Coherent population trapping by dark state formation in a carbon nanotube quantum dot
Sign Up to like & getrecommendations! Published in 2019 at "Nature Communications"
DOI: 10.1038/s41467-018-08112-x
Abstract: Illumination of atoms by resonant lasers can pump electrons into a coherent superposition of hyperfine levels which can no longer absorb the light. Such superposition is known as a dark state, because fluorescent light emission… read more here.
Keywords: population trapping; coherent population; dark state; carbon nanotube ... See more keywords
Generalised Ramsey methods for suppressing light shifts in atomic clocks based on the coherent population trapping effect
Sign Up to like & getrecommendations! Published in 2021 at "Quantum Electronics"
DOI: 10.1070/qel17582
Abstract: We study the possibility of suppressing light shifts in Ramsey spectroscopy of coherent population trapping (CPT) using generalised autobalanced Ramsey spectroscopy (GABRS) and combined error signal in Ramsey spectroscopy (CESRS). We consider CPT resonances excited… read more here.
Keywords: suppressing light; spectroscopy; population trapping; light shifts ... See more keywords
Comparison of field shifts in an atomic clock based on the effect of coherent population trapping in 87Rb atoms under modulation of laser pump current at frequencies of 3.4 and 6.8 GHz
Sign Up to like & getrecommendations! Published in 2022 at "Quantum Electronics"
DOI: 10.1070/qel18023
Abstract: Experimental parameters of the resonance of coherent population trapping (CTP) on D1 line in 87Rb and light shifts are compared under modulation of the laser pump current at frequencies of 3.4 and 6.8 GHz. Reproducibility… read more here.
Keywords: laser pump; population trapping; clock; coherent population ... See more keywords
Engineering Knill-Laflamme-Milburn Entanglement via dissipation and Coherent Population Trapping in Rydberg Atoms
Sign Up to like & getrecommendations! Published in 2023 at "Chinese Physics Letters"
DOI: 10.1088/0256-307x/40/6/060302
Abstract: A scheme for dissipatively preparing bipartite Knill-Lafamme-Milburn (KLM) entangled state in the neutral atom system, where the spontaneous emission of excited Rydberg states, combined with the coherent population trapping, is actively exploited to engineer a… read more here.
Keywords: rydberg; coherent population; state; rydberg atoms ... See more keywords
Experimental Demonstration of Three-Photon Coherent Population Trapping in an Ion Cloud
Sign Up to like & getrecommendations! Published in 2019 at "Physical Review Applied"
DOI: 10.1103/physrevapplied.12.034035
Abstract: A novel protocol of interrogation based on coherent population trapping in an N-level scheme atomic system leads to dark resonances involving three different photons. An ensemble of several hundreds of radio-frequency trapped Ca+ ions is… read more here.
Keywords: experimental demonstration; population trapping; coherent population; demonstration three ... See more keywords
High-Performance Coherent Population Trapping Clock with Polarization Modulation
Sign Up to like & getrecommendations! Published in 2017 at "Physical review applied"
DOI: 10.1103/physrevapplied.7.014018
Abstract: We demonstrate a vapor cell atomic clock prototype based on continuous-wave (CW) interrogation and double-modulation coherent population trapping (DM-CPT) technique. The DM-CPT technique uses a synchronous modulation of polarization and relative phase of a bi-chromatic… read more here.
Keywords: modulation; population trapping; coherent population; clock ... See more keywords