitions [12], to image Rydberg atoms or ions [13], and to provide oscillator strength for magic-wavelength optical trapping of Rydberg atoms [14]. Doubly excited states serve as strong perturbers of Rydberg states, creating a much richer assortment of electronic configurations than found in alkali-metal atoms.…”

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confidence: 99%

Ultra-long-range Rydberg molecules in a divalent atomic system

et al. 2015

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“…The exp(i α t) factors are then easily determined, and the final state vectors are projected back into the original basis. To calculate the probabilities of the spin chain to be in a state i, we use the square magnitude of the coefficients: Figure 4 shows the evolution of the probability of each atom being in a singlet state for a lattice spacing of 2 μm (a spacing that can be engineered using two crossed 1550-nm laser beams [29,54]). The spin can be seen to propagate along the chain of atoms and back, although there is additional state transfer due to competing second-order interactions.…”

Section: Spin Chain Of Strontium Rydberg Atomsmentioning

confidence: 99%

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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Many-body physics with alkaline-earth Rydberg lattices

Cited by 106 publications

References 65 publications

Imaging the evolution of an ultracold strontium Rydberg gas

Imaging the evolution of an ultracold strontium Rydberg gas

Ultra-long-range Rydberg molecules in a divalent atomic system

Intercombination effects in resonant energy transfer

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