2016/06/30 by I. I. Beterov, M. Saffman, E. A. Yakshina +6 · 1 citation
Computer Science · Physics and Astronomy · #Adiabatic process #Atomic physics #Cold Atom Physics and Bose-Einstein Condensates #Excitation #Ionization #Physics #Population #Quantum #Quantum Information and Cryptography #Quantum mechanics #Quantum optics and atomic interactions #Qubit #Resonance (particle physics) #Rydberg atom #Rydberg formula #Spectral line #Stark effect #quant-ph
paper · pdf · doi:10.1103/physreva.94.062307
published as Phys. Rev. A 94, 062307 (2016) · 10 pages, 7 figures. Version 2 revised according to the referees' comments. Fig.1 replaced in Version 3. Accepted to PRA
arxiv created 2016/12/02 · openalex publication_date 2016/12/06 · arxiv updated 2016/12/14 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
We propose schemes of controlled-Z and controlled-not gates with ultracold neutral atoms based on deterministic phase accumulation during double adiabatic passage of the Stark-tuned F"orster resonance of Rydberg states. The effect of deterministic phase accumulation during double adiabatic passage in a two-level quantum system has been analyzed in detail. Adiabatic rapid passage using nonlinearly chirped pulses with rectangle intensity profile has been discussed. Nonlinear time dependence of the energy detuning from the F"orster resonance is used to achieve a high fidelity of population transfer between Rydberg states. Fidelity of two-qubit gates has been studied with an example of the 90S+96S\ensuremath→90P+95P Stark-tuned F"orster resonance in Cs Rydberg atoms.