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So far, metadevices have enabled analogous black holes to trap light or sound in laboratory spacetime. However, trapping heat in a conductive environment is still challenging because diffusive behaviors are directionless. Inspired 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 diffusion. We experimentally demonstrate thermal trapping for guiding hot spots to diffuse towards the center. Graded 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 sources. These results also provide an insight into correlating transformation thermotics with other disciplines, such as cosmology, for emerging heat control schemes.<\/jats:p>","DOI":"10.1093\/nsr\/nwac159","type":"journal-article","created":{"date-parts":[[2022,8,17]],"date-time":"2022-08-17T00:27:46Z","timestamp":1660696066000},"source":"Crossref","is-referenced-by-count":30,"title":["Black-hole-inspired thermal trapping with graded heat-conduction metadevices"],"prefix":"10.1093","volume":"10","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-1823-6778","authenticated-orcid":false,"given":"Liujun","family":"Xu","sequence":"first","affiliation":[{"name":"Department of Physics, State Key Laboratory of Surface Physics, and Key Laboratory of Micro and Nano Photonic Structures (MOE), Fudan University , Shanghai 200438 , China"},{"name":"Department of Electrical and Computer Engineering, National University of Singapore , Singapore 117583 , Singapore"},{"name":"Graduate , Beijing 100193 , 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