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Coherence of three-body Förster resonances in Rydberg atoms. / Ryabtsev, I. I.; Beterov, I. I.; Tretyakov, D. B. et al.
In: Physical Review A, Vol. 98, No. 5, 052703, 13.11.2018.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - Coherence of three-body Förster resonances in Rydberg atoms
AU - Ryabtsev, I. I.
AU - Beterov, I. I.
AU - Tretyakov, D. B.
AU - Yakshina, E. A.
AU - Entin, V. M.
AU - Cheinet, P.
AU - Pillet, P.
PY - 2018/11/13
Y1 - 2018/11/13
N2 - We have observed recently the Stark-tuned three-body Förster resonances 3×nP3/2(|M|)→nS1/2+(n+1)S1/2+nP3/2(|M∗|) at long-range interactions of a few cold Rb Rydberg atoms [D. B. Tretyakov, Phys. Rev. Lett. 119, 173402 (2017)PRLTAO0031-900710.1103/PhysRevLett.119.173402]. The three-body resonance appears at a different dc electric field with respect to the ordinary two-body resonance 2×nP3/2(|M|)→nS1/2+(n+1)S1/2 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.
AB - We have observed recently the Stark-tuned three-body Förster resonances 3×nP3/2(|M|)→nS1/2+(n+1)S1/2+nP3/2(|M∗|) at long-range interactions of a few cold Rb Rydberg atoms [D. B. Tretyakov, Phys. Rev. Lett. 119, 173402 (2017)PRLTAO0031-900710.1103/PhysRevLett.119.173402]. The three-body resonance appears at a different dc electric field with respect to the ordinary two-body resonance 2×nP3/2(|M|)→nS1/2+(n+1)S1/2 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.
KW - QUANTUM
KW - INFORMATION
UR - http://www.scopus.com/inward/record.url?scp=85057062954&partnerID=8YFLogxK
U2 - 10.1103/PhysRevA.98.052703
DO - 10.1103/PhysRevA.98.052703
M3 - Article
AN - SCOPUS:85057062954
VL - 98
JO - Physical Review A
JF - Physical Review A
SN - 2469-9926
IS - 5
M1 - 052703
ER -
ID: 17554032