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Threading an atom with light

Rodrigo G. Cortiñas*

  • Department of Applied Physics and Physics, Yale University, New Haven, Connecticut 06520, USA and Yale Quantum Institute, Yale University, New Haven, Connecticut 06520, USA

  • *rodrigo.cortinas@yale.edu

Phys. Rev. A 109, L011102 – Published 16 January, 2024

DOI: https://doi.org/10.1103/PhysRevA.109.L011102

Abstract

We propose a ponderomotive trapping mechanism for circular Rydberg atoms that consists in threading the Rydberg orbital with a tightly focused Gaussian laser beam. The trap exhibits remarkable properties: it can be made effectively linear, extremely nonlinear, or have the same trapping frequency, depth, or nonlinearity for distant Rydberg states. The mechanism is capable of efficiently trapping highly excited Rydberg states with a single active electron, as well as ground-state atoms using a single beam. Alternatively, the Rydberg atom can be efficiently trapped by the same beam used to excite it, relaxing optical constraints in well-shielded environments.

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