Line shapes and time dynamics of the Förster resonances between two Rydberg atoms in a time-varying electric field

Yakshina, E. A.; Tretyakov, D. B.; Бетеров, И. И.; Энтин, В. М.; Andreeva, C.; Cinins, A.; Markovski, A. G.; Iftikhar, Zarnab; Экерс, А.; Ryabtsev, I. I.

doi:10.1103/physreva.94.043417

Cited by 18 publications

(14 citation statements)

References 48 publications

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“…In our earlier experiments [4,26], we used only atoms in the initial state 37P 3/2 (|M | = 1/2). Therefore, in the related theoretical analysis [25,26] we considered only the two-body resonance 3 of Fig. 1(a) and ignored the possibility of the three-body resonance 1.…”

Section: Analytical Model For Three Frozen Rydberg Atoms In a Trmentioning

confidence: 99%

“…Upon spatial averaging, this resonance obtains the cusped line shape, while the Rabi-like population oscillations are washed out, as discussed in Refs. [26][27][28].…”

Section: Weak Dipole-dipole Interactionmentioning

confidence: 99%

“…The resonance saturates and broadens when the interaction strength increases. The resonance width is determined by a combination of the Fourier width of the interaction pulse and of the threebody interaction strength Ω 0 , as it takes place for the two-body resonances analyzed in our paper [26].…”

Section: Strong Dipole-dipole Interactionmentioning

confidence: 99%

“…This requires to perform numerical simulations in order to account for the orientation of atomic dipoles and the Stark or Zeeman sublevels of real Rydberg states, as described in the next section. Numerical simulations can also provide spatial averaging over fluctuating atom positions [25,26], as this is the case in real experiments with optical-trap arrays of neutral atoms.…”

Section: Strong Dipole-dipole Interactionmentioning

confidence: 99%

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Coherence of three-body Förster resonances in Rydberg atoms

et al. 2018

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We have observed recently the Stark-tuned three-body Förster resonances 3 × nP 3/2 (|M |) → nS 1/2 + (n + 1)S 1/2 + nP 3/2 (|M * |) at long-range interactions of a few cold Rb Rydberg atoms [D. B. Tretyakov et al., Phys. Rev. Lett. 119, 173402 (2017)]. The three-body resonance appears at a different dc electric field with respect to the ordinary two-body resonance 2 × nP 3/2 (|M |) → nS 1/2 + (n + 1)S 1/2 and corresponds to a transition when the three interacting atoms change their states simultaneously (two atoms go to the S states, and the third atom remains in the P state but changes its moment projection), with the negligible contribution of the two-body resonance to the population transfer. It thus has a Borromean character and represents an effective three-body operator, which can be used to directly control the three-body interactions in quantum simulations and quantum gates implemented with Rydberg atoms. In this paper we theoretically investigate the coherence of such three-body resonances and we show that high-contrast Rabi-like population oscillations are possible for the localized Rydberg atoms in a certain spatial configuration. This paves the way to implementing three-qubit quantum gates and quantum simulations based on three-body Rydberg interactions.

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Section: Analytical Model For Three Frozen Rydberg Atoms In a Trmentioning

confidence: 99%

“…Upon spatial averaging, this resonance obtains the cusped line shape, while the Rabi-like population oscillations are washed out, as discussed in Refs. [26][27][28].…”

Section: Weak Dipole-dipole Interactionmentioning

confidence: 99%

Section: Strong Dipole-dipole Interactionmentioning

confidence: 99%

Section: Strong Dipole-dipole Interactionmentioning

confidence: 99%

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Coherence of three-body Förster resonances in Rydberg atoms

et al. 2018

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“…First, tournament selection is used to select a pair. Two non-overlapping random sets of pulses are selected and the best pulse is selected from each (lines [17][18][19][20][21][22][23][24][25][26][27]. A child pulse is created by randomly selecting a parent gene at each locus, a technique referred to as uniform crossover.…”

Section: Appendixmentioning

confidence: 99%

Perturbed field ionization for improved state selectivity

Gregoric

Bennett

Gualtieri

et al. 2020

J. Phys. B: At. Mol. Opt. Phys.

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Selective field ionization is used to determine the state or distribution of states to which a Rydberg atom is excited. By evolving a small perturbation to the ramped electric field using a genetic algorithm, the shape of the time-resolved ionization signal can be controlled. This allows for separation of signals from pairs of states that would be indistinguishable with unperturbed selective field ionization. Measurements and calculations are presented that demonstrate this technique and shed light on how the perturbation directs the pathway of the electron to ionization. Pseudocode for the genetic algorithm is provided. Using the improved resolution afforded by this technique, quantitative measurements of the 36p 3/2 + 36p 3/2 → 36s 1/2 + 37s 1/2 dipole-dipole interaction are made.

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Trapping, detection and manipulation of single Rb atoms in an optical dipole trap using a long-focus objective lens

Бетеров

Yakshina

Tretyakov

et al. 2021

J. Phys.: Conf. Ser.

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Single alkali-metal atoms in arrays of optical dipole traps represent a quantum register that can be used for quantum computation and simulation based on short-term Rydberg excitations, which switch the interactions between qubits. To load single atoms into optical dipole traps and then detect them by resonance fluorescence, lenses with a large numerical aperture (NA > 0.5) inside a vacuum chamber and expensive EMCCD cameras are commonly used. We present our recent experimental results on demonstrating the trapping of single 87Rb atoms using a long-focus objective lens with a low numerical aperture (NA = 0.172) placed outside the vacuum chamber, and detecting single atoms with a low-cost sCMOS camera. We also present our current results on implementing a single-qubit gate based on optical pumping and subsequent microwave transition between two hyperfine sublevels of a single 87Rb atom with fidelity near 95%.

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Line shapes and time dynamics of the Förster resonances between two Rydberg atoms in a time-varying electric field

Cited by 18 publications

References 48 publications

Coherence of three-body Förster resonances in Rydberg atoms

Coherence of three-body Förster resonances in Rydberg atoms

Perturbed field ionization for improved state selectivity

Trapping, detection and manipulation of single Rb atoms in an optical dipole trap using a long-focus objective lens

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