On the Directivity of Radiating Quantum Electromagnetic Systems  

作　　者：Said Mikki 

机构地区：[1]Zhejiang University-University of Illinois at Urbana-Champaign(ZJU-UIUC)Institute,Zhejiang University,Haining 314400,China [2]Department of Electrical and Computer Engineering,University of Illinois at Urbana-Champaign,Urbana 61801-3028,IL,USA

出　　处：《Electromagnetic Science》2024年第3期52-70,共19页电磁科学（英文）

摘　　要：We explore the spatial directivity of radiating quantum source systems,which are defined as any generic source capable of producing photon emission and directing it to specific regions in space.We present a comprehensive definition of quantum directivity,inspired by both classical antenna theory and photon detection theory.Through an in-depth conceptual and mathematical analysis,we identify and address several critical challenges associated with characterizing the directive properties of a general quantum source system.Our approach essentially presents a computational model that relies solely on the density operator of the radiation field as input.

关 键 词：Quantum source systems DIRECTIVITY Quantum antennas Quantum technologies 

分 类 号：O41[理学—理论物理]