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We present investigations of coherent population trapping (CPT) and Ramsey-CPT interrogations in laser-cooled 87Rb atoms towards the development of a cold atom-based clock.CPT and Ramsey-CPT interrogations are performed by turning off the magneto-optical trap (MOT) and allowing the atoms to freely expand. Ramsey-CPT interrogation is performed in the time-domain by delivering resonant Raman pulses to the atoms separated by a free evolution time which is determined by the atomic expansion time in our system. Our results show promise for improving the clock performance using this cold atom-based apparatus.
Gour S. Pati,Renu Tripathi,Gustavo Acosta, andMauricio Pulido
"Investigations of coherent population trapping and Ramsey interrogations towards cold atom-based clock development", Proc. SPIE PC13028, Quantum Information Science, Sensing, and Computation XVI, PC1302802 (10 June 2024); https://doi.org/10.1117/12.3013522
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Gour S. Pati, Renu Tripathi, Gustavo Acosta, Mauricio Pulido, "Investigations of coherent population trapping and Ramsey interrogations towards cold atom-based clock development," Proc. SPIE PC13028, Quantum Information Science, Sensing, and Computation XVI, PC1302802 (10 June 2024); https://doi.org/10.1117/12.3013522