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SUMMARY:Rethinking Gravity: From Torsion and Nonmetricity to Black Holes a
 nd Cosmology
DTSTART;VALUE=DATE-TIME:20260521T061000Z
DTEND;VALUE=DATE-TIME:20260521T065000Z
DTSTAMP;VALUE=DATE-TIME:20260530T155528Z
UID:indico-contribution-2472@indico.itp.ac.cn
DESCRIPTION:Speakers: Sebastian Bahamonde (Institute for Basic Science CTP
 U-CGA)\nEinstein’s theory describes gravity through spacetime curvature\
 , but more general gauge-theoretic frameworks allow spacetime to carry tor
 sion and nonmetricity as well. I will first introduce metric-affine gravit
 y as a framework in which curvature\, torsion\, and nonmetricity have dist
 inct geometric roles\, and discuss the theoretical consequences of these s
 tructures\, including their relation to hypermomentum and intrinsic proper
 ties of matter such as spin\, dilation\, and shear. I will then turn to bl
 ack holes in theories with torsion and/or nonmetricity\, including scalari
 sed black holes and the gravitational spin-orbit effect. Finally\, I will 
 discuss cosmological models with non-Riemannian geometry\, focusing on FLR
 W backgrounds and the propagation of an additional massive spin-2 mode ass
 ociated with torsion.\n\nhttps://indico.itp.ac.cn/event/419/contributions/
 2472/
LOCATION:Small Lecture Hall\, Chongqing University Library (图书馆小
 报告厅) 1F-9
URL:https://indico.itp.ac.cn/event/419/contributions/2472/
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