2020/08/31 by Tsafrir Armon, L. Frièdland, Lazar Friedland
Physics and Astronomy · #Atom (system on chip) #Atomic physics #Classical mechanics #Cold Atom Physics and Bose-Einstein Condensates #Dimensionless quantity #Excitation #Nonlinear system #Phase space #Physics #Quantum #Quantum mechanics #Quantum, superfluid, helium dynamics #Resonance (particle physics) #Rydberg atom #Rydberg formula #Strong Light-Matter Interactions #quant-ph
paper · pdf · doi:10.1103/physreva.102.052817
published as Phys. Rev. A 102, 052817 (2020)
openalex publication_date 2020/11/17 · arxiv created 2020/11/19 · arxiv updated 2020/11/23 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
The interplay between quantum-mechanical and classical evolutions in a chirped-driven Rydberg atom is discussed. It is shown that the system allows two continuing resonant excitation mechanisms, i.e., a successive two-level transitions (ladder climbing) and a continuing classicallike nonlinear phase locking (autoresonance). The persistent 1:1 and 2:1 resonances between the driving and the Keplerian frequencies are studied in detail and characterized in terms of two dimensionless parameters P1,2 representing the driving strength and the nonlinearity in the problem, respectively. The quantum-mechanical rotating wave and the classical single-resonance approximations are used to describe the regimes of efficient classical or quantum-mechanical excitation in this two-parameter space.