Tīmeklis2024. gada 28. jūn. · We report Raman sideband cooling of a single sodium atom to its three-dimensional motional ground state in an optical tweezer. Despite a large Lamb-Dicke parameter, high initial temperature, and large differential light shifts between the excited state and the ground state, we achieve a ground-state population of 93.5 … TīmeklisThe resonance fluorescence spectrum of a laser-cooled trapped ion is theoretically studied in the Lamb-Dicke limit. Angular averaged spectrum around the elastic peak and the motional sidebands is calculated. The widths of the sidebands are shown to be given by the cooling rate of the ion in the trap. In the limit when the trapping force is …
Rotational spectroscopy of cold and trapped molecular ions in the …
Tīmeklis2024. gada 15. aug. · We report continuous Raman sideband cooling (CRSC) of a long ion chain to the motional ground state beyond the Lamb-Dicke (LD) regime. TīmeklisIn this report, we realize a Dicke-Ising model with an antiferromagnetic nearest-neighbor spin-spin interaction in circuit QED with a superconducting qubit array. homes for sale near ravenwood high school tn
Proton–electron mass ratio by high-resolution optical ... - Nature
Tīmeklis2014. gada 17. jūn. · Since the atomic absorption cross-section of a resonant light with wavelength λ is given by σ0 =3 λ2 /2 π, a small beam radius is preferable for efficient coupling 10 between atoms and photons. In... TīmeklisIn this paper we consider the laser cooling of a trapped particle when the discrete nature of the quantum levels must be taken into account. We particularize the equations to … Tīmeklis2024. gada 24. jūn. · Lamb-Dicke regime is the case of small η n + 0.5. We can expand the exponent: n ′ exp ( − i η ( a † + a)) n = δ n ′, n ( 1 − η 2 ( n + 1 / 2)) − i η ( n ′ δ n ′, n + 1 + n δ n ′, n − 1) We see that Δ n = n ′ − n ≠ 0 is very unlikely, and … homes for sale near rathdrum idaho