Article
Observation of stochastic resonance in directed propagation of cold atoms
Author/s | Staron, Alexander
Jiang, Kefeng Scoggins, Casey Wingert, Daniel Cubero Gómez, David ![]() ![]() ![]() ![]() ![]() ![]() ![]() Bali, Samir |
Department | Universidad de Sevilla. Departamento de Física Aplicada I |
Publication Date | 2022-12 |
Deposit Date | 2024-06-24 |
Abstract | Randomly diffusing atoms confined in a dissipative optical lattice are illuminated by a weak probe of light. The probe transmission spectrum reveals directed atomic propagation that occurs perpendicular to the direction ... Randomly diffusing atoms confined in a dissipative optical lattice are illuminated by a weak probe of light. The probe transmission spectrum reveals directed atomic propagation that occurs perpendicular to the direction of probe beam propagation. Resonant enhancement of this directed propagation is observed as we vary the random photon scattering rate. We experimentally characterize this stochastic resonance as a function of probe intensity and lattice well depth. A simple model reveals how the probe-excited atomic density waves and optical pumping rates conspire to create directed atomic propagation within a randomly diffusing sample. |
Funding agencies | Ministerio de Ciencia e Innovación (MICIN). España |
Project ID. | PID2019-105316GB-I00
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PRR_cubero_2022_observation.pdf | 1.300Mb | ![]() | View/ | |