Article
Optics
Denis B. Tretyakov, Vasily M. Entin, Ilya I. Beterov, Elena A. Yakshina, Yury Ya. Pechersky, Veniamin G. Gol'dort, Igor I. Ryabtsev
Summary: We present experimental results on the two-photon laser excitation of Rb atoms to Rydberg states, using a homemade 480 nm laser. The resonance line shapes were in good agreement with theory, and we also observed the Autler-Townes splitting of the EIT resonance.
Article
Physics, Multidisciplinary
Yang-Yang Liu, Zhuo Fu, Peng Xu, Xiao-Dong He, Jin Wang, Ming-Sheng Zhan
Summary: An alternative method for spectral filtering and frequency stabilization of 780-nm and 960-nm lasers using a high-finesse length-tunable cavity (HFLTC) is proposed and demonstrated. The obtained lasers show ultra-low phase noise and narrow linewidth, which are essential for high precision atomic experiments.
Article
Materials Science, Multidisciplinary
Wenlin Nie, Shuming Wen, Yongjun Xian, Yirong Li, Guang Han, Yaxiong Jiang
Summary: The study investigated the leaching of Rb from a low-grade aluminosilicate mineral in the H2SO4 CaF2 system at low temperature. The results showed that parameters such as H2SO4 concentration, CaF2 dosage, and temperature affected the leaching process. Residue characterization and kinetic analysis indicated that the leaching rate was controlled by chemical reaction and diffusion of the leaching agent through the product layer.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2021)
Article
Engineering, Electrical & Electronic
I. L. Glukhov, A. A. Kamenski, V. D. Ovsiannikov
Summary: We examine the possibilities of refining an asymptotic description and quantitative calculations of the effects induced by thermal blackbody radiation on the Rydberg states of atoms. Based on analytical expressions, we present numerical estimates for the contributions of photoionisation probabilities to the broadening of the Rydberg energy level and the shifts in the Rydberg-state energy levels induced by thermal effects.
QUANTUM ELECTRONICS
(2022)
Article
Physics, Multidisciplinary
Nicholas L. R. Spong, Yuechun Jiao, Oliver D. W. Hughes, Kevin J. Weatherill, Igor Lesanovsky, Charles S. Adams
Summary: This study demonstrates a collectively encoded quantum bit based on a single Rydberg excitation stored in an ensemble of N entangled atoms. Qubit rotations are performed by applying microwave fields, and coherent readout is achieved by mapping the excitation into a single photon. The results show that robust quantum information processing can be achieved via collective encoding using Rydberg polaritons.
PHYSICAL REVIEW LETTERS
(2021)
Article
Physics, Multidisciplinary
Rosario Gonzalez-Ferez, Janine Shertzer, H. R. Sadeghpour
Summary: It is predicted that ultralong-range Rydberg bimolecules will form in collisions between polar molecules in cold and ultracold settings, with high energy and permanent electric dipole moments. The Rydberg bimolecules have rotational constants in the MHz range, allowing for microwave spectroscopy and achieving considerable orientation. These molecules hold promise for studying a special class of long-range bimolecular interactions.
PHYSICAL REVIEW LETTERS
(2021)
Article
Chemistry, Physical
Zheng Liu, Xiaochen Wu, Yu Zhu, Rui Wang, Famin Yu, Zhigang Wang
Summary: The feasibility of superatomic Rydberg state excitation (SRSE) using gold superatoms was explored through first-principles calculations, revealing the contribution of SAMOs to electronic transitions and the superior regulation of RSE due to the two-dimensional ductility of planar SAMOs.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2021)
Article
Astronomy & Astrophysics
M. P. Roriz, M. Lugaro, C. B. Pereira, N. A. Drake, S. Junqueira, C. Sneden
Summary: Barium (Ba) stars show atmospheric signs of the slow neutron-capture mechanism from asymptotic giant branch (AGB) stars, with rubidium (Rb) playing a key role in the s-process diagnostic. The study of 180 Ba stars reveals that Rb abundances are consistent with s-process models from low-mass AGB stars, indicating the main neutron source is the C-13(alpha,n)O-16 reaction in the companions of these Ba stars. Former IR/OH massive AGB star companions were not found in this study.
