Black-hole-inspired thermal trapping with graded heat-conduction metadevices

作     者：Liujun Xu Jinrong Liu Peng Jin Guoqiang Xu Jiaxin Li Xiaoping Ouyang Ying Li Cheng-Wei Qiu Jiping Huang Liujun Xu;Jinrong Liu;Peng Jin;Guoqiang Xu;Jiaxin Li;Xiaoping Ouyang;Ying Li;Cheng-Wei Qiu;Jiping Huang

作者机构：Department of PhysicsState Key Laboratory of Surface Physics and Key Laboratory of Micro and Nano Photonic Structures (MOE) Fudan University Department of Electrical and Computer Engineering National University of Singapore Graduate School of China Academy of Engineering Physics School of Materials Science and Engineering Xiangtan University Interdisciplinary Center for Quantum Information State Key Laboratory of Modern Optical InstrumentationZJU-Hangzhou Global Scientific and Technological Innovation CenterZhejiang University International Joint Innovation CenterKey Laboratory of Advanced Micro/Nano Electronic Devices and Smart Systems of Zhejiang The Electromagnetics Academy of Zhejiang University Zhejiang University 

出 版 物：《National Science Review》 (国家科学评论(英文版))

年 卷 期：2023年第10卷第2期

页      面：131-138页

核心收录：

学科分类：080701[工学-工程热物理] 08[工学] 0807[工学-动力工程及工程热物理] 

基　　金：supported by the National Natural Science Foundation of China (11725521 and 12035004 to J.H 92163123 to Y.L.) the Science and Technology Commission of Shanghai Municipality (20JC1414700 to J.H.) the Singapore Ministry of Education (A-8000107-01-00 to C.-W.Q) 

主　　题：thermal trapping graded metadevices imitated advection 

摘      要：The curved space-time produced by black holes leads to the intriguing trapping *** far,metadevices have enabled analogous black holes to trap light or sound in laboratory ***,trapping heat in a conductive environment is still challenging because diffusive behaviors are *** by black holes,we construct graded heat-conduction metadevices to achieve thermal trapping,resorting to the imitated advection produced by graded thermal conductivities rather than the trivial solution of using insulation materials to confine thermal *** experimentally demonstrate thermal trapping for guiding hot spots to diffuse towards the *** heat-conduction metadevices have advantages in energy-efficient thermal regulation because the imitated advection has a similar temperature field effect to the realistic advection that is usually driven by external energy *** results also provide an insight into correlating transformation thermotics with other disciplines,such as cosmology,for emerging heat control schemes.