Dipole-dipole broadening of Rb<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:mi>n</mml:mi><mml:mi>s</mml:mi><mml:mo>−</mml:mo><mml:mi>n</mml:mi><mml:mi>p</mml:mi></mml:mrow></mml:math>microwave transitions

Park, Hyunwook; Tanner, Paul; Claessens, B.J.C.; Shuman, E. S.; Gallagher, T. F.

doi:10.1103/physreva.84.022704

Cited by 43 publications

(54 citation statements)

References 30 publications

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“…However, in a dense Rydberg gas, interparticle dipole-dipole interactions can shorten the coherence lifetime via cooperative or collision-induced dephasing [7,33,42,43]. This dephasing is more serious in Rydberg transitions with large electric dipole transition moments (µ ∼ 1000 Debye) and degrees of polarization (P ∼ 1), than typical rotational transitions (µ ∼ 1 Debye, P < 0.1).…”

Section: Buffer Gas Cooled Molecular Beam Sourcementioning

confidence: 99%

Direct detection of Rydberg–Rydberg millimeter-wave transitions in a buffer gas cooled molecular beam

Zhou

Grimes

Barnum

et al. 2015

Chemical Physics Letters

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Section: Buffer Gas Cooled Molecular Beam Sourcementioning

confidence: 99%

Direct detection of Rydberg–Rydberg millimeter-wave transitions in a buffer gas cooled molecular beam

Zhou

Grimes

Barnum

et al. 2015

Chemical Physics Letters

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“…We find that the trimer states have large dipole matrix elements with states in E 1 , and thus efficient excitation processes are possible via tailored microwave fields. From recent experiments [43,44] we estimate that the two-step excitation can be achieved in less than 1 µs. Since ultra-cold Rydberg atoms are effectively stationary on this timescale, the atoms remain in their initial configuration during the excitation process.…”

Section: Figs 3(c) and (D)]mentioning

confidence: 99%

“…Alternatively, one could utilize Kagomé optical lattices [41] or engineer the desired triangular structure via the controlled occupation of specific sites in, e.g., a triangular lattice via advanced experimental techniques [42]. Subsequently all three atoms are excited in a two-photon process to the ns Rydberg level [35,38,43,44]. These states experience only a weak van der Waals shift such that the dipole blockade effect is negligible.…”

Section: Figs 3(c) and (D)]mentioning

confidence: 99%

Three-Body Bound States in Dipole-Dipole Interacting Rydberg Atoms

Kiffner

Jaksch

2013

Phys. Rev. Lett.

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We show that the dipole-dipole interaction between three identical Rydberg atoms can give rise to bound trimer states. The microscopic origin of these states is fundamentally different from Efimov physics. Two stable trimer configurations exist where the atoms form the vertices of an equilateral triangle in a plane perpendicular to a static electric field. The triangle edge length typically exceeds R ≈ 2 µm, and each configuration is two-fold degenerate due to Kramers' degeneracy. The depth of the potential wells and the triangle edge length can be controlled by external parameters. We establish the Borromean nature of the trimer states, analyze the quantum dynamics in the potential wells and describe methods for their production and detection. PACS numbers: 34.20Cf,32.80.Ee,82.20.Rp Rydberg atoms [1] are ideal candidates for the investigation of few-body quantum phenomena for several reasons. First, their internal and external degrees of freedom can be accurately controlled and manipulated in stateof-the-art experiments. This gives rise to theoretically well-understood and tunable dipole-dipole (DD) interactions [2, 3] between ultra-cold Rydberg atoms. Second, the range of these DD interactions is extremely large -it typically extends to several microns. This feature allows the study of few-body quantum systems whose constituents can be prepared, manipulated and detected individually. Several quantum phenomena arising from strong interactions between two Rydberg atoms were investigated recently. Examples are given by the Rydberg blockade effect [4][5][6][7] and the realization of quantum gates and entanglement [8,9]. Rydberg atoms can form giant diatomic molecules via different binding mechanisms between their constituents [10][11][12][13][14][15]. Artificial gauge fields induced by the DD interaction [16,17] and acting on the relative motion of two Rydberg atoms were predicted in [18][19][20].In few body-physics, systems with three particles often show qualitatively different features as compared to two particles [21][22][23][24][25][26][27][28][29][30][31]. For example, it has been shown [21] that the dipole blockade can be broken by adding a third Rydberg atom. Furthermore, it has been predicted [22] that systems of more than two DD interacting atoms exhibit conical intersections [23,24], which are relevant for photo-chemical processes. A paradigm of few-body quantum physics is the Efimov effect [25][26][27][28]. Here a short-range resonant two-body interaction between identical bosons gives rise to a universal set of bound trimer states [29]. Recently, it was shown that the Efimov effect persists [30] even for a resonant long-range DD interaction.Here we show that the DD interaction between three distant Rydberg atoms with non-overlapping electron clouds can induce bound trimer states. These states arise from the rich internal level structure of the Rydberg atoms. A crucial point is the presence of several dipole transitions in each atom and the interplay between distance-dependent DD interactions and ...

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“…7a was taken under low-density conditions to minimize multiparticle interaction effects, which have been reported to strongly modify the width of the observed transitions [70][71][72][73][74]. In our experiments, we perform the excitation of the |42P 3/2 , m j = 3/2 at various densities of ground state atoms and, as shown in fig.…”

Section: Three-photon Spectroscopy Of 42p Rydberg Statesmentioning

confidence: 99%

Interaction Enhanced Imaging of Rydberg P states

Gavryusev

Ferreira-Cao

Kekić

et al. 2016

Eur. Phys. J. Spec. Top.

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The Interaction Enhanced Imaging technique allows to detect the spatial distribution of strongly interacting impurities embedded within a gas of background atoms used as a contrast medium [1]. Here we present a detailed study of this technique, applied to detect Rydberg P states. We experimentally realize fast and efficient three-photon excitation of P states, optimized according to the results of a theoretical effective two-level model. Few Rydberg P -state atoms, prepared in a small cloud with dimensions comparable to the blockade radius, are detected with a good sensitivity by averaging over 50 shots. The main aspects of the technique are described with a hard-sphere model, finding good agreement with experimental data. This work paves the way to a non-destructive optical detection of single Rydberg atoms with high spatial and temporal resolution.

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Dipole-dipole broadening of Rbns−npmicrowave transitions

Cited by 43 publications

References 30 publications

Direct detection of Rydberg–Rydberg millimeter-wave transitions in a buffer gas cooled molecular beam

Direct detection of Rydberg–Rydberg millimeter-wave transitions in a buffer gas cooled molecular beam

Three-Body Bound States in Dipole-Dipole Interacting Rydberg Atoms

Interaction Enhanced Imaging of Rydberg P states

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