The frequency-tunable light,which was produced by using YAG laser to pump the dye rhodamine 590/610,was used to measure the ions number in ionization of the benzene molecules Rydberg state 5Rg|10 as a function of the ...The frequency-tunable light,which was produced by using YAG laser to pump the dye rhodamine 590/610,was used to measure the ions number in ionization of the benzene molecules Rydberg state 5Rg|10 as a function of the light intensity.Fitting the measured data by using the deduced equation from the method of spatial integration,the ionization cross section of single photon of molecule benzene 5Rg|10 was obtained to be 2.1×10-19cm2 approximately.展开更多
We propose a Rydberg molecule dressing scheme to create strong and long-ranged interactions at selective distances. This is achieved through laser coupling ground-state atoms off-resonantly to an attractive molecular ...We propose a Rydberg molecule dressing scheme to create strong and long-ranged interactions at selective distances. This is achieved through laser coupling ground-state atoms off-resonantly to an attractive molecular curve of two interacting Rydberg atoms. Although dephasing due to Rydberg state decay occurs in all dressing schemes, an advantage of the molecule dressing is that a large ratio of dressed interaction to dephasing rate can be realized at large atomic separations. In an optical lattice or tweezer setting, we show that the strong interaction permits the fast generation of spin squeezing for several tens of dressed atoms.The proposed setting offers a new route to study complex many-body dynamics and to realize quantum information processing with non-convex long-range interactions.展开更多
We present our theoretical study to identify two new amplified spontaneous emissions(241.3 and 268.7nm)in the NF and FO molecules.We also present our theoretical calculations for electronic structures of molecular Ryd...We present our theoretical study to identify two new amplified spontaneous emissions(241.3 and 268.7nm)in the NF and FO molecules.We also present our theoretical calculations for electronic structures of molecular Rydberg excited states for the NF and FO molecules.展开更多
文摘The frequency-tunable light,which was produced by using YAG laser to pump the dye rhodamine 590/610,was used to measure the ions number in ionization of the benzene molecules Rydberg state 5Rg|10 as a function of the light intensity.Fitting the measured data by using the deduced equation from the method of spatial integration,the ionization cross section of single photon of molecule benzene 5Rg|10 was obtained to be 2.1×10-19cm2 approximately.
基金support from the Baden-Württemberg Foundation(Grant No.BWST ISF2019-23)(“Internationale Spitzenforschung”)the Deutsche Forschungsgemeinschaft through SPP 1929 GiRyd(Grant No.428276754)+2 种基金support from the EPSRC(Grant Nos.EP/R04340X/1,and EP/W015641/1)the Royal Society through the International Exchanges Cost Share Award(Grant No.IEC181078)support from the National Natural Science Foundation of China(Grant Nos.11774058,11874114,and 12174058)。
文摘We propose a Rydberg molecule dressing scheme to create strong and long-ranged interactions at selective distances. This is achieved through laser coupling ground-state atoms off-resonantly to an attractive molecular curve of two interacting Rydberg atoms. Although dephasing due to Rydberg state decay occurs in all dressing schemes, an advantage of the molecule dressing is that a large ratio of dressed interaction to dephasing rate can be realized at large atomic separations. In an optical lattice or tweezer setting, we show that the strong interaction permits the fast generation of spin squeezing for several tens of dressed atoms.The proposed setting offers a new route to study complex many-body dynamics and to realize quantum information processing with non-convex long-range interactions.
基金Supported in part by the National Natural Science Foundation of China,Academia Sinica and Chinese Research Association for Atomic and Molecular Data.
文摘We present our theoretical study to identify two new amplified spontaneous emissions(241.3 and 268.7nm)in the NF and FO molecules.We also present our theoretical calculations for electronic structures of molecular Rydberg excited states for the NF and FO molecules.
