暗激子
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科学家首次直接观测到神秘暗激子演变过程
Xin Hua Wang· 2025-10-10 14:37
Core Insights - Researchers at Okinawa Institute of Science and Technology have successfully observed the evolution of dark excitons, a previously elusive process, paving the way for advancements in classical and quantum information technologies [1][2] Group 1: Research Findings - The research team utilized a state-of-the-art Time-Resolved Angle-Resolved Photoemission Spectroscopy (TR-ARPES) device along with a self-developed extreme ultraviolet light source to directly observe dark excitons in atomically thin semiconductor materials, specifically transition metal dichalcogenides [1] - The observed dark excitons were confirmed to exist for a duration on the order of nanoseconds [1] Group 2: Implications for Quantum Technology - Dark excitons are less susceptible to external environmental factors such as temperature, making them highly promising for quantum technology applications due to their ability to maintain quantum states for longer periods [2] - The lead author of the paper, Professor Kaushal Dhan, emphasized that dark excitons have minimal interaction with light, which helps preserve their quantum characteristics, presenting significant potential as information carriers [2]