重庆邮电大学学报（自然科学版）2026，Vol.38Issue(3)：446-456,11.DOI:10.3979/j.issn.1673-825X.202505160121
量子通信中准二维超冷费米原子体系的BCS-BEC渡越
BCS-BEC crossover in quasi-2D ultracold Fermi atomic systems for quantum communications
摘要
Abstract
As a core technology of next-generation information systems,quantum communication relies on quantum entanglement and quantum-state manipulation to achieve secure information transmission.Ultracold atomic systems,characterized by their exceptional purity and controllability,provide a unique physical platform for quantum communication.By cooling Fermi atoms to temperatures near absolute zero and employing magneto-optical traps and optical lattices to realize dimensional confinement,these systems enable precise investigations of quantum many-body phenomena and quantum-state engineering.The Bardeen-Cooper-Schrieffer-Bose-Einstein condensation(BCS-BEC)crossover offers a solid theoretical and experimental foundation for the precise manipulation of quantum states in quantum communication applications.This paper systematically reviews recent advances in Gaussian pair fluctuation theory for both three-dimensional and quasi-two-dimensional ultracold Fermi atomic systems.It introduces the theoretical models and experimental progress related to quasi-two-dimensional ultracold Fermi gases and analyzes the major challenges that remain in current research.The review provides valuable insights into quantum phase transitions and quantum-state evolution in ultracold atomic systems,while also serving as an important reference for the preparation,manipulation,and transmission of quantum states in quantum communication technologies.关键词
量子通信/BCS-BEC渡越/准二维超冷费米原子体系/量子态Key words
quantum communication/Bardeen-Cooper-Shrieffer-Bose-Einstein condensation crossover/quasi-two-dimensional ultracold Fermi atomic system/quantum state分类
信息技术与安全科学引用本文复制引用
杨倩,周晶..量子通信中准二维超冷费米原子体系的BCS-BEC渡越[J].重庆邮电大学学报（自然科学版）,2026,38(3):446-456,11.基金项目
重庆市科学技术局科研项目(CSTB2025NSCQ-GPX1303) Scientific Research Program from Science and Technology Bureau of Chongqing City(CSTB2025NSCQ-GPX1303) （CSTB2025NSCQ-GPX1303）
