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Synchronization of a self-sustained cold-atom oscillator

Year: 2018
Type: article
Abstract: Nonlinear oscillations and synchronization phenomena are ubiquitous in nature. We study the synchronization of self-oscillating magneto-optically trapped cold atoms to a weak external driving. The oscillations arise from a dynamical instability due the competition between the screened magneto-optical trapping force and the interatomic repulsion due to multiple scattering of light. A weak modulation of the trapping force allows the oscillations of the cloud to synchronize to the driving. The synchronization frequency range increases with the forcing amplitude. The corresponding Arnold tongue is experimentally measured and compared to theoretical predictions. Phase locking between the oscillator and drive is also observed.
DOI: 10.1103/physreva.97.043406
Institutions: Centre for Quantum Technologies, National University of Singapore, Centre National de la Recherche Scientifique, Nanyang Technological University, National Institute of Education, UMI MajuLab, Université Côte d'Azur, Institut de Physique de Nice
Language: English
Open Access status: bronze
Funders: National Research Foundation, National Research Foundation Singapore, Ministry of Education - Singapore, Ministry of Education, India, Centre National de la Recherche Scientifique, Université Nice Sophia Antipolis
OpenAlex ID: W2784708446
FWCI: 0.701
Cites: 18
Cited by: 12
Related to: 10