Ultrahigh-resolution atomic localization via superposition of standing waves  

作　　者：Muhammad Idrees Ahmed S Hendy Zareen A Khan 

机构地区：[1]Institute of Nonlinear Physics and Department of Physics,Zhejiang Normal University,Jinhua 321004,China [2]Zhejiang Institute of Photoelectronics and Zhejiang Institute for Advanced Light Source,Zhejiang Normal University,Jinhua 321004,China [3]Department of Computational Mathematics and Computer Science,Institute of Natural Sciences and Mathematics,Ural Federal University,19 Mira St.,Yekaterinburg 620002,Russia [4]Department of Mechanics and Mathematics,Western Caspian University,Baku 1001,Azerbaijan [5]Department of Mathematical Sciences,College of Science,Princess Nourah Bint Abdulrahman University,PO Box 84428,Riyadh 11671,Saudi Arabia

出　　处：《Communications in Theoretical Physics》2025年第3期57-65,共9页理论物理通讯(英文版)

基　　金：Princess Nourah bint Abdulrahman University Researchers Supporting Project number(PNURSP2024R8),Princess Nourah bint Abdulrahman University,Riyadh,Saudi Arabia。

摘　　要：In this study we theoretically demonstrate ultrahigh-resolution two-dimensional atomic localization within a three-levelλ-type atomic medium via superposition of asymmetric and symmetric standing wave fields.Our analysis provides an understanding of the precise spatial localization of atomic positions at the atomic level,utilizing advanced theoretical approaches and principles of quantum mechanics.The dynamical behavior of a three-level atomic system is thoroughly analyzed using the density matrix formalism within the realm of quantum mechanics.A theoretical approach is constructed to describe the interaction between the system and external fields,specifically a control field and a probe field.The absorption spectrum of the probe field is thoroughly examined to clarify the spatial localization of the atom within the proposed configuration.A theoretical investigation found that symmetric and asymmetric superposition phenomena significantly influence the localized peaks within a two-dimensional spatial domain.Specifically,the emergence of one and two sharp localized peaks was observed within a one-wavelength domain.We observed notable influences of the intensity of the control field,probe field detuning and decay rates on atomic localization.Ultimately,we have achieved an unprecedented level of ultrahigh resolution and precision in localizing an atom within an area smaller thanλ/35×λ/35.These findings hold promise for potential applications in fields such as Bose-Einstein condensation,nanolithography,laser cooling,trapping of neutral atoms and the measurement of center-of-mass wave functions.

关 键 词：ultrahigh resolution atom localization symmetric and asymmetric superposition probe absorption standing wave fields 

分 类 号：O41[理学—理论物理]