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
(2021)
Article
Multidisciplinary Sciences
Qianying Hu, Zhen Zhan, Huiying Cui, Yalei Zhang, Feng Jin, Xuan Zhao, Mingjie Zhang, Zhichuan Wang, Qingming Zhang, Kenji Watanabe, Takashi Taniguchi, Xuewei Cao, Wu-Ming Liu, Fengcheng Wu, Shengjun Yuan, Yang Xu
Summary: Researchers demonstrate the spatial confinement and manipulation of Rydberg moire excitons through two-dimensional moire superlattices, indicating their potential for quantum technologies.
Article
Engineering, Electrical & Electronic
D. B. Tretyakov, V. M. Entin, E. A. Yakshina, I. I. Beterov, I. I. Ryabtsev
Summary: The temporal dynamics of the excitation process from 5S(1/2) to 39P(3/2) Rydberg states in cold atoms were studied. The experimental results are important for the application of Rydberg atoms in quantum information.
QUANTUM ELECTRONICS
(2022)
Article
Physics, Multidisciplinary
Xiao-Jun Zhang, Huan Chang, Jia-Yao Huo, Jin-Hui Wu
Summary: This article investigates the four-wave mixing (FWM) nonlinearity in an ensemble of cold Rydberg atoms. It shows the existence of both local and much larger nonlocal nonlinearity, which can be further enhanced by increasing the atomic density. These findings are of great significance for applications in quantum information processing involving FWM nonlinearity, such as the generation of squeezed or entangled states.
NEW JOURNAL OF PHYSICS
(2022)
Editorial Material
Optics
Peng Xu, Ming-Sheng Zhan
Summary: The energy exchange between two Rydberg atoms has been induced and observed on a nanosecond timescale, which paves the way for the realization of ultrafast quantum gates.
Article
Multidisciplinary Sciences
Annalisa Coriolano, Laura Polimeno, Marco Pugliese, Alessandro Cannavale, Dimitrios Trypogeorgos, Anna Di Renzo, Vincenzo Ardizzone, Aurora Rizzo, Dario Ballarini, Giuseppe Gigli, Vincenzo Maiorano, Adzilah Shahna Rosyadi, Ching-An Chuang, Ching-Hwa Ho, Luisa De Marco, Daniele Sanvitto, Milena De Giorgi
Summary: Rhenium disulfide, belonging to the group VII transition metal dichalcogenides, possesses attractive properties such as high refractive index, remarkable oscillator strength, large birefringence, and good chemical stability. This material shows unique optical properties from bulk to monolayer, making it suitable for optical devices. The study demonstrates the strong coupling between cavity modes and excited states, leading to a strong polariton interaction, and clarifies the nature of important spectral features.
Article
Metallurgy & Metallurgical Engineering
Lei Liu, Bao-zhong Ma, Quan-kuang Zhang, Hui Yang, Cheng-yan Wang, Yong-qiang Chen
Summary: This paper presents a novel method for efficiently extracting Rb and K from complex rubidium ore. The method involves thermal activating and water quenching of the ore, followed by leaching with sulfuric acid. Experimental results showed high leaching rates of Rb and K, reaching 99.24% and 98.97% respectively, under specific conditions. The consumption of sulfuric acid was reduced by 200 kg/t after two-stage leaching. The leaching kinetics of the rubidium ore water quenched slag followed the hybrid control model with an apparent activation energy of 31.46 kJ/mol.
JOURNAL OF CENTRAL SOUTH UNIVERSITY
(2023)
Article
Chemistry, Physical
R. Wang, J. Sous, M. Aghigh, K. L. Marroquin, K. M. Grant, F. B. V. Martins, J. S. Keller, E. R. Grant
Summary: Out-of-equilibrium, strong correlation in a many-body system can trigger emergent properties that act to constrain the natural dissipation of energy and matter. This study focuses on the initial stages of avalanche and quench in a state-selected Rydberg gas to characterize intermolecular interaction dynamics using mm-wave spectroscopy.
JOURNAL OF CHEMICAL PHYSICS
(2022)